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• .htaccess redirect question

  - by user473056

  Hi, I'm trying to set up my .htaccess file to take the displayed link and route it to the destination link as below Displayed Link http://www.my-website.com/click-4559226-10388358?url=https%3A%2F%2Fdestination-website2.com%2FItem.php%3Fid%3D44350396%26sld%3DA6D7A632-821E-4b78-ACD0-147658B77BD6 Destination Link http://www.destination-website.com/click-4559226-10388358?url=https%3A%2F%2Fdestination-website2.com%2FItem.php%3Fid%3D44350396%26sld%3DA6D7A632-821E-4b78-ACD0-147658B77BD6 Effectively, all that changes is the first url (http://www.my-website.com) everything after that is the same. Is this possible and could someone briefly explain how I would go about it? * Just to be clear, I dont want to redirect everything from my-webiste.com. Just links that start http://www.my-website.com/click-4559226-10388358

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• Calling Google's Custom Search API via Python

  - by user353829

  I am writing in Python a module that will query Google's Custom Search API and return all listings of domain 'example.com' I Have been reading instructions at https://code.google.com/apis/customsearch/v1/getting_started.html and am a little stumped at the moment. Are my assumptions listed below correct? For example, to search for results that has 'example.com' in the URL, the query is: *'https://www.googleapis.com/customsearch/v1?key=my_key&cx=017576662512468239146:omuauf_lfve&q=site:example.com*' *key=my_key*: value of key given by google cx=017576662512468239146: name of the search engine (google)? *omuauf_lfve*: I have no idea what this is q=site:example.com: This should return all results with 'example.com'; e.g. www.a.example.com, b.example.com, example .com

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• PHP Regex. How to remove all element anchor tags but keep anchor tags with certain href attribute contain JPG|PNG|GIF

  - by namaku doni

  input <a href="http://mysite.com">My Site</a> <a href="http://mysite.com/image.jpg"><img src="http://mysite.com/image.jpg"/></a> <a href="http://mysite.com/image.gif"><img src="http://mysite.com/image.gif"/></a> <a href="http://yoursite.com">Your Site</a> output <a href="http://mysite.com/image.jpg"><img src="http://mysite.com/image.jpg"/></a> <a href="http://mysite.com/image.gif"><img src="http://mysite.com/image.gif"/></a> Thank's for help

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• How to use pointer from COM object on C#?

  - by Jaeh

  All. I'm trying to use my old dll file on .net project. So I converted this unmanaged COM object to managed one by using [tlbimp.exe] util from Windows SDK. However, one method returns a Object as a return value, but whenever I try to use it, my program generates an error. The weird thing is below: //Object[] item = s.GetObjects(); //this generates an type error Object item = s.GetObjects(); //this works okay System.WriteLine(items); //prints System.Object[] rather than System.Object. It seems like it returns a pointer which contains an object array. Isn't it ? Please anyone tell me how to handle this, and is there any documentation for this issue ?

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• Remove parameter from link

  - by goordis

  I have many links with parameter number - value is numbers between 1-1000 http://mysite.com?one=2&two=4&number=2 http://mysite.com?one=2&two=4&four=4&number=124 http://mysite.com?one=2&three=4&number=9 http://mysite.com?two=4&number=242 http://mysite.com?one=2&two=4&number=52 How can i remove from this parameter and value with PHP? I would like receive: http://mysite.com?one=2&two=4 http://mysite.com?one=2&two=4&four=4 http://mysite.com?one=2&three=4 http://mysite.com?two=4 http://mysite.com?one=2&two=4

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• ???? ????????????????????????????

  - by OTN-J Master

  Oracle Corporation????????????????????????????????????????????Oracle.com????????????????????????????????????????????????! ??????????????????????????????OTN?????????OTN Newsletter?Java Developer Newsletter?????????????????2014?5?????????? ??????????Oracle.com???????????????(???????)????????????????????????????????????12?????????????????????????????? A) Oracle.com???????????????B) Oracle.com??????????????????????C) ?????????????????????? Oracle.com???????????????????????????????????????????(???????)??????????????????????12?????????????????????????????????? ?????”OTN Newsletter 5?????????????????”???????2013?5??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????(1) ??????????????? (??????????????????????)(2) ?????????????????????????? ??????????????????????????????????(3) ????????????????   ????????·?????????????????????????(4) ???????????????????????????????????????????? (?????????????????????????????????????????) (5) ????????????????????? (6) ?????????????????????????????? ??????·Oracle.com?????????????????????·Oracle.com??????????FAQ?????????

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• Mail troubleshooting

  - by Jason Swett

  I'm just trying to send myself an e-mail. On on Ubuntu using sendmail. For some reason, it doesn't work. Here's the command I'm running and what shows up when I run it: jason@ve:~$ echo "Subject: test" | /usr/lib/sendmail -v jason@woollymammothlabs.com jason@woollymammothlabs.com... Connecting to [127.0.0.1] via relay... 220 ve.5wrvhfxg.vesrv.com ESMTP Sendmail 8.14.3/8.14.3/Debian-9.1ubuntu1; Wed, 29 Dec 2010 13:51:49 -0800; (No UCE/UBE) logging access from: localhost.localdomain(OK)-localhost.localdomain [127.0.0.1] >>> EHLO ve.5wrvhfxg.vesrv.com 250-ve.5wrvhfxg.vesrv.com Hello localhost.localdomain [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-EXPN 250-VERB 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP >>> VERB 250 2.0.0 Verbose mode >>> MAIL From:<[email protected]> SIZE=14 250 2.1.0 <[email protected]>... Sender ok >>> RCPT To:<[email protected]> >>> DATA 250 2.1.5 <[email protected]>... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 050 <[email protected]>... Connecting to 205.186.165.157. via esmtp... 050 <[email protected]>... Deferred: Connection refused by 205.186.165.157. 250 2.0.0 oBTLpnEj012261 Message accepted for delivery jason@woollymammothlabs.com... Sent (oBTLpnEj012261 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 ve.5wrvhfxg.vesrv.com closing connection It seems to me that the "Connection refused by 205.186.165.157" part is where things are going wrong, but I have no idea where or how to begin troubleshooting. Any advice?

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• How to reinstall OEM Windows 98 SE?

  - by Sammy

  I'm trying to install Windows 98 SE on an old PC and it's not going well. I run into this problem. Searching for Boot Record from Floppy..OK Starting Windows 98... TOSHIBA Enhanced-IDE CD/DVD-ROM Device Driver (ATAPI) Version 2.24 (C)Copyright Toshiba Corp. 1995-1999. All rights reserved. Device Name : TOSCD001 Number of units : 1 MSCDEX Version 2.25 Copyright (C) MIcrosoft Corp. 1986-1995. All rights reserved. Drive Z: = Driver TOSCD001 unit 0 TOSHIBA MACHINE Invalid drive specification Path not found - C:\TOOLS\CDROMDRV.SYS Invalid drive specification Invalid drive specification After that last line, it leaves me at a bitmap image displaying instructions to reboot with Ctrl+Alt+Del. It doesn't say why I have to reboot, and it doesn't state any error type, it just want's me to reboot for no apparent reason. After reboot, it just boots up from Floppy again and it cycles through the same thing all over again. The computer has been restored to original specification. Original system recovery "CD-ROM" discs are available and they are not scratched or anything, they are in very good condition. It's a set of 3 CDs, and the first disc labeled "1/3" should be the one holding the OEM version of Windows 98 SE. There is also a boot disk for Windows 98. I'm not sure what the other two discs are for. This computer came with three language support, so those could be holding different language versions or additional OEM discs. But I'm quite sure that the first disc holds the main operating system. BIOS has been set to optimized defaults. Boot priority is as follows; Floppy, IDE-0, CD-ROM. Under Standard CMOS settings, BIOS scans and autoconfigures both the hard drive and the CD/DVD drive. On POST it finds them both, and it finds the DOS bootdisk and starts preparing for installation, as you can see above. So what's this "invalid drive specification" about? Why isn't the installation starting? Updates Update 1 Booting from CD disc 2 In desperation I tried booting from the second CD. Boot order was; Floppy, CD-ROM, IDE-0. It boots normally from floppy disk, just like above, but then returns following. File not found - Z:\3LNGINST\TOOLS\PARTINFO.TXT I accidentally pressed some key on the keyboard, and before I knew it, the following screen showed up. Create Primary DOS Partition Current fixed disk drive: 1 Verifying drive integrity, 16% complete. After completion another screen showed up. Create Primary DOS Partition Current fixed disk drive: 1 Do you wish to use the maximum available size for a Primary DOS Partition and make the partition active (Y/N)?....................? [Y] Verifying drive integrity, 7% complete. I didn't choose Yes, it was set automatically. After completion the computer was automatically rebooted. Then I got a new screen. This is in Norwegian/Swedish/Finnish. Here's the message in Swedish. Hårddisken är inte klar för återställning av programvara. Installationsprogrammet måste skapa nya partitioner (C:, D:, ...). VARNING! ALLT INNEHÅLL PÅ HÅRDDISKEN KOMMER ATT RADERAS! Tryck på en tangent om du vill fortsätta (eller CTRL-C för att avbryta). Let me translate that. Hard drive is not ready for restoring the software. Setup program has to create new partitions (C:, D:, ...). WARNING! ALL CONTENTS ON THE HARD DRIVE WILL BE ERASED! Press any key to continue (or CTRL-C to cancel). I pressed Enter and it started formatting the hard drive. WARNING, ALL DATA ON NON-REMOVABLE DISK DRIVE c: WILL BE LOST! Proceed with Format (Y/N)?y Formatting 14,67.53M 1 percent completed. It automatically sets the "y" option and starts formatting. Rebooting with CD disc 1 After completing this operation it rebooted automatically. I inserted CD disc 1 and there was no issue with "invalid drive specification" anymore. Instead, a bitmap menu was displayed where it asked me to choose a language. And I thought I had it there for a while but it didn't work out. After choosing the language, another menu was displayed asking me to choose a type of recovery (restore pre-installed software OR restore hard drive partitions and pre-installed software). I opted for the second option. Then a data destruction warning showed up where I just pressed 1 to Continue. It did something and then just rebooted and the same formatting screen shows up as before. So something is not right. Am I doing it wrong? I seem to have come past the CD-ROM driver issue at least. But now I'm stuck with this problem... it seems to have something to do with the hard drive. Like... why is is it always trying to format it? Isn't it enough to format it once? By the way, it needs to be formatted as FAT32, right? Windows 98 doesn't support NTFS? I think FDISK should have taken care of this already. I know this is an old hard drive, but I connected to my main computer and it was able to read and write to it without a problem. It does have bad sectors though, but it's expected on an old hard drive like this. Any ideas?.. Update 2 I seem to be repeatedly getting stuck at the format screen where it asks to press any key to continue. So tried to cancel it this time with Ctrl+C. This leaves me at: A:\TOOLS> I can do DIR and CD and I tried to change to Z: drive. I tried running "setup" but there is no such thing. Z:\>setup Bad command or file name Update 3 Floppy structure Here's the file/folder structure of the floppy disk. A:\>dir /s Volume in drive A has no label. Volume Serial Number is 1700-1069 Directory of A:\ 1999-10-11 10:44 <DIR> BMP 1998-05-11 22:01 93 880 COMMAND.COM 1999-10-11 10:44 <DIR> factory 1999-10-11 10:44 <DIR> lang 1999-10-11 10:44 <DIR> TOOLS 2000-05-19 15:32 339 CONFIG.SYS 1999-10-26 13:38 0 BOOTLOG.TXT 2000-06-08 08:32 3 691 AUTOEXEC.BAT 4 File(s) 97 910 bytes Directory of A:\BMP 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 0 File(s) 0 bytes Directory of A:\factory 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 2000-06-08 13:09 2 662 3LNGINSF.BAT 1 File(s) 2 662 bytes Directory of A:\lang 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 1998-11-24 08:02 49 575 FORMAT.COM 1998-11-24 08:02 63 900 FDISK.EXE 2 File(s) 113 475 bytes Directory of A:\TOOLS 1999-10-11 10:44 <DIR> . 1999-10-11 10:44 <DIR> .. 1998-05-06 22:01 49 575 FORMAT.COM 1995-10-27 20:29 28 164 BMPVIEW.EXE 1999-01-26 15:54 15 MAKEPA32.TXT 1998-05-06 22:01 3 878 XCOPY.EXE 1998-05-06 22:01 41 472 XCOPY32.MOD 1998-05-06 22:01 33 191 HIMEM.SYS 1998-05-06 22:01 125 495 EMM386.EXE 1998-05-06 22:01 18 967 SYS.COM 1996-01-31 21:55 18 CLK.COM 1994-04-02 08:20 22 HARDBOOT.COM 1999-02-03 15:46 15 MAKEPA16.TXT 1999-04-14 16:36 7 840 PARTFO32.EXE 2000-05-19 15:01 1 169 PARTFORM.BAT 1996-10-02 01:47 1 642 MBRCLR.COM 1999-07-01 11:58 8 175 BIOSCHKN.EXE 1998-06-23 08:55 5 904 PAR-TYPE.EXE 1998-11-24 08:02 29 271 MODE.COM 1998-11-24 08:02 15 252 ATTRIB.EXE 1998-11-24 08:02 19 083 DELTREE.EXE 1999-04-21 15:01 23 304 NTBB.EXE 1997-05-07 14:19 1 SYS.TXT 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-11 20:01 34 566 KEYBOARD.SYS 1998-05-11 20:01 19 927 KEYB.COM 1999-10-26 14:31 910 partinfo.txt 1998-06-16 15:58 5 936 CHKDRVAC.EXE 1998-05-06 22:01 63 900 FDISK.EXE 1998-05-06 22:01 45 379 SMARTDRV.EXE 1992-12-03 19:48 10 695 SCISET.EXE 1997-06-25 15:49 6 YENT 1998-05-06 22:01 25 473 MSCDEX.EXE 1998-05-06 22:01 5 239 CHOICE.COM 1997-07-18 17:41 6 876 MBR.COM 1997-07-01 15:01 6 545 CHK2GB.COM 1998-06-10 20:04 8 128 PARTFORM.EXE 1990-01-04 02:09 19 MAKEPAR2.TXT 1990-01-04 01:00 27 MAKEPAR3.TXT 1990-01-04 01:00 27 MAKEPAR4.TXT 1998-02-13 13:47 15 MAKEPART.TXT 1999-04-14 13:47 5 200 DISKSIZE.EXE 1999-05-06 14:56 7 856 PARTFO16.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 42 File(s) 734 463 bytes Total Files Listed: 49 File(s) 948 510 bytes 12 Dir(s) 268 800 bytes free A:\> CONFIG.SYS contents Here's the content of CONFIG.SYS. DEVICE=A:\TOOLS\HIMEM.SYS /TESTMEM:OFF REM I=B000-B7ff for Desktop BIOSes rem DEVICE=A:\TOOLS\EMM386.EXE NOEMS I=B000-B7ff x=C000-D000 DEVICE=A:\TOOLS\EMM386.EXE NOEMS x=C000-D000 DEVICE=A:\TOOLS\CDROMDRV.SYS /D:TOSCD001 BUFFERS=10 FILES=69 DOS=HIGH,UMB STACKS=9,256 LASTDRIVE=Z SWITCHES=/F SHELL=A:\COMMAND.COM /P /E:2048 AUTOEXEC.BAT contents :BEGIN @ECHO OFF PATH=A:\;A:\TOOLS; MSCDEX /D:TOSCD001 /L:Z /M:10 smartdrv 1024 128 SET TOOLS=A:\TOOLS SET COMSPEC=A:\COMMAND.COM SET EXITDRIVE=C: SET EXITPATH=\ CALL Z:\SETENV.BAT > NUL :TOSHCHK BIOSChkN IF NOT ERRORLEVEL 1 goto C_ACCESS BMPVIEW Z:\3LNGINST\BMP\NO_TOSP3.bmp /X=120 /Y=80 PAUSE > NUL SET EXITDRIVE=A: GOTO END :C_ACCESS CALL PARTFORM.BAT :C_EMPTY IF EXIST C:\*.* GOTO C_NOTEMPTY call z:\setenv.bat>nul goto PREPDU :C_NOTEMPTY REM ------------------MENU------------------------ :STARTMENU CLS BMPVIEW Z:\3LNGINST\BMP\LANGSELC.BMP /X=120 /Y=120 CLK CHOICE /C:123 /N >NUL REM L is the language that is selected IF ERRORLEVEL 1 SET L=%LNG1% IF ERRORLEVEL 2 SET L=%LNG2% IF ERRORLEVEL 3 SET L=%LNG3% SET BMP=BMP%L% BMPVIEW Z:\3LNGINST\%bmp%\HDDMENU.BMP /X=72 /Y=82 CLK CHOICE /C:129F /N > NUL IF ERRORLEVEL 4 GOTO FACTORY_MENU IF ERRORLEVEL 3 GOTO EXIT_MENU IF ERRORLEVEL 2 GOTO PARTFORM_MENU IF ERRORLEVEL 1 GOTO FORMAT_MENU GOTO END :FACTORY_MENU BMPVIEW Z:\3LNGINST\%bmp%\qformat.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO FORMATF GOTO END :EXIT_MENU BMPVIEW Z:\3LNGINST\%bmp%\9.bmp /XC /X=96 /Y=267 choice /C:1pause /T:1,01 >nul SET EXITDRIVE=A: SET EXITPATH=\lang cls mode mono rem keyb xx>nul cls GOTO END :PARTFORM_MENU BMPVIEW Z:\3LNGINST\%bmp%\2.bmp /XC /X=96 /Y=216 choice /C:1pause /T:1,01 >nul BMPVIEW Z:\3LNGINST\%bmp%\partform.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO PART_FORM SET EXITDRIVE=A: GOTO END :FORMAT_MENU BMPVIEW Z:\3LNGINST\%bmp%\1.bmp /XC /X=96 /Y=165 choice /C:1pause /T:1,01 >nul BMPVIEW Z:\3LNGINST\%bmp%\qformat.bmp /X=120 /Y=140 CLK choice /c:12 /N >nul IF ERRORLEVEL 2 GOTO STARTMENU IF ERRORLEVEL 1 GOTO FORMAT SET EXITDRIVE=A: GOTO END REM ------------------ MENU END ------------------------ :FORMAT bmpview Z:\3LNGINST\%bmp%\1.bmp /XC /X=145 /Y=235 choice /C:1pause /T:1,01 >nul CLS IF (%QFORMAT%)==(NO) GOTO FULLFO FORMAT C: /Q /V:"" <A:\TOOLS\YENT >NUL call z:\setenv.bat>nul goto PREPDU :FULLFO FORMAT C: /V:"" <A:\TOOLS\YENT call z:\setenv.bat>nul goto PREPDU :FORMATF CLS IF (%QFORMAT%)==(NO) GOTO FULLFO_F FORMAT C: /Q /V:"" <A:\TOOLS\YENT >NUL call z:\setenv.bat>nul goto PREPDU_F :FULLFO_F FORMAT C: /V:"" <A:\TOOLS\YENT call z:\setenv.bat>nul goto PREPDU_F :PART_FORM bmpview Z:\3LNGINST\bmp\1.bmp /XC /X=145 /Y=235 choice /C:1pause /T:1,01 >nul MBR /! HARDBOOT REM ====================== Triple Select ====================== :PREPDU XCOPY z:\3LNGINST\*.* C:\*.* /E /S /V >NUL ATTRIB -H -R -S C:\TOOLS\CDROMDRV.SYS COPY A:\TOOLS\CDROMDRV.SYS C:\TOOLS /Y SYS C: >NUL goto REBOOT :PREPDU_F copy A:\TOOLS\SMARTDRV.EXE C:\ /Y ATTRIB -H -R -S C:\SMARTDRV.EXE copy A:\FACTORY\3LNGINSF.bat c:\ c:\3LNGINSF.bat cls REM ====================== Dual Select END ====================== REM --------------- END ------------------ :REBOOT SMARTDRV.EXE /C bmpview Z:\3LNGINST\BMP\reboot3.bmp /X=120 /Y=140 :FOREVER pause >nul goto FOREVER :END SMARTDRV.EXE /C %EXITDRIVE% cd %EXITPATH% echo on CD structure S:\>dir /s Volume in drive S is T3ELK4SC Volume Serial Number is 2042-5BC9 Directory of S:\ 2000-08-22 14:14 <DIR> 3LNGINSF 2000-08-22 14:14 <DIR> 3LNGINST 2000-06-15 15:57 <DIR> CRC 2000-06-15 12:04 387 667 767 T310C1NO.W98 2000-09-07 15:36 273 setenv.BAT 2 File(s) 387 668 040 bytes Directory of S:\3LNGINSF 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1999-10-27 10:51 1 806 AUTOEXEC.BAT 2000-08-22 14:14 <DIR> BMP 2000-05-19 15:29 265 CONFIG.SYS 2000-08-22 14:14 <DIR> POSTINST 2000-08-22 14:14 <DIR> TOOLS 2000-08-22 14:14 <DIR> WIN98SYS 2 File(s) 2 071 bytes Directory of S:\3LNGINSF\BMP 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1999-01-04 02:38 718 3.BMP 2000-07-05 11:22 60 118 Cdchg2.bmp 2000-07-05 11:22 60 118 Cdchg3.bmp 2000-07-05 13:37 60 118 Fin.bmp 2000-07-06 14:18 120 118 Menu.bmp 2000-07-05 13:34 60 118 Nor.bmp 2000-07-05 11:53 35 318 Progress.bmp 2000-07-05 13:40 60 118 Swe.bmp 2000-07-05 12:09 84 118 Wrongcd2.bmp 2000-07-05 12:09 84 118 Wrongcd3.bmp 12 File(s) 626 416 bytes Directory of S:\3LNGINSF\POSTINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 09:15 33 POSTINST.BAT 1 File(s) 33 bytes Directory of S:\3LNGINSF\TOOLS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-07-06 14:49 3 593 3LNGINST.BAT 1998-11-24 08:02 15 252 ATTRIB.EXE 1995-10-27 18:29 28 164 BMPVIEW.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 1998-05-06 20:01 5 239 CHOICE.COM 1996-01-31 19:55 18 CLK.COM 1998-11-24 08:02 19 083 DELTREE.EXE 1998-05-06 20:01 125 495 EMM386.EXE 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-06 20:01 49 575 FORMAT.COM 1994-04-02 06:20 22 HARDBOOT.COM 1998-05-06 20:01 33 191 HIMEM.SYS 1998-05-06 20:01 25 473 MSCDEX.EXE 1998-05-06 20:01 12 663 RAMDRIVE.SYS 1998-05-06 20:01 45 379 SMARTDRV.EXE 1997-05-07 14:19 1 SYS.TXT 1995-09-27 14:25 6 813 VOLCHECK.EXE 1998-05-06 20:01 3 878 XCOPY.EXE 1998-05-06 20:01 41 472 XCOPY32.MOD 1997-06-25 13:49 6 YENT 20 File(s) 490 603 bytes Directory of S:\3LNGINSF\WIN98SYS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1998-12-04 20:00 222 390 IO.SYS 1998-05-06 20:01 18 967 SYS.COM 1998-05-06 20:01 93 880 command.com 3 File(s) 335 237 bytes Directory of S:\3LNGINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1999-05-31 09:51 1 576 AUTOEXEC.BAT 2000-08-22 14:14 <DIR> BMP 2000-08-22 14:14 <DIR> Bmpfin 2000-08-22 14:14 <DIR> Bmpnor 2000-08-22 14:14 <DIR> Bmpswe 2000-05-19 15:30 265 CONFIG.SYS 2000-08-22 14:14 <DIR> POSTINST 2000-08-22 14:14 <DIR> TOOLS 2000-08-22 14:14 <DIR> WIN98SYS 2 File(s) 1 841 bytes Directory of S:\3LNGINST\BMP 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1999-01-04 02:38 718 3.BMP 2000-07-05 11:22 60 118 Cdchg2.bmp 2000-07-05 11:22 60 118 Cdchg3.bmp 2000-07-05 13:37 60 118 Fin.bmp 2000-07-06 14:18 120 118 Menu.bmp 2000-07-05 13:34 60 118 Nor.bmp 2000-07-05 11:53 35 318 Progress.bmp 2000-07-06 14:08 40 518 Reboot3.bmp 2000-07-05 13:40 60 118 Swe.bmp 2000-07-05 12:09 84 118 Wrongcd2.bmp 2000-07-05 12:09 84 118 Wrongcd3.bmp 2000-07-05 13:52 48 118 langselc.bmp 2000-07-05 11:47 57 318 no_tosp3.bmp 15 File(s) 772 370 bytes Directory of S:\3LNGINST\Bmpfin 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 2000-03-08 15:02 78 486 Hddmenu.bmp 2000-03-08 15:31 25 318 No_tospc.bmp 2000-03-08 15:37 36 518 PARTFORM.BMP 2000-03-08 15:42 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\Bmpnor 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 1999-05-05 13:26 78 486 Hddmenu.bmp 1998-07-13 11:36 25 318 No_tospc.bmp 1998-07-13 11:41 36 518 PARTFORM.BMP 1998-07-13 11:45 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\Bmpswe 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1997-04-22 09:43 718 1.BMP 1997-04-22 09:44 718 2.BMP 1998-06-13 00:07 718 9.bmp 1999-05-06 08:14 78 486 Hddmenu.bmp 1998-07-10 16:25 25 318 No_tospc.bmp 1998-07-10 16:29 36 518 PARTFORM.BMP 1998-07-10 17:08 36 518 Qformat.bmp 7 File(s) 178 994 bytes Directory of S:\3LNGINST\POSTINST 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 09:15 33 POSTINST.BAT 1 File(s) 33 bytes Directory of S:\3LNGINST\TOOLS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-05-19 14:52 3 898 3LNGINST.BAT 1995-10-27 18:29 28 164 BMPVIEW.EXE 1999-01-13 11:13 13 720 CDROMDRV.SYS 1998-05-06 20:01 5 239 CHOICE.COM 1996-01-31 19:55 18 CLK.COM 1998-05-06 20:01 125 495 EMM386.EXE 1999-07-01 12:23 61 566 F3DCHK.EXE 1998-05-06 20:01 49 575 FORMAT.COM 1994-04-02 06:20 22 HARDBOOT.COM 1998-05-06 20:01 33 191 HIMEM.SYS 1998-05-06 20:01 25 473 MSCDEX.EXE 2000-07-06 14:41 910 PARTINFO.TXT 1998-05-06 20:01 12 663 RAMDRIVE.SYS 1998-05-06 20:01 45 379 SMARTDRV.EXE 1997-05-07 14:19 1 SYS.TXT 1995-09-27 14:25 6 813 VOLCHECK.EXE 1998-05-06 20:01 3 878 XCOPY.EXE 1998-05-06 20:01 41 472 XCOPY32.MOD 1997-06-25 13:49 6 YENT 19 File(s) 457 483 bytes Directory of S:\3LNGINST\WIN98SYS 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 1998-12-04 20:00 222 390 IO.SYS 1998-05-06 20:01 18 967 SYS.COM 1998-05-06 20:01 93 880 command.com 3 File(s) 335 237 bytes Directory of S:\CRC 1601-01-01 02:00 <DIR> . 1601-01-01 02:00 <DIR> .. 2000-06-15 12:07 181 422 T310C1NO.ALL 2000-06-15 12:09 215 427 T310C1NO.CRC 2000-06-15 12:07 2 157 T310C1NO.HID 3 File(s) 399 006 bytes Total Files Listed: 104 File(s) 391 625 352 bytes 42 Dir(s) 0 bytes free S:\> Now which line or lines need to be changed? Do I really have to change drive letter Z: to C:? Proposed solutions Solution #1 Ramhound proposed to change the boot order to following; CD-ROM, IDE-0, Floppy This didn't help. In fact, here is the result of it. Searching for Boot Record from CDROM..Not Found Searching for Boot Record from IDE-0.. OK Missing operating system Any other ideas?... Solution #2 Rik proposed to run Z:\setup. Now that I have found a way to drop to DOS prompt with Ctrl+C as described above (Update 2), I did try running setup but there is no such command or file in there. So that didn't work.

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• Internal/external DNS with subdomains

  - by ScottMcGready

  I've got an internal DNS server (part of OS X server) and it's acting as the main DNS server for a specific (physical) site. When it can't resolve hostnames itself, it forwards requests to Google's DNS servers. Everything works well apart from a couple of issues, which I think may be related but can't get to the bottom of. I've got a number of intranet sites setup, that people can access by going to something like: intranet.mydomainname.com selfservice.mydomainname.com These point to various servers in the building that host these sites. Whether internal or external (without VPN), I can access these sites just dandy. Where the issue comes is when I want to host, say, test.mydomainname.com on an external server it fails to resolve as the primary zone for mydomainname.com is internal. How can I get it to look up Google's DNS (or an external one) for that zone if it's not in the list? I've tried everything I can think (adding my host's nameservers etc) of but nothing seems to work fully. Also I can't access intranet sites when connected via VPN and from what I can gather - I believe this might be related to the DNS issue but just wanted to give as much information as possible. Edit The domain mydomainname.com is hosted externally and pointed at the site's public IP. From there we can forward the requests to the relevant internal server. Externally everything works, internally though any subdomain of mydomainname.com is served locally, I want it to be served from Google's DNS / externally. DNS Configuration As per a request, here's the current DNS configuration (OS X server's DNS tab). I've blurred out the .private address as it's not really relevant but it's the server's name. The colored dots are just there to link everything together. Screenshot: In an attempt to clarify this is what I want: intranet.mydomain.com -> 192.168.0.12 selfservice.mydomain.com -> 192.168.0.13 *.mydomain.com -> forward to external DNS mydomain.com -> forward to external DNS At the moment any subdomain of mydomain.com is not forwarded on (think this is because of the primary zone being mydomain.com with a NS of intranet.mydomain.com but could do with a little nod in the right direction.

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• DKIM error: dkim=neutral (bad version) header.i=

  - by GBC

  Ive been struggling the last couple of hours with setting up DKIM on my Postfix/CentOS 5.3 server. It finally sends and signs the emails, but apparently Google still does not like it. The errors I'm getting are: dkim=neutral (bad version) header.i=@mydomain.com.au from googles "show original" interface. This is what my DKIM-signature header look like: v=1; a=rsa-sha1; c=simple/simple; d=mydomain.com.au; s=default; t=1267326852; bh=0wHpkjkf7ZEiP2VZXAse+46PC1c=; h=Date:From:Message-Id:To:Subject; b=IFBaqfXmFjEojWXI/WQk4OzqglNjBWYk3jlFC8sHLLRAcADj6ScX3bzd+No7zos6i KppG9ifwYmvrudgEF+n1VviBnel7vcVT6dg5cxOTu7y31kUApR59dRU5nPR/to0E9l dXMaBoYPG8edyiM+soXo7rYNtlzk+0wd5glgFP1I= Very appreciative of any suggestions as to how I can solve this problem! Btw, here is exactly how I installed dkim-milter in CentOS 5.3 for postfix, if anyone is interested (based on this guide): mkdir dkim-milter cd dkim-milter wget http://www.topdog-software.com/oss/dkim-milter/dkim-milter-2.8.3-1.x86_64.rpm ======S====== Newest version: http://www.topdog-software.com/oss/dkim-milter/ ======E====== rpm -Uvh dkim-milter-2.8.3-1.x86_64.rpm /usr/bin/dkim-genkey -r -d mydomain.com.au ======S====== add contents of default.txt to DNS as TXT _ssp._domainkey TXT dkim=unknown _adsp._domainkey TXT dkim=unknown default._domainkey TXT v=DKIM1; g=*; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GWETBNiQKBgQC5KT1eN2lqCRQGDX+20I4liM2mktrtjWkV6mW9WX7q46cZAYgNrus53vgfl2z1Y/95mBv6Bx9WOS56OAVBQw62+ksXPT5cRUAUN9GkENPdOoPdpvrU1KdAMW5c3zmGOvEOa4jAlB4/wYTV5RkLq/1XLxXfTKNy58v+CKETLQS/eQIDAQAB ======E====== mv default.private default mkdir /etc/mail/dkim/keys/mydomain.com.au mv default /etc/mail/dkim/keys/mydomain.com.au chmod 600 /etc/mail/dkim/keys/mydomain.com.au/default chown dkim-milt.dkim-milt /etc/mail/dkim/keys/mydomain.com.au/default vim /etc/dkim-filter.conf ======S====== ADSPDiscard yes ADSPNoSuchDomain yes AllowSHA1Only no AlwaysAddARHeader no AutoRestart yes AutoRestartRate 10/1h BaseDirectory /var/run/dkim-milter Canonicalization simple/simple Domain mydomain.com.au #add all your domains here and seperate them with comma ExternalIgnoreList /etc/mail/dkim/trusted-hosts InternalHosts /etc/mail/dkim/trusted-hosts KeyList /etc/mail/dkim/keylist LocalADSP /etc/mail/dkim/local-adsp-rules Mode sv MTA MSA On-Default reject On-BadSignature reject On-DNSError tempfail On-InternalError accept On-NoSignature accept On-Security discard PidFile /var/run/dkim-milter/dkim-milter.pid QueryCache yes RemoveOldSignatures yes Selector default SignatureAlgorithm rsa-sha1 Socket inet:20209@localhost Syslog yes SyslogSuccess yes TemporaryDirectory /var/tmp UMask 022 UserID dkim-milt:dkim-milt X-Header yes ======E====== vim /etc/mail/dkim/keylist ======S====== *@mydomain.com.au:mydomain.com.au:/etc/mail/dkim/keys/mydomain.com.au/default ======E====== vim /etc/postfix/main.cf ======S====== Add: smtpd_milters = inet:localhost:20209 non_smtpd_milters = inet:localhost:20209 milter_protocol = 2 milter_default_action = accept ======E====== vim /etc/mail/dkim/trusted-hosts ======S====== localhost 127.0.0.1 ======E====== /etc/mail/local-host-names ======S====== localhost 127.0.0.1 ======E====== /sbin/chkconfig dkim-milter on /etc/init.d/dkim-milter start /etc/init.d/postfix restart

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• Why is site serving different SSL certs to different browsers?

  - by TRiG

  The SSL certificate on menswearireland.com and on www.menswearireland.com works fine on Safari, Chrome, SeaMonkey, K-Meleon, QtWeb, Firefox, and Opera. However, Internet Explorer claims that there is an error: The security certificate presented by this website was not issued by a trusted certificate authority. The security certificate presented by this website was issued for a different website's address. Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server. Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0) Another site hosted on the same managed server shows no errors: achill-fieldschool.com and www.achill-fieldschool.com work fine on IE, even though as far as I can tell the certificate is set up identically. What am I doing wrong? This is a LAMPP server running Plesk. It looks like the server is showing different certificates to different clients. To some clients it shows a RapidSSL certificate made out to www.menswearireland.com with menswearireland.com as a valid alternative name. To other clients, it shows a Parallels Panel certificate, made out to Parallels Panel. Here are results from a few different online SSL checkers: most say it's fine, while two show errors. Three online checkers say it's valid Comodo SSL Check shows it as valid DigiCert SSL Check shows it as valid SSL Shopper SSL Check shows it as valid Common name: www.menswearireland.com SANs: www.menswearireland.com, menswearireland.com Valid from October 2, 2012 to November 4, 2013 Serial Number: 559425 (0x88941) Signature Algorithm: sha1WithRSAEncryption Issuer: RapidSSL CA Another online checker seems to see a completely different certificate GeoCerts SSL Check shows it as invalid Common name: Parallels Panel Organization: Parallels Valid from August 15, 2012 to August 15, 2013 Issuer: Parallels Panel Another online checker sees more than one certificate Symantic SSL Check shows it as invalid The certificate installation checker connected to the Web server and read its certificates, but could not determine which is the primary certificate for the Web server. Incidentally, on both menswearireland.com and achill-fieldschool.com the homepage will redirect from HTTPS to HTTP. To see SSL details, visit the page /account on both (that page will redirect from HTTP to HTTPS). I’ve found more information in a more detailed online SSL checker. https://www.ssllabs.com/ssltest/analyze.html?d=menswearireland.com This site works only in browsers with SNI support My understanding is that SNI (RFC 6066) is a method for putting many SSL sites on one shared IP address and port. This does not work on Internet Explorer on older versions of Windows (this has to do with the version of Windows, not the version of Internet Explorer). However, all our SSL sites are on a unique IP address, so we shouldn’t need SNI.

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• How is incoming SMTP mail being delivered despite blocked port

  - by Josh

  I setup a MX mail server, everything works despite port 25 being blocked, I'm stumped as to why I am able to receive email with this setup, and what the consequences might be if I leave it this way. Here are the details: Connections to SMTP over port 25 and 587 both reliably connect over my local network. Connections to SMTP over port 25 are blocked from external IPs (the ISP is blocking the port). Connections to Submission SMTP over port 587 from external IPs are reliable. Emails sent from gmail, yahoo, and a few other addresses all are being delivered. I haven't found an email provider that fails to deliver mail to my MX. So, with port 25 blocked, I am assuming other MTA servers fallback to port 587, otherwise I can't imagine how the mail is received. I know port 25 shouldn't be blocked, but so far it works. Are there mail servers that this will not work with? Where can I find more about how this is working? -- edit More technical detail, to validate that I'm not missing something silly. Obviously in the transcript below I've replaced my actual domain with example.com. # DNS MX record points to the A record. $ dig example.com MX +short 1 example.com $ dig example.com A +short <Public IP address> # From a public server (not my ISP hosting the mail server) # We see port 25 is blocked, but port 587 is open $ telnet example.com 25 Trying <public ip>... telnet: Unable to connect to remote host: Connection refused # Let's try openssl $ openssl s_client -starttls smtp -crlf -connect example.com:25 connect: Connection refused connect:errno=111 # Again from a public server, we see port 587 is open $ telnet example.com 587 Trying <public ip>... Connected to example.com. Escape character is '^]'. 220 example.com ESMTP Postfix ehlo example.com 250-example.com 250-PIPELINING 250-SIZE 10485760 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-BINARYMIME 250 CHUNKING quit 221 2.0.0 Bye Connection closed by foreign host. Here is a portion from the mail log when receiving a message from gmail: postfix/postscreen[93152]: CONNECT from [209.85.128.49]:48953 to [192.168.0.10]:25 postfix/postscreen[93152]: PASS NEW [209.85.128.49]:48953 postfix/smtpd[93160]: connect from mail-qe0-f49.google.com[209.85.128.49] postfix/smtpd[93160]: 7A8C31C1AA99: client=mail-qe0-f49.google.com[209.85.128.49] The log shows that a connection was made to the local IP on port 25 (I'm not doing any port mapping, so it is port 25 on the public IP too). Seeing this leads me to hypothesize that the ISP block on port 25 only occurs when a connection is made from an IP address that is not known to be a mail server. Any other theories?

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• Exchange 2007 and migrating only some users under a shared domain name

  - by DomoDomo

  I'm in the process of moving two law firms to hosted Exchange 2007, a service that the consulting company I work for offers. Let's call these two firms Crane Law and Poole Law. These two firms were ONE firm just six months ago, but split. So they have three email domains: Old Firm: craneandpoole.com New Firm 1: cranelaw.com New Firm 2: poolelaw.com Both Firm 1 & Firm 2 use craneandpoole.com email addresses, as for the other two domains, only people who work at the respective firm use that firm's domain name, natch. Currently these two firms are still using the same pre-split internal Exchange 2007 server, where MX records for all three domains point. Here's the problem. I'm not moving both companies at the same time. I'm moving Crane Law two weeks before Poole Law. During this two weeks, both companies need to be able to: Continue to receive emails addressed to craneandpoole.com Send emails between firms, using cranelaw.com and poolelaw.com accounts I also have a third problem: I'd like to setup all three domains in my hosting infrastructure way ahead of time, to make my own life easier What would solve all my problems would be, if there is some way I can tell Exchange 2007, even though this domain exists locally forward on the message to the outside world using public MX record as a basis for where to send it (or if I could somehow create a route for it statically that would work too). If this doesn't work, to address points #1 when I migrate Crane Law, I will delete all references locally to cranelaw.com on their current Exchange server, and setup individual forwards for each of their craneandpool.com mailboxes to forward to our hosted exchange server. This will also take care of point #2, since the cranelaw.com won't be there locally, when poolelaw.com tries to send to cranelaw.com, public MX records will be used for mail routing decisions and go to my hosted exchange. The bummer of that though is, I won't be able to setup poolelaw.com ahead of time in hosted Exchange, will have to wait to do it day of :( Sorry for the long and confusing post. Just wondering if there is a better or simpler way to do what I want? Three tier forests and that kind of thing are out, this is just a two week window where they won't be in the same place.

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• Exchange 2010 forwarded emails by external servers being blocked

  - by MadBoy

  Our users were getting spam messages from their own accounts (same domain/login for example madboy@company.com to [email protected]). This is preety standard trick and I decided to block it so that anonymous users can't send emails as @company.com. This brought some problems on us like our printers not being able to send emails etc but I solved it with secondary smtp receiver on different port with ip restrictions. However it seems to affect forwarding by some e-mail servers as well: Hi. This is the qmail-send program at home.pl. I'm afraid I wasn't able to deliver your message to the following addresses. This is a permanent error; I've given up. Sorry it didn't work out. : 89.14.1.26 failed after I sent the message. Remote host said: 550 5.7.1 Client does not have permissions to send as this sender --- Below this line is a copy of the message. Return-Path: Return-Path: Received: from mail.company.com [89.14.1.26] (HELO mail.company.com) by company.ho.pl [79.93.31.43] with SMTP (IdeaSmtpServer v0.70) id 488fcb01c2f069d9; Tue, 3 Jan 2012 09:46:55 +0100 Received: from EXCHANGE1.COMPANY ([fe80::d425:135f:b655:1223]) by EXCHANGE2.COMPANY ([fe80::193f:51ac:9316:cb27%14]) with mapi id 14.01.0355.002; Tue, 3 Jan 2012 09:46:55 +0100 From: =?iso-8859-2?Q?MadBoy?= So basically server forwards it without affecting email address it was send with and our servers treat it like spam. I used this command to block things: Get-ReceiveConnector "DEFAULT Exchange2" | Get-ADPermission -user "NT AUTHORITY\Anonymous Logon" | where {$_.ExtendedRights -like "ms-exch-smtp-accept-authoritative-domain-sender"} | Remove-ADPermission Is there anyway I can keep on receiveing things like forwards but be able to block things (except some dedicated antispam solution - this will be added later). Also how do I "reassing" back the permissions that was removed? EDIT to clarify: I have a domain domain.com configured as Authorative. Couple of our users are on project for differentcompany.com which is not on our servers or anywhere close. Now when they send an email from their accounts lets say myuser@domain.com to specialalias@differentcompany.com that special alias is configured so that any email it receives it forwards to multiple people including a group alias at our domain group@domain.com and that group alias puts the email in users mailboxes. After the email is forwarded by specialalias@differentcompany.com and it reaches our server it is denied because the forwarding done by the "external" server doesn't affect user information so for the server it seems like the myuser@domain.com was actually sender and it treats it as spam and denies it. The server at differentcompany.com just adds itself to the header that it passed thru it and doesn't modify sender at anyway (seems like this is how forwarding works). Although I could probably allow this particular server as allowed to relay but this would seem to affect more servers/users as anyone can setup forwarding on their email back to our domain...

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• Postfix to deliver mail to a virtual address mailbox

  - by Chloe

  Postfix version 2.6.6, Dovecot Version 2.0.9 I want to setup Postfix + Dovecot. Dovecot seems to be working. I can authenticate. However, the mailbox is empty! Nothing will get delivered! I followed many tutorials on Postfix + Dovecot but they seem to want to complicate things by using Dovecot LDA or MySQL. I just want it to be very simple and having Postfix deliver to the virtual mail boxes are fine. I don't need MySQL either. I already set up a custom password file that Dovecot uses for authentication and I can login to POP3 with SSL. I can see from the logs that Postfix is delivering to the system user accounts (the catch-all), instead of the virtual users that I set up in Dovecot. The SMTP + SSL authentication seems to work also. I can also see from the logs that Dovecot is checking the correct virtual mail folder. I just need to figure out how to get Postfix to deliver to the virtual mail boxes. I have the following which I believe are relevant. Let me know what other settings you need to see: alias_maps = hash:/etc/aliases mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mydomain = xxx.com myhostname = mail.xxx.com mynetworks = 99.99.99.99, 99.99.99.99 myorigin = $mydomain relay_domains = $mydestination, xxx.com, domain2.net, domain3.com sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtpd_recipient_restrictions = reject_non_fqdn_sender reject_non_fqdn_recipient reject_unknown_recipient_domain permit_sasl_authenticated check_relay_domains smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth smtpd_sasl_type = dovecot smtpd_sender_restrictions = check_sender_mx_access cidr:/etc/postfix/bogus_mx reject_invalid_hostname reject_unknown_sender_domain reject_non_fqdn_sender virtual_mailbox_base = /var/spool/vmail virtual_mailbox_domains = xxx.com, domain2.net, domain3.com virtual_minimum_uid = 444 Postfix master.cf: submission inet n - - - - smtpd -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_sasl_type=dovecot -o smtpd_sasl_path=private/auth -o smtpd_sasl_security_options=noanonymous -o smtpd_sasl_local_domain=$myhostname -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_login_maps=hash:/etc/postfix/virtual -o smtpd_sender_restrictions=reject_sender_login_mismatch -o smtpd_recipient_restrictions=reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject Dovecot related: mail_location = maildir:~/Maildir passdb { args = /etc/dovecot/users.conf driver = passwd-file } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0660 user = postfix } } The virtual mail user: vmail:x:444:99:virtual mail users:/var/spool/vmail:/sbin/nologin Here is the /var/log/maillog when I try to send something to myself: Oct 25 22:10:05 308321 postfix/smtpd[2200]: connect from user-999.cable.mindspring.com[99.99.99.99] Oct 25 22:10:05 308321 postfix/smtpd[2200]: D224BD4753: client=user-999.cable.mindspring.com[99.99.99.99], sasl_method=LOGIN, sasl_username=info@xxx.com Oct 25 22:10:06 308321 postfix/cleanup[2207]: D224BD4753: message-id=<7DC3C163CFFC483AB6226F8D3D9969D2@dumbopc> Oct 25 22:10:06 308321 postfix/qmgr[2168]: D224BD4753: from=<[email protected]>, size=1385, nrcpt=1 (queue active) Oct 25 22:10:06 308321 postfix/smtpd[2200]: disconnect from user-999.cable.mindspring.com[99.99.99.99] Oct 25 22:10:06 308321 postfix/local[2208]: D224BD4753: to=<[email protected]>, orig_to=<[email protected]>, relay=local, delay=1.1, delays=0.53/0.02/0/0.51, dsn=2.0.0, status=sent (delivered to mailbox) Oct 25 22:10:06 308321 postfix/qmgr[2168]: D224BD4753: removed

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• Problems set-up Single Sign-On using Kerberos authentication

  - by user1124133

  I need for Ruby on Rail application set authentication via Active Directory using Kerberos authentication. Some technical information: I are using Apache installed mod_auth_kerb In httpd.conf I added LoadModule auth_kerb_module modules/mod_auth_kerb.so In /etc/krb5.conf I added following configuration [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = EU.ORG.COM dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h forwardable = yes [realms] EU.ORG.COM = { kdc = eudc05.eu.org.com:88 admin_server = eudc05.eu.org.com:749 default_domain = eu.org.com } [domain_realm] .eu.org.com = EU.ORG.COM eu.org.com = EU.ORG.COM [appdefaults] pam = { debug = true ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false } When I test kinit validuser and enter password then authentication is successful. klist returns: Ticket cache: FILE:/tmp/krb5cc_600 Default principal: [email protected].COM Valid starting Expires Service principal 02/08/13 13:46:40 02/08/13 23:46:47 krbtgt/[email protected].COM renew until 02/09/13 13:46:40 Kerberos 4 ticket cache: /tmp/tkt600 klist: You have no tickets cached In application Apache configuration I added IfModule mod_auth_kerb.c> Location /winlogin> AuthType Kerberos AuthName "Kerberos Loginsss" KrbMethodNegotiate off KrbAuthoritative on KrbVerifyKDC off KrbAuthRealms EU.ORG.COM Krb5Keytab /home/crmdata/httpd/apache.keytab KrbSaveCredentials off Require valid-user </Location> </IfModule> I restarted apache Now some tests: When I try to access application from Win7, I got pop-up message box, with text: Warning: This server is requesting that your username and password be sent in an insecure manner (basic authentification without a secure connection) When I enter valid credentials then my application opens successfully, and all works fine. Questions: Is ok that for user pop-ups such windows? If I use NTLM authentication then there no such pop-up. I checked IE Internet Options and there 'Enable Integrated Windows Authentication' is checked. Why IE try to send username and password to application apache? If I correct to understand then Windows self must make authentication via Active Directory using Kerberos protocol. When I try to access application from Win7 and I enter incorrect credentials to pop-up message box Application say Authentication failed (this is OK) In apache error log I see: [error] [client 192.168.56.1] krb5_get_init_creds_password() failed: Client not found in Kerberos database But now I cannot get possibility to enter valid credentials, only when I restart IE I can get again pop-up box. What could be incorrect or missing in my Kerberos setup? I read in some blog post that probably something is needed to be done in Active Directory side. What exactly?

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• NGINX rewrite rules help. Redirect not working and want to get rid of index.php in urls

  - by Tamerax

  hey! I have 2 questions for nginx users. 1) I'm trying to setup my joomla server onto my new linode running NGINX and after much (like days) of searching and testing, I finally have a config that works with with SEF url plugins...sorta. I was using an apache system on the old server and it used mod_rewrite and life was fine in terms of SEF. Since NGINX doesn't have mod_rewrite, I found something that works BUT it constantly leaves index.php in the urls. ex: http://mysite.com/index.php/forum i want it to be just http://mysite.com/forum but without mod_rewrite it doesn't seem to be possible in joomla that i'm aware of. I know in wordpress it IS possible but I have to use a plugin. Here is my config file: server { listen 80; server_name mysite.com www.mysite.com; access_log /home/public_html/mysite.com/log/access.log; error_log /home/public_html/mysite.com/log/error.log; root /home/public_html/mysite.com/public/; large_client_header_buffers 4 8k; # prevent some 400 errors index index.php index.html; fastcgi_index index.php; location / { expires 30d; error_page 404 = @joomla; log_not_found off; } # Rewrite location @joomla { rewrite ^(.*)$ /index.php?q=last; } # Static Files location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico)$ { access_log off; expires 30d; } # PHP location ~ \.php { keepalive_timeout 0; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include /usr/local/nginx/conf/fastcgi_params; fastcgi_param SCRIPT_FILENAME /home/public_html/mysite.com/public /$fastcgi_script_name; } } 2) second question should be easy but i can't get it to work. I want to use the same config I posted above and have either mysite.com or www.mysite.com both forward to mysite.com/portal. Basically when you hit up the front page with or without the www, it all gets forwarded to a sub directory on the server I called Portal. I have tried several variations of: rewrite ^/(.*) http://www.example.com/portal/$1 permanent; but it usually ends with firefox telling me there is some crazy loop happening the address bar saying something like mysite.com/portalportalportalportalportal.........on and on. So, any help on either of these issues would be awesome!! Thanks!!

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• Reach self hosted server from LAN

  - by Freefri

  I have a self hosted server with Apache2 pointed with the domain example.com. I have also some virtual servers www.example.com, cloud.examle.com, etc. This server is in my LAN, and when I try to acces to my server within the lan throw www.examle.com y get my router's configuration page. From outside the LAN www.example.com and cloud.examle.com works properly. From inside the LAN 192.168.1.33 (server internal IP) shows the default webpage (www.examle.com), but I can not get cloud.examle.com I also have a LAN name server in 192.168.1.33 with bind9. I set up my gateway 192.168.1.1 with my LAN-NS as primary NS I solve this problem creating a new dns zone in the NS. This are my config files: ;ZONE-1 $ORIGIN . $TTL 86400 ; 1 day home.lan. IN SOA server.home.lan. hostmaster.home.lan. ( 2008080901 ; serial 8H ; refresh 4H ; retry 4W ; expire 1D ; minimum ) home.lan. IN NS server.home.lan. $ORIGIN home.lan. ; Set the address for localhost.home.lan localhost IN A 127.0.0.1 router IN A 192.168.1.1 server IN A 192.168.1.33 mypc IN A 192.168.1.132 ;ZONE-2 $ORIGIN . $TTL 86400 ; 1 day example.com. IN SOA www.example.com hostmaster.home.lan. ( 2008080902 ; serial 8H ; refresh 4H ; retry 4W ; expire 1D ; minimum ) example.com. IN NS 192.168.1.33 $ORIGIN examle.com. localhost IN A 127.0.0.1 www IN A 192.168.1.33 cloud IN A 192.168.1.33 My DNS and my names are working properly now My question are: What do you think about my solution? Can I change the A zone with CNAME to server.home.lan (this is the domain in the LAN to the server)? How can I set a default IP for all my whatever.example.com?

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• Beginner server local installation

  - by joanjgm

  Here's the thing I own a small business and currently my emails are being managed by some regular hosting using cpanel and that I bought a small server and installed windows server and exchange Can you tell what I did wrong here Installed and configured my current existing domain Configured all email address Installed noip in case my public address change In the cpanel of the domain I've added an MX record to the noip domain of the server with priority 0 so now emails are being received by my own server Now whenever I send an email to anyone gmail hotmail etc I get a response that cannot be delivered since may be junk This didn't happen when I sent emails from the hosting What's missing what did I do wrong heres the code mx.google.com rejected your message to the following e-mail addresses: Joan J. Guerra Makaren ([email protected]) mx.google.com gave this error: [186.88.202.13 12] Our system has detected that this message is likely unsolicited mail. To reduce the amount of spam sent to Gmail, this message has been blocked. Please visit http://support.google.com/mail/bin/answer.py?hl=en&answer=188131 for more information. cn9si815432vcb.71 - gsmtp Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery. Diagnostic information for administrators: Generating server: SERVERMEGA.megaconstrucciones.com.ve joanjgm23@gmail.com mx.google.com #550-5.7.1 [186.88.202.13 12] Our system has detected that this message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1 http://support.google.com/mail/bin/answer.py?hl=en&answer=188131 for 550 5.7.1 more information. cn9si815432vcb.71 - gsmtp ## Original message headers: Received: from SERVERMEGA.megaconstrucciones.com.ve ([fe80::9096:e9c2:405b:6112]) by SERVERMEGA.megaconstrucciones.com.ve ([fe80::9096:e9c2:405b:6112%10]) with mapi; Thu, 29 May 2014 11:32:19 -0430 From: prueba <prueba@megaconstrucciones.com.ve> To: "Joan J. Guerra Makaren" <[email protected]> Subject: Probando correos Thread-Topic: Probando correos Thread-Index: Ac97V1eW4OBFmoqJTRGoD7IPTC2azg== Date: Thu, 29 May 2014 16:04:35 +0000 Message-ID: <000f4249.4487966276f7b241@megaconstrucciones.com.ve> Accept-Language: en-US, es-VE Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: multipart/alternative; boundary="_000_000f42494487966276f7b241megaconstruccionescomve_" MIME-Version: 1.0

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• More CPU cores may not always lead to better performance – MAXDOP and query memory distribution in spotlight

  - by sqlworkshops

  More hardware normally delivers better performance, but there are exceptions where it can hinder performance. Understanding these exceptions and working around it is a major part of SQL Server performance tuning.   When a memory allocating query executes in parallel, SQL Server distributes memory to each task that is executing part of the query in parallel. In our example the sort operator that executes in parallel divides the memory across all tasks assuming even distribution of rows. Common memory allocating queries are that perform Sort and do Hash Match operations like Hash Join or Hash Aggregation or Hash Union.   In reality, how often are column values evenly distributed, think about an example; are employees working for your company distributed evenly across all the Zip codes or mainly concentrated in the headquarters? What happens when you sort result set based on Zip codes? Do all products in the catalog sell equally or are few products hot selling items?   One of my customers tested the below example on a 24 core server with various MAXDOP settings and here are the results:MAXDOP 1: CPU time = 1185 ms, elapsed time = 1188 msMAXDOP 4: CPU time = 1981 ms, elapsed time = 1568 msMAXDOP 8: CPU time = 1918 ms, elapsed time = 1619 msMAXDOP 12: CPU time = 2367 ms, elapsed time = 2258 msMAXDOP 16: CPU time = 2540 ms, elapsed time = 2579 msMAXDOP 20: CPU time = 2470 ms, elapsed time = 2534 msMAXDOP 0: CPU time = 2809 ms, elapsed time = 2721 ms - all 24 cores.In the above test, when the data was evenly distributed, the elapsed time of parallel query was always lower than serial query.   Why does the query get slower and slower with more CPU cores / higher MAXDOP? Maybe you can answer this question after reading the article; let me know: rmeyyappan@sqlworkshops.com.   Well you get the point, let’s see an example.   The best way to learn is to practice. To create the below tables and reproduce the behavior, join the mailing list by using this link: www.sqlworkshops.com/ml and I will send you the table creation script.   Let’s update the Employees table with 49 out of 50 employees located in Zip code 2001. update Employees set Zip = EmployeeID / 400 + 1 where EmployeeID % 50 = 1 update Employees set Zip = 2001 where EmployeeID % 50 != 1 go update statistics Employees with fullscan go   Let’s create the temporary table #FireDrill with all possible Zip codes. drop table #FireDrill go create table #FireDrill (Zip int primary key) insert into #FireDrill select distinct Zip from Employees update statistics #FireDrill with fullscan go  Let’s execute the query serially with MAXDOP 1. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --First serially with MAXDOP 1 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 1) goThe query took 1011 ms to complete.   The execution plan shows the 77816 KB of memory was granted while the estimated rows were 799624.  No Sort Warnings in SQL Server Profiler.  Now let’s execute the query in parallel with MAXDOP 0. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --In parallel with MAXDOP 0 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 0) go The query took 1912 ms to complete.  The execution plan shows the 79360 KB of memory was granted while the estimated rows were 799624.  The estimated number of rows between serial and parallel plan are the same. The parallel plan has slightly more memory granted due to additional overhead. Sort properties shows the rows are unevenly distributed over the 4 threads.   Sort Warnings in SQL Server Profiler.   Intermediate Summary: The reason for the higher duration with parallel plan was sort spill. This is due to uneven distribution of employees over Zip codes, especially concentration of 49 out of 50 employees in Zip code 2001. Now let’s update the Employees table and distribute employees evenly across all Zip codes.   update Employees set Zip = EmployeeID / 400 + 1 go update statistics Employees with fullscan go  Let’s execute the query serially with MAXDOP 1. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --Serially with MAXDOP 1 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 1) go   The query took 751 ms to complete.  The execution plan shows the 77816 KB of memory was granted while the estimated rows were 784707.  No Sort Warnings in SQL Server Profiler.   Now let’s execute the query in parallel with MAXDOP 0. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --In parallel with MAXDOP 0 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 0) go The query took 661 ms to complete.  The execution plan shows the 79360 KB of memory was granted while the estimated rows were 784707.  Sort properties shows the rows are evenly distributed over the 4 threads. No Sort Warnings in SQL Server Profiler.    Intermediate Summary: When employees were distributed unevenly, concentrated on 1 Zip code, parallel sort spilled while serial sort performed well without spilling to tempdb. When the employees were distributed evenly across all Zip codes, parallel sort and serial sort did not spill to tempdb. This shows uneven data distribution may affect the performance of some parallel queries negatively. For detailed discussion of memory allocation, refer to webcasts available at www.sqlworkshops.com/webcasts.     Some of you might conclude from the above execution times that parallel query is not faster even when there is no spill. Below you can see when we are joining limited amount of Zip codes, parallel query will be fasted since it can use Bitmap Filtering.   Let’s update the Employees table with 49 out of 50 employees located in Zip code 2001. update Employees set Zip = EmployeeID / 400 + 1 where EmployeeID % 50 = 1 update Employees set Zip = 2001 where EmployeeID % 50 != 1 go update statistics Employees with fullscan go  Let’s create the temporary table #FireDrill with limited Zip codes. drop table #FireDrill go create table #FireDrill (Zip int primary key) insert into #FireDrill select distinct Zip       from Employees where Zip between 1800 and 2001 update statistics #FireDrill with fullscan go  Let’s execute the query serially with MAXDOP 1. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --Serially with MAXDOP 1 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 1) go The query took 989 ms to complete.  The execution plan shows the 77816 KB of memory was granted while the estimated rows were 785594. No Sort Warnings in SQL Server Profiler.  Now let’s execute the query in parallel with MAXDOP 0. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --In parallel with MAXDOP 0 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 0) go The query took 1799 ms to complete.  The execution plan shows the 79360 KB of memory was granted while the estimated rows were 785594.  Sort Warnings in SQL Server Profiler.    The estimated number of rows between serial and parallel plan are the same. The parallel plan has slightly more memory granted due to additional overhead.  Intermediate Summary: The reason for the higher duration with parallel plan even with limited amount of Zip codes was sort spill. This is due to uneven distribution of employees over Zip codes, especially concentration of 49 out of 50 employees in Zip code 2001.   Now let’s update the Employees table and distribute employees evenly across all Zip codes. update Employees set Zip = EmployeeID / 400 + 1 go update statistics Employees with fullscan go Let’s execute the query serially with MAXDOP 1. --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --Serially with MAXDOP 1 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 1) go The query took 250  ms to complete.  The execution plan shows the 9016 KB of memory was granted while the estimated rows were 79973.8.  No Sort Warnings in SQL Server Profiler.  Now let’s execute the query in parallel with MAXDOP 0.  --Example provided by www.sqlworkshops.com --Execute query with uneven Zip code distribution --In parallel with MAXDOP 0 set statistics time on go declare @EmployeeID int, @EmployeeName varchar(48),@zip int select @EmployeeName = e.EmployeeName, @zip = e.Zip from Employees e       inner join #FireDrill fd on (e.Zip = fd.Zip)       order by e.Zip option (maxdop 0) go The query took 85 ms to complete.  The execution plan shows the 13152 KB of memory was granted while the estimated rows were 784707.  No Sort Warnings in SQL Server Profiler.    Here you see, parallel query is much faster than serial query since SQL Server is using Bitmap Filtering to eliminate rows before the hash join.   Parallel queries are very good for performance, but in some cases it can hinder performance. If one identifies the reason for these hindrances, then it is possible to get the best out of parallelism. I covered many aspects of monitoring and tuning parallel queries in webcasts (www.sqlworkshops.com/webcasts) and articles (www.sqlworkshops.com/articles). I suggest you to watch the webcasts and read the articles to better understand how to identify and tune parallel query performance issues.   Summary: One has to avoid sort spill over tempdb and the chances of spills are higher when a query executes in parallel with uneven data distribution. Parallel query brings its own advantage, reduced elapsed time and reduced work with Bitmap Filtering. So it is important to understand how to avoid spills over tempdb and when to execute a query in parallel.   I explain these concepts with detailed examples in my webcasts (www.sqlworkshops.com/webcasts), I recommend you to watch them. The best way to learn is to practice. To create the above tables and reproduce the behavior, join the mailing list at www.sqlworkshops.com/ml and I will send you the relevant SQL Scripts.   Register for the upcoming 3 Day Level 400 Microsoft SQL Server 2008 and SQL Server 2005 Performance Monitoring & Tuning Hands-on Workshop in London, United Kingdom during March 15-17, 2011, click here to register / Microsoft UK TechNet.These are hands-on workshops with a maximum of 12 participants and not lectures. For consulting engagements click here.   Disclaimer and copyright information:This article refers to organizations and products that may be the trademarks or registered trademarks of their various owners. Copyright of this article belongs to R Meyyappan / www.sqlworkshops.com. You may freely use the ideas and concepts discussed in this article with acknowledgement (www.sqlworkshops.com), but you may not claim any of it as your own work. This article is for informational purposes only; you use any of the suggestions given here entirely at your own risk.   Register for the upcoming 3 Day Level 400 Microsoft SQL Server 2008 and SQL Server 2005 Performance Monitoring & Tuning Hands-on Workshop in London, United Kingdom during March 15-17, 2011, click here to register / Microsoft UK TechNet.These are hands-on workshops with a maximum of 12 participants and not lectures. For consulting engagements click here.   R Meyyappan rmeyyappan@sqlworkshops.com LinkedIn: http://at.linkedin.com/in/rmeyyappan  

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• 10 Essential Tools for building ASP.NET Websites

  - by Stephen Walther

  I recently put together a simple public website created with ASP.NET for my company at Superexpert.com. I was surprised by the number of free tools that I ended up using to put together the website. Therefore, I thought it would be interesting to create a list of essential tools for building ASP.NET websites. These tools work equally well with both ASP.NET Web Forms and ASP.NET MVC. Performance Tools After reading Steve Souders two (very excellent) books on front-end website performance High Performance Web Sites and Even Faster Web Sites, I have been super sensitive to front-end website performance. According to Souders’ Performance Golden Rule: “Optimize front-end performance first, that's where 80% or more of the end-user response time is spent” You can use the tools below to reduce the size of the images, JavaScript files, and CSS files used by an ASP.NET application. 1. Sprite and Image Optimization Framework CSS sprites were first described in an article written for A List Apart entitled CSS sprites: Image Slicing’s Kiss of Death. When you use sprites, you combine multiple images used by a website into a single image. Next, you use CSS trickery to display particular sub-images from the combined image in a webpage. The primary advantage of sprites is that they reduce the number of requests required to display a webpage. Requesting a single large image is faster than requesting multiple small images. In general, the more resources – images, JavaScript files, CSS files – that must be moved across the wire, the slower your website. However, most people avoid using sprites because they require a lot of work. You need to combine all of the images and write just the right CSS rules to display the sub-images. The Microsoft Sprite and Image Optimization Framework enables you to avoid all of this work. The framework combines the images for you automatically. Furthermore, the framework includes an ASP.NET Web Forms control and an ASP.NET MVC helper that makes it easy to display the sub-images. You can download the Sprite and Image Optimization Framework from CodePlex at http://aspnet.codeplex.com/releases/view/50869. The Sprite and Image Optimization Framework was written by Morgan McClean who worked in the office next to mine at Microsoft. Morgan was a scary smart Intern from Canada and we discussed the Framework while he was building it (I was really excited to learn that he was working on it). Morgan added some great advanced features to this framework. For example, the Sprite and Image Optimization Framework supports something called image inlining. When you use image inlining, the actual image is stored in the CSS file. Here’s an example of what image inlining looks like: .Home_StephenWalther_small-jpg { width:75px; height:100px; background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEsAAABkCAIAAABB1lpeAAAAB GdBTUEAALGOfPtRkwAAACBjSFJNAACHDwAAjA8AAP1SAACBQAAAfXkAAOmLAAA85QAAGcxzPIV3AAAKL s+zNfREAAAAASUVORK5CYII=) no-repeat 0% 0%; } The actual image (in this case a picture of me that is displayed on the home page of the Superexpert.com website) is stored in the CSS file. If you visit the Superexpert.com website then very few separate images are downloaded. For example, all of the images with a red border in the screenshot below take advantage of CSS sprites: Unfortunately, there are some significant Gotchas that you need to be aware of when using the Sprite and Image Optimization Framework. There are workarounds for these Gotchas. I plan to write about these Gotchas and workarounds in a future blog entry. 2. Microsoft Ajax Minifier Whenever possible you should combine, minify, compress, and cache with a far future header all of your JavaScript and CSS files. The Microsoft Ajax Minifier makes it easy to minify JavaScript and CSS files. Don’t confuse minification and compression. You need to do both. According to Souders, you can reduce the size of a JavaScript file by an additional 20% (on average) by minifying a JavaScript file after you compress the file. When you minify a JavaScript or CSS file, you use various tricks to reduce the size of the file before you compress the file. For example, you can minify a JavaScript file by replacing long JavaScript variables names with short variables names and removing unnecessary white space and comments. You can minify a CSS file by doing such things as replacing long color names such as #ffffff with shorter equivalents such as #fff. The Microsoft Ajax Minifier was created by Microsoft employee Ron Logan. Internally, this tool was being used by several large Microsoft websites. We also used the tool heavily on the ASP.NET team. I convinced Ron to publish the tool on CodePlex so that everyone in the world could take advantage of it. You can download the tool from the ASP.NET Ajax website and read documentation for the tool here. I created the installer for the Microsoft Ajax Minifier. When creating the installer, I also created a Visual Studio build task to make it easy to minify all of your JavaScript and CSS files whenever you do a build within Visual Studio automatically. Read the Ajax Minifier Quick Start to learn how to configure the build task. 3. ySlow The ySlow tool is a free add-on for Firefox created by Yahoo that enables you to test the front-end of your website. For example, here are the current test results for the Superexpert.com website: The Superexpert.com website has an overall score of B (not perfect but not bad). The ySlow tool is not perfect. For example, the Superexpert.com website received a failing grade of F for not using a Content Delivery Network even though the website using the Microsoft Ajax Content Delivery Network for JavaScript files such as jQuery. Uptime After publishing a website live to the world, you want to ensure that the website does not encounter any issues and that it stays live. I use the following tools to monitor the Superexpert.com website now that it is live. 4. ELMAH ELMAH stands for Error Logging Modules and Handlers for ASP.NET. ELMAH enables you to record any errors that happen at your website so you can review them in the future. You can download ELMAH for free from the ELMAH project website. ELMAH works great with both ASP.NET Web Forms and ASP.NET MVC. You can configure ELMAH to store errors in a number of different stores including XML files, the Event Log, an Access database, a SQL database, an Oracle database, or in computer RAM. You also can configure ELMAH to email error messages to you when they happen. By default, you can access ELMAH by requesting the elmah.axd page from a website with ELMAH installed. Here’s what the elmah page looks like from the Superexpert.com website (this page is password-protected because secret information can be revealed in an error message): If you click on a particular error message, you can view the original Yellow Screen ASP.NET error message (even when the error message was never displayed to the actual user). I installed ELMAH by taking advantage of the new package manager for ASP.NET named NuGet (originally named NuPack). You can read the details about NuGet in the following blog entry by Scott Guthrie. You can download NuGet from CodePlex. 5. Pingdom I use Pingdom to verify that the Superexpert.com website is always up. You can sign up for Pingdom by visiting Pingdom.com. You can use Pingdom to monitor a single website for free. At the Pingdom website, you configure the frequency that your website gets pinged. I verify that the Superexpert.com website is up every 5 minutes. I have the Pingdom service verify that it can retrieve the string “Contact Us” from the website homepage. If your website goes down, you can configure Pingdom so that it sends an email, Twitter, SMS, or iPhone alert. I use the Pingdom iPhone app which looks like this: 6. Host Tracker If your website does go down then you need some way of determining whether it is a problem with your local network or if your website is down for everyone. I use a website named Host-Tracker.com to check how badly a website is down. Here’s what the Host-Tracker website displays for the Superexpert.com website when the website can be successfully pinged from everywhere in the world: Notice that Host-Tracker pinged the Superexpert.com website from 68 locations including Roubaix, France and Scranton, PA. Debugging I mean debugging in the broadest possible sense. I use the following tools when building a website to verify that I have not made a mistake. 7. HTML Spell Checker Why doesn’t Visual Studio have a built-in spell checker? Don’t know – I’ve always found this mysterious. Fortunately, however, a former member of the ASP.NET team wrote a free spell checker that you can use with your ASP.NET pages. I find a spell checker indispensible. It is easy to delude yourself that you are capable of perfect spelling. I’m always super embarrassed when I actually run the spell checking tool and discover all of my spelling mistakes. The fastest way to add the HTML Spell Checker extension to Visual Studio is to select the menu option Tools, Extension Manager within Visual Studio. Click on Online Gallery and search for HTML Spell Checker: 8. IIS SEO Toolkit If people cannot find your website through Google then you should not even bother to create it. Microsoft has a great extension for IIS named the IIS Search Engine Optimization Toolkit that you can use to identify issue with your website that would hurt its page rank. You also can use this tool to quickly create a sitemap for your website that you can submit to Google or Bing. You can even generate the sitemap for an ASP.NET MVC website. Here’s what the report overview for the Superexpert.com website looks like: Notice that the Sueprexpert.com website had plenty of violations. For example, there are 65 cases in which a page has a broken hyperlink. You can drill into these violations to identity the exact page and location where these violations occur. 9. LinqPad If your ASP.NET website accesses a database then you should be using LINQ to Entities with the Entity Framework. Using LINQ involves some magic. LINQ queries written in C# get converted into SQL queries for you. If you are not careful about how you write your LINQ queries, you could unintentionally build a really badly performing website. LinqPad is a free tool that enables you to experiment with your LINQ queries. It even works with Microsoft SQL CE 4 and Azure. You can use LinqPad to execute a LINQ to Entities query and see the results. You also can use it to see the resulting SQL that gets executed against the database: 10. .NET Reflector I use .NET Reflector daily. The .NET Reflector tool enables you to take any assembly and disassemble the assembly into C# or VB.NET code. You can use .NET Reflector to see the “Source Code” of an assembly even when you do not have the actual source code. You can download a free version of .NET Reflector from the Redgate website. I use .NET Reflector primarily to help me understand what code is doing internally. For example, I used .NET Reflector with the Sprite and Image Optimization Framework to better understand how the MVC Image helper works. Here’s part of the disassembled code from the Image helper class: Summary In this blog entry, I’ve discussed several of the tools that I used to create the Superexpert.com website. These are tools that I use to improve the performance, improve the SEO, verify the uptime, or debug the Superexpert.com website. All of the tools discussed in this blog entry are free. Furthermore, all of these tools work with both ASP.NET Web Forms and ASP.NET MVC. Let me know if there are any tools that you use daily when building ASP.NET websites.

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• Plan Caching and Query Memory Part II (Hash Match) – When not to use stored procedure - Most common performance mistake SQL Server developers make.

  - by sqlworkshops

  SQL Server estimates Memory requirement at compile time, when stored procedure or other plan caching mechanisms like sp_executesql or prepared statement are used, the memory requirement is estimated based on first set of execution parameters. This is a common reason for spill over tempdb and hence poor performance. Common memory allocating queries are that perform Sort and do Hash Match operations like Hash Join or Hash Aggregation or Hash Union. This article covers Hash Match operations with examples. It is recommended to read Plan Caching and Query Memory Part I before this article which covers an introduction and Query memory for Sort. In most cases it is cheaper to pay for the compilation cost of dynamic queries than huge cost for spill over tempdb, unless memory requirement for a query does not change significantly based on predicates.   This article covers underestimation / overestimation of memory for Hash Match operation. Plan Caching and Query Memory Part I covers underestimation / overestimation for Sort. It is important to note that underestimation of memory for Sort and Hash Match operations lead to spill over tempdb and hence negatively impact performance. Overestimation of memory affects the memory needs of other concurrently executing queries. In addition, it is important to note, with Hash Match operations, overestimation of memory can actually lead to poor performance.   To read additional articles I wrote click here.   The best way to learn is to practice. To create the below tables and reproduce the behavior, join the mailing list by using this link: www.sqlworkshops.com/ml and I will send you the table creation script. Most of these concepts are also covered in our webcasts: www.sqlworkshops.com/webcasts  Let’s create a Customer’s State table that has 99% of customers in NY and the rest 1% in WA.Customers table used in Part I of this article is also used here.To observe Hash Warning, enable 'Hash Warning' in SQL Profiler under Events 'Errors and Warnings'. --Example provided by www.sqlworkshops.com drop table CustomersState go create table CustomersState (CustomerID int primary key, Address char(200), State char(2)) go insert into CustomersState (CustomerID, Address) select CustomerID, 'Address' from Customers update CustomersState set State = 'NY' where CustomerID % 100 != 1 update CustomersState set State = 'WA' where CustomerID % 100 = 1 go update statistics CustomersState with fullscan go   Let’s create a stored procedure that joins customers with CustomersState table with a predicate on State. --Example provided by www.sqlworkshops.com create proc CustomersByState @State char(2) as begin declare @CustomerID int select @CustomerID = e.CustomerID from Customers e inner join CustomersState es on (e.CustomerID = es.CustomerID) where es.State = @State option (maxdop 1) end go  Let’s execute the stored procedure first with parameter value ‘WA’ – which will select 1% of data. set statistics time on go --Example provided by www.sqlworkshops.com exec CustomersByState 'WA' goThe stored procedure took 294 ms to complete.  The stored procedure was granted 6704 KB based on 8000 rows being estimated.  The estimated number of rows, 8000 is similar to actual number of rows 8000 and hence the memory estimation should be ok.  There was no Hash Warning in SQL Profiler. To observe Hash Warning, enable 'Hash Warning' in SQL Profiler under Events 'Errors and Warnings'.   Now let’s execute the stored procedure with parameter value ‘NY’ – which will select 99% of data. -Example provided by www.sqlworkshops.com exec CustomersByState 'NY' go  The stored procedure took 2922 ms to complete.   The stored procedure was granted 6704 KB based on 8000 rows being estimated.    The estimated number of rows, 8000 is way different from the actual number of rows 792000 because the estimation is based on the first set of parameter value supplied to the stored procedure which is ‘WA’ in our case. This underestimation will lead to spill over tempdb, resulting in poor performance.   There was Hash Warning (Recursion) in SQL Profiler. To observe Hash Warning, enable 'Hash Warning' in SQL Profiler under Events 'Errors and Warnings'.   Let’s recompile the stored procedure and then let’s first execute the stored procedure with parameter value ‘NY’.  In a production instance it is not advisable to use sp_recompile instead one should use DBCC FREEPROCCACHE (plan_handle). This is due to locking issues involved with sp_recompile, refer to our webcasts, www.sqlworkshops.com/webcasts for further details.   exec sp_recompile CustomersByState go --Example provided by www.sqlworkshops.com exec CustomersByState 'NY' go  Now the stored procedure took only 1046 ms instead of 2922 ms.   The stored procedure was granted 146752 KB of memory. The estimated number of rows, 792000 is similar to actual number of rows of 792000. Better performance of this stored procedure execution is due to better estimation of memory and avoiding spill over tempdb.   There was no Hash Warning in SQL Profiler.   Now let’s execute the stored procedure with parameter value ‘WA’. --Example provided by www.sqlworkshops.com exec CustomersByState 'WA' go  The stored procedure took 351 ms to complete, higher than the previous execution time of 294 ms.    This stored procedure was granted more memory (146752 KB) than necessary (6704 KB) based on parameter value ‘NY’ for estimation (792000 rows) instead of parameter value ‘WA’ for estimation (8000 rows). This is because the estimation is based on the first set of parameter value supplied to the stored procedure which is ‘NY’ in this case. This overestimation leads to poor performance of this Hash Match operation, it might also affect the performance of other concurrently executing queries requiring memory and hence overestimation is not recommended.     The estimated number of rows, 792000 is much more than the actual number of rows of 8000.  Intermediate Summary: This issue can be avoided by not caching the plan for memory allocating queries. Other possibility is to use recompile hint or optimize for hint to allocate memory for predefined data range.Let’s recreate the stored procedure with recompile hint. --Example provided by www.sqlworkshops.com drop proc CustomersByState go create proc CustomersByState @State char(2) as begin declare @CustomerID int select @CustomerID = e.CustomerID from Customers e inner join CustomersState es on (e.CustomerID = es.CustomerID) where es.State = @State option (maxdop 1, recompile) end go  Let’s execute the stored procedure initially with parameter value ‘WA’ and then with parameter value ‘NY’. --Example provided by www.sqlworkshops.com exec CustomersByState 'WA' go exec CustomersByState 'NY' go  The stored procedure took 297 ms and 1102 ms in line with previous optimal execution times.   The stored procedure with parameter value ‘WA’ has good estimation like before.   Estimated number of rows of 8000 is similar to actual number of rows of 8000.   The stored procedure with parameter value ‘NY’ also has good estimation and memory grant like before because the stored procedure was recompiled with current set of parameter values.  Estimated number of rows of 792000 is similar to actual number of rows of 792000.    The compilation time and compilation CPU of 1 ms is not expensive in this case compared to the performance benefit.   There was no Hash Warning in SQL Profiler.   Let’s recreate the stored procedure with optimize for hint of ‘NY’. --Example provided by www.sqlworkshops.com drop proc CustomersByState go create proc CustomersByState @State char(2) as begin declare @CustomerID int select @CustomerID = e.CustomerID from Customers e inner join CustomersState es on (e.CustomerID = es.CustomerID) where es.State = @State option (maxdop 1, optimize for (@State = 'NY')) end go  Let’s execute the stored procedure initially with parameter value ‘WA’ and then with parameter value ‘NY’. --Example provided by www.sqlworkshops.com exec CustomersByState 'WA' go exec CustomersByState 'NY' go  The stored procedure took 353 ms with parameter value ‘WA’, this is much slower than the optimal execution time of 294 ms we observed previously. This is because of overestimation of memory. The stored procedure with parameter value ‘NY’ has optimal execution time like before.   The stored procedure with parameter value ‘WA’ has overestimation of rows because of optimize for hint value of ‘NY’.   Unlike before, more memory was estimated to this stored procedure based on optimize for hint value ‘NY’.    The stored procedure with parameter value ‘NY’ has good estimation because of optimize for hint value of ‘NY’. Estimated number of rows of 792000 is similar to actual number of rows of 792000.   Optimal amount memory was estimated to this stored procedure based on optimize for hint value ‘NY’.   There was no Hash Warning in SQL Profiler.   This article covers underestimation / overestimation of memory for Hash Match operation. Plan Caching and Query Memory Part I covers underestimation / overestimation for Sort. It is important to note that underestimation of memory for Sort and Hash Match operations lead to spill over tempdb and hence negatively impact performance. Overestimation of memory affects the memory needs of other concurrently executing queries. In addition, it is important to note, with Hash Match operations, overestimation of memory can actually lead to poor performance.   Summary: Cached plan might lead to underestimation or overestimation of memory because the memory is estimated based on first set of execution parameters. It is recommended not to cache the plan if the amount of memory required to execute the stored procedure has a wide range of possibilities. One can mitigate this by using recompile hint, but that will lead to compilation overhead. However, in most cases it might be ok to pay for compilation rather than spilling sort over tempdb which could be very expensive compared to compilation cost. The other possibility is to use optimize for hint, but in case one sorts more data than hinted by optimize for hint, this will still lead to spill. On the other side there is also the possibility of overestimation leading to unnecessary memory issues for other concurrently executing queries. In case of Hash Match operations, this overestimation of memory might lead to poor performance. When the values used in optimize for hint are archived from the database, the estimation will be wrong leading to worst performance, so one has to exercise caution before using optimize for hint, recompile hint is better in this case.   I explain these concepts with detailed examples in my webcasts (www.sqlworkshops.com/webcasts), I recommend you to watch them. The best way to learn is to practice. To create the above tables and reproduce the behavior, join the mailing list at www.sqlworkshops.com/ml and I will send you the relevant SQL Scripts.  Register for the upcoming 3 Day Level 400 Microsoft SQL Server 2008 and SQL Server 2005 Performance Monitoring & Tuning Hands-on Workshop in London, United Kingdom during March 15-17, 2011, click here to register / Microsoft UK TechNet.These are hands-on workshops with a maximum of 12 participants and not lectures. For consulting engagements click here.   Disclaimer and copyright information:This article refers to organizations and products that may be the trademarks or registered trademarks of their various owners. Copyright of this article belongs to R Meyyappan / www.sqlworkshops.com. You may freely use the ideas and concepts discussed in this article with acknowledgement (www.sqlworkshops.com), but you may not claim any of it as your own work. This article is for informational purposes only; you use any of the suggestions given here entirely at your own risk.   R Meyyappan rmeyyappan@sqlworkshops.com LinkedIn: http://at.linkedin.com/in/rmeyyappan

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• The Cloud is STILL too slow!

  - by harry.foxwell(at)oracle.com

  If you've been in the computing industry sufficiently long enough to remember dialup modems and other "ancient" technologies, you might be tempted to marvel at today's wonderfully powerful multicore PCs, ginormous disks, and blazingly fast networks.  Wow, you're in Internet Nirvana, right!  Well, no, not by a long shot.Considering the exponentially growing expectations of what the Web, that is, "the Cloud", is supposed to provide, today's Web/Cloud services are still way too slow.Already we are seeing cloud-enabled consumer devices that are stressing even the most advanced public network services.  Like the iPad and its competitors, ever more powerful smart-phones, and an imminent hoard of special purpose gadgets such as the proposed "cloud camera" (see http://gdgt.com/discuss/it-time-cloud-camera-found-out-cnr/ ).And at the same time that the number and type of cloud services are growing, user tolerance for even the slightest of download delays is rapidly decreasing.  Ten years ago Web developers followed the "8-Second Rule", (average time a typical Web user would tolerate for a page to download and render).  Not anymore; now it's less than 3 seconds, and only a bit longer for mobile devices (see http://www.technologyreview.com/files/54902/GoogleSpeed_charts.pdf).  How spoiled we've become!Google, among others, recognizes this problem and is working to encourage the development of a faster Web (see http://www.technologyreview.com/web/32338/). They, along with their competitors and ISPs, will have to encourage and support significantly better Web performance in order to provide the types of services envisioned for the Cloud.  How will they do this? Through the development of faster components, better use of caching technologies, and the really tough one - exploiting parallelism. Not that parallel technologies like multicore processors are hard to build...we already have them.  It's just that we're not that good yet at using them effectively.  And if we don't get better, users will abandon cloud-based services...in less than 3 seconds.

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• ruby regex, parsing html

  - by danwoods

  Hello all, I'm trying to parse some returned html to look for currently playing movies. The pattern I'm trying to match looks like: <span dir=ltr>Clash of the Titans</span> Of which there are several in the returned html. (the html is huge, I've posted a sample at the bottom) I'm trying get an array of the movie titles with the following command: titles = listings_html.split(/(<span dir=ltr>).*(<\/span>)/) But I'm not getting the results I'm expecting. Can anyone see a problem with my approach or regex? Returned html (I believe the 'markdown'formating will render the some of the html, but this is just an example): <script>window.gbar={};(function(){function h(a,b,d){var c="on"+b;if(a.addEventListener)a.addEventListener(b,d,false);else if(a.attachEvent)a.attachEvent(c,d);else{var f=a[c];a[c]=function(){var e=f.apply(this,arguments),g=d.apply(this,arguments);return e==undefined?g:g==undefined?e:g&&e}}};var i=window.gbar,k,l,m;function n(a){var b=window.encodeURIComponent&&(document.forms[0].q||"").value;if(b)a.href=a.href.replace(/([?&])q=[^&]*|$/,function(d,c){return(c||"&")+"q="+encodeURIComponent(b)})}i.qs=n;function o(a,b,d,c,f,e){var g=document.getElementById(a);if(g){var j=g.style;j.left=c?"auto":b+"px";j.right=c?b+"px":"auto";j.top=d+"px";j.visibility=l?"hidden":"visible";if(f&&e){j.width=f+"px";j.height=e+"px"}else{o(k,b,d,c,g.offsetWidth,g.offsetHeight);l=l?"":a}}}i.tg=function(a){a=a||window.event;var b,d=a.target||a.srcElement;a.cancelBubble=true;if(k!=null)p(d);else{b=document.createElement(Array.every||window.createPopup?"iframe":"div");b.frameBorder="0";k=b.id="gbs";b.src="javascript:''";d.parentNode.appendChild(b);h(document,"click",i.close);p(d);i.alld&&i.alld(function(){var c=document.getElementById("gbli");if(c){var f=c.parentNode;q(f,c);var e=c.prevSibling;f.removeChild(c);i.removeExtraDelimiters(f,e);b.style.height=f.offsetHeight+"px"}})}};function r(a){var b,d=document.defaultView;if(d&&d.getComputedStyle){if(a=d.getComputedStyle(a,""))b=a.direction}else b=a.currentStyle?a.currentStyle.direction:a.style.direction;return b=="rtl"}function p(a){var b=0;if(a.className!="gb3")a=a.parentNode;var d=a.getAttribute("aria-owns")||"gbi",c=a.offsetWidth,f=a.offsetTop>20?46:24,e=false;do b+=a.offsetLeft||0;while(a=a.offsetParent);a=(document.documentElement.clientWidth||document.body.clientWidth)-b-c;c=r(document.body);if(d=="gbi"){var g=document.getElementById("gbi");q(g,document.getElementById("gbli")||g.firstChild);if(c){b=a;e=true}}else if(!c){b=a;e=true}l!=d&&i.close();o(d,b,f,e)}i.close=function(){l&&o(l,0,0)};function s(a,b,d){if(!m){m="gb2";if(i.alld){var c=i.findClassName(a);if(c)m=c}}a.insertBefore(b,d).className=m}function q(a,b){for(var d,c=window.navExtra;c&&(d=c.pop());)s(a,d,b)}i.addLink=function(a,b,d){if((b=document.getElementById(b))&&a){a.className="gb4";var c=document.createElement("span");c.appendChild(a);c.appendChild(document.createTextNode(" | "));c.id=d;b.appendChild(c)}}})();if(!window.google)window.google={};if(!window.google.movies)window.google.movies={};window.google.movies.registerFixdir=function(){var c="[\u0000- !-@[-{-\u00bf\u00d7\u00f7\u02b9-\u02ff\u2000-\u2bff]",g=new RegExp("^"+c+"([0-9]"+c+"$|[A-Za-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02b8\u0300-\u0590\u0800-\u1fff\u2c00-\ufb1c\ufdfe-\ufe6f\ufefd-\uffff])"),h=new RegExp("^"+c+"$");function e(d,a){if(!a)a=d&&d.target?d.target:window.event.srcElement;a.dir=g.test(a.value)?"ltr":(h.test(a.value)?"":"rtl")} var i=[document.getElementsByName("q")[0],document.getElementById("mtq")];for(var f=0,b;b=i[f];f++)if(b){b.onkeyup=e;e(null,b)}}; Movie Showtimes - Google Search.fl:link{}a:link,.w,a.w:link,.w a:link{color:#00c}a:visited{color:#551a8b}a:active{color:red}.t a:link,.t a:active,.t a:visited,.t{color:#000}.left{width:12em}.box{background:#fff}.nopadding{padding:0}.k{background:#36c}.z{display:none}.x{width:3em}.y{width:23em}.b{color:#00c;font-size:12pt;font-weight:bold}.i,.i:link{color:#a90a08}.n a{color:#000;font-size:10pt}.n .b a{color:#00c}.n .i{font-size:10pt;font-weight:bold}.h{cursor:pointer}body{background:#fff;font:82% Arial,Helvetica,sans-serif;margin:3px 0 0;padding:0}table{border-collapse:collapse;border-spacing:0}img{border:0}td,th{vertical-align:top}h1,h2{font-size:100%;margin:0}a{color:#00c}/ CSS for page */#title_bar{background:#f0f7f9;border-top:1px solid #6b90da;padding-bottom:4px;padding-left:8px;padding-top:4px}#google_bar{margin:3px 10px}#search_form{margin:3px 10px}#left_nav{border-right:1px solid #c9d7f1;margin-top:11px;position:absolute;left:9px;width:13.4em}#left_nav .section{margin-bottom:1.2em}.hidden{visibility:hidden}#results{height:auto !important;height:350px;margin-left:15em;min-height:350px;min-width:800px;width:expression(document.body.clientWidth<1000?"800px":"99.9%")}.name{font-size:124%;margin:0}.times{clear:both;margin:0}.address{margin:0}#movie_results{overflow:auto}.movie_results{margin-top:11px}.movie{clear:both;margin-bottom:40px}.movie .header{padding-left:8px}.movie .img{border:1px solid #ccc;float:left;margin-bottom:10px}.movie .desc{margin-bottom:15px;max-width:42em}.movie h2{font-size:124%;margin-bottom:2px}.movie .info{margin-bottom:10px}.movie .syn{margin-bottom:10px}.movie .section_title{background:#f0f7f9;clear:both;font-size:108%;margin-bottom:11px;margin-top:11px;padding-bottom:4px;padding-left:8px;padding-top:5px}.movie .showtimes{margin-bottom:8px;padding-left:8px}.movie .show_left{width:49%}.movie .show_right{width:49%}.movie .theater{padding-bottom:15px}.theater{clear:both;padding-bottom:1px}.theater_after_icon{padding-left:25px}.theater .show_left{width:49%}.theater .show_right{width:49%}.theater h2{font-size:124%;margin-bottom:2px}.theater .icon{float:left;height:3em;margin-right:5px}.theater .closure{font-size:100%}.theater .info{font-size:100%;padding-bottom:5px;padding-top:5px}.theater .movie{margin-bottom:8px;margin-right:8px;max-width:42em}.theater .movie .desc{margin-bottom:5px;margin-left:0}.theater .movie .info{margin-top:0}.theater .showtimes{margin-bottom:40px;margin-top:8px}#theater_map{right:0;left:0;position:relative;top:0}#theater_static_map{border:1px solid #c9d7f1;margin:10px}.map_marker .name{margin-top:10px}.photo{border:1px solid #ccc;margin-bottom:20px;margin-left:8px}.show_left{float:left;margin:0;width:49.999%}.show_right{float:right;margin:0;width:50%}.show_more{clear:both;font-size:124%;margin:0}.show_more a{color:#77c}.reviews{margin-bottom:8px;padding-left:8px}.review{margin-bottom:5px}.review .publisher{color:green}.review .date{color:#6f6f6f}.trailer{margin-bottom:8px;padding-left:8px}.clear{clear:both}.iconA{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 0}.iconB{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -38px}.iconC{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -76px}.iconD{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -114px}.iconE{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -152px}.iconF{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -190px}.iconG{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -228px}.iconH{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -266px}.iconI{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -304px}.iconJ{background:url(http://maps.gstatic.com/mapfiles/red_icons_A_J.png) repeat 0 -342px}.iconK{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 0}.iconL{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -38px}.iconM{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -76px}.iconN{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -114px}.iconO{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -152px}.iconP{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -190px}.iconQ{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -228px}.iconR{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -266px}.iconS{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -304px}.iconT{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -342px}.iconU{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -380px}.iconV{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -418px}.iconW{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -456px}.iconX{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -494px}.iconY{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -532px}.iconZ{background:url(http://maps.gstatic.com/mapfiles/red_icons_K_Z.png) repeat 0 -570px}#gbar,#guser{font-size:13px;padding-top:1px !important}#gbar{float:left;height:22px}#guser{padding-bottom:7px !important;text-align:right}.gbh,.gbd{border-top:1px solid #c9d7f1;font-size:1px}.gbh{height:0;position:absolute;top:24px;width:100%}#gbs,.gbm{background:#fff;left:0;position:absolute;text-align:left;visibility:hidden;z-index:1000}.gbm{border:1px solid;border-color:#c9d7f1 #36c #36c #a2bae7;z-index:1001}.gb1{margin-right:.5em}.gb1,.gb3{zoom:1}.gb2{display:block;padding:.2em .5em;}.gb2,.gb3{text-decoration:none;border-bottom:none}a.gb1,a.gb2,a.gb3,a.gb4{color:#00c !important}.gbi .gb3,.gbi .gb2,.gbi .gb4{color:#dd8e27 !important}.gbf .gb3,.gbf .gb2,.gbf .gb4{color:#900 !important}a.gb2:hover{background:#36c;color:#fff !important}Web Images Videos Maps News Shopping Gmail more ▼Books Finance Translate Scholar Blogs YouTube Calendar Photos Documents Reader Sites Groups even more » woodson.dan@gmail.com | Google Account settings | Sign out     Advanced Search  PreferencesShowtimes for Murfreesboro, TN 37130Change Location› Today › Tomorrow › Monday › Tuesday› Theaters › Movies› Show list view › Show map viewPremiere 6 Theater810 Northwest Broad Street, Murfreesboro, TN - (615) 896-4100Clash of the Titans? - 1hr 50min?? - Rated PG-13?? - Action/Adventure? - Trailer - IMDb2:10  4:15  6:15  8:20  10:25pmDiary of a Wimpy Kid? - 1hr 33min?? - Rated PG?? - Comedy/Drama? - Trailer - IMDb2:00  3:50  6:00  7:50  9:40pmHow to Train Your Dragon?1hr 38min?? - Rated PG?? - Family/Animation? - IMDb2:00  3:55  6:00  7:55  9:50pmThe Bounty Hunter? - 1hr 46min?? - Rated PG-13?? - Action/Adventure/Comedy/Romance? - Trailer - IMDb2:15  4:15  6:25  8:25  10:30pmThe Last Song? - 1hr 47min?? - Rated PG?? - Drama? - Trailer - IMDb2:20  4:15  6:30  8:35  10:35pmTyler Perry's Why Did I Get Married Too?2hr 1min?? - Rated PG-13?? - Comedy?2:20  4:35  7:30  9:45pmContinental Cinema 5450 US Highway 231 N, Troy, AL - (334) 808-4225Clash of the Titans 3D? - 1hr 50min?? - Rated PG-13?? - Action/Adventure? - IMDb1:00  4:00  7:00  9:30pmHow to Train Your Dragon 3D? - 1hr 38min?? - Rated PG?? - Family/Animation? - IMDb1:05  4:05  7:05  9:25pmThe Bounty Hunter? - 1hr 46min?? - Rated PG-13?? - Action/Adventure/Comedy/Romance? - Trailer - IMDb1:00  4:00  7:00  9:30pmThe Last Song? - 1hr 47min?? - Rated PG?? - Drama? - Trailer - IMDb1:05  4:05  7:05  9:25pmTyler Perry's Why Did I Get Married Too?2hr 1min?? - Rated PG-13?? - Comedy?12:55  3:55  6:55  9:35pmMall Cinema - Hartford KYUS Hwy 231 South 62 East, Hartford, KY - (270) 298-3315Clash of the Titans? - 1hr 50min?? - Rated PG-13?? - Action/Adventure? - Trailer - IMDb5:00  7:00  9:00pmHow to Train Your Dragon?1hr 38min?? - Rated PG?? - Family/Animation? - IMDb5:00  7:00  9:00pmCarmike Wynnsong 16 - Murfreesboro2626 Cason Square Boulevard, Murfreesboro, TN - (615) 893-2253The Last Song? - 1hr 47min?? - Rated PG?? - Drama? - Trailer - IMDb12:15  1:00  2:45  4:00  5:15  7:00  7:45 

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• Tomcat6 can't connect to MySql (The driver has not received any packets from the server)

  - by Tobias Wiesenthal

  Hi all, i'm running an Apache Tomcat 6.0.20 / MySQL 5.1.37-lubuntu / sun-java6-jdk /sun-java6-jre / sun-java6-bin on my local machine using Ubuntu 9.10 as OS. I'm trying to get a simple DB-query example running for 2 days now, but i still get this Exception: org.apache.jasper.JasperException: javax.servlet.ServletException: javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.)" org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) root cause javax.servlet.ServletException: javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.)" org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791) org.apache.jsp.index_jsp._jspService(index_jsp.java:104) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) root cause javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.)" org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(QueryTagSupport.java:285) org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(QueryTagSupport.java:168) org.apache.jsp.index_jsp._jspx_meth_sql_005fquery_005f0(index_jsp.java:274) org.apache.jsp.index_jsp._jspx_meth_c_005fotherwise_005f0(index_jsp.java:216) org.apache.jsp.index_jsp._jspx_meth_c_005fchoose_005f0(index_jsp.java:130) org.apache.jsp.index_jsp._jspService(index_jsp.java:93) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) my web.xml looks like this : <?xml version="1.0" encoding="utf-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <resource-ref> <description>DB Connection</description> <res-ref-name>jdbc/testDB</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </resource-ref> </web-app> the context.xml looks like this : <?xml version="1.0" encoding="UTF-8"?> <Context path="/my1stApp" docBase="/var/www/jsp/my1stApp" debug="5" reloadable="true" crossContext="true"> <Resource name="jdbc/testDB" auth="Container" type="javax.sql.DataSource" maxActive="5" maxIdle="5" maxWait="10000" username="user" password="password" driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/some"/> </Context> and the jsp file looks like this: <%@ page contentType="text/html" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> <%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %> <html> <head> <title>DroneLootTool</title> </head> <body bgcolor="white"> <sql:query var="res" dataSource="jdbc/testDB"> select name, othername from mytable </sql:query> <h2>Results</h2> <c:forEach var="row" items="${res.rows}"> Name ${row.name}<br/> MoreName ${row.othername}<br/><br/> </c:forEach> </body> </html> read lots of forum entries / tried lots of different settings (always changed back to original settings when it didnt' work) set TOMCAT6_SECURITY=no in /etc/default/tomcat6 because TOMCAT6_SECURITY=yes was causing trouble too the skip-networking flag is not set for the DB (BIND 127.0.0.1 is set) firewall is swiched off (sudo ufw disable) MySQL works (tested several times with user used in this skript) telnet localhost 3306 says Trying ::1... Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host. The TestConnection.java produced the following output: me@my-laptop:~/Desktop$ java -classpath '/usr/share/java/mysql.jar:./' TestConnection com.mysql.jdbc.Driver jdbc:mysql://localhost:3306/testDB myuser mypassword com.mysql.jdbc.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago. at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1070) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2103) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:718) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:298) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:185) at TestConnection.checkConnection(TestConnection.java:40) at TestConnection.main(TestConnection.java:21) Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago. at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1070) at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:666) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1069) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2031) ... 7 more Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost. at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2431) at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:590) ... 9 more Connection failed. i don't know if there is a difference between the way the java driver connects to the DB and the Perl DBI module does, but this PERL skript works #!/usr/bin/perl -w use CGI; use DBI; use strict; print CGI::header(); my $dbh = DBI->connect("dbi:mysql:some:localhost", "user", "password"); my $sSql = "SELECT * from mytable"; my $ppl = $dbh->selectall_arrayref( $sSql ); foreach my $pl (@$ppl) { my @array = @$pl; print @array; } $dbh->disconnect; enabled --log-warnings on the mysql, but i didn't get any new warnings. When i was searching the logs for warnings i found this messages when i restart the tomcat, don't know if it helps to find the problem : Feb 2 19:50:37 tobias-laptop jsvc.exec[3129]: 02.02.2010 19:50:37 org.apache.catalina.startup.HostConfig checkResources#012INFO: Undeploying context [/myapp] Feb 2 19:50:37 tobias-laptop jsvc.exec[3129]: 02.02.2010 19:50:37 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads#012SCHWERWIEGEND: A web application appears to have started a thread named [MySQL Statement Cancellation Timer] but has failed to stop it. This is very likely to create a memory leak. Feb 2 19:50:37 tobias-laptop jsvc.exec[3129]: 02.02.2010 19:50:37 org.apache.catalina.startup.HostConfig deployDescriptor#012INFO: Deploying configuration descriptor myapp.xml

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