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• Is mumble safe (privacy wise)?

  - by AnonymousLurker

  When chatting on IRC, it is possible to leak data like OS, CPU type if the IRC client happens to leak it in VERSION string. Anybody doing /CTCP VERSION can see it. Same about timezone (/CTCP TIME). This can be mitigated by turning replies to CTCP queries off. Also, IP address is leaked to others (/whois nickname will show it if it's not cloaked). By analogy, does the mumble client expose such sensitive data to others that are connected to the same server? If it does, what are the ways to mitigate this?

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• make file readable by other users

  - by Alaa Gamal

  i was trying to make one sessions for my all subdomains (one session across subdomains) subdomain number one auth.site.com/session_test.php session_set_cookie_params(0, '/', '.site.com'); session_start(); echo session_id().'<br />'; $_SESSION['stop']='stopsss this'; print_r($_SESSION); subdomain number two anscript.site.com/session_test.php session_set_cookie_params(0, '/', '.site.com'); session_start(); echo session_id().'<br />'; print_r($_SESSION); Now when i visit auth.site.com/session_test.php i get this result 06pqdthgi49oq7jnlvuvsr95q1 Array ( [stop] => stopsss this ) And when i visit anscript.site.com/session_test.php i get this result 06pqdthgi49oq7jnlvuvsr95q1 Array () session id is same! but session is empty after two days of failed trys, finally i detected the problem the problem is in file promissions the file is not readable by the another user session file on my server -rw------- 1 auth auth 25 Jul 11 11:07 sess_06pqdthgi49oq7jnlvuvsr95q1 when i make this command on the server chmod 777 sess_06pqdthgi49oq7jnlvuvsr95q1 i get the problem fixed!! the file is became readable by (anscript.site.com) So, how to fix this problem? How to set the default promissions on session files? this is the promissions of the sessions directory Access: (0777/drwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root)

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• Setting up Ubuntu Server for hosting Java web applications

  - by Denis Hoss

  I'm trying to set up an Web Server running Ubuntu server to host some Java web applications, with MySQL running on it, an so on .. here is the tutorial I follow: perfect server ubuntu 11.10 The server configuration is: CPU S1155 INTEL Pentium G850 2.9GHz VGA 5GTs 3MB 65W MB Gigabyte GA-H77-D3H Ram 4x4Gb HDD 5x1TB Seagate (4 in RAID5 and 1 for Backup) The problem is that when I am trying to install the Server version of Ubuntu, when the installer asks me whether to activate ATA RAID Devices, and I click yes, he sees only that one, if I click no, he sees all 5 HDD's separate without any RAID, is this normal? I also tried to install the Desktop version on RAID5, but after restart, Ubuntu does't want to boot up, an underscore stands on the top of the screen. I am a newbie in servers and their configuration, in fact I am developer. I need a help from you guys.

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• 7zip many files from different folders?

  - by mafutrct

  I would like to add a large number of files with different names from different folders to a single 7zip archive using 7za.exe. This should be simple, but it turned out to be a major pain. I created a file that contains the paths (7za -a @list.txt) but once there are too many (~100) files, it fails. Apparently the content of the argument file is pushed onto the command line buffer, which is far too small (the number of files to add is 1m). Splitting the process up by adding the files one by one is not feasible due to the way 7za works: When adding the next file, it creates a copy of the archive, adds the file to the copy and finally replaces the original. This is terribly slow once the archive gets to a couple 100MB in size. So far I am using a combination of the two approaches by adding a dozen files each time in a loop, but it is an unreliable hack and still very slow. Is there a better way to do it? I tried to use 7zip wrapper DLLs (I'm a C# programmer), but none of them worked reliably and I was repeatedly suggested to just use 7za instead.

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• Apply SetEnvIf after Apache RewriteRule

  - by coneybeare

  I have a working apache rewrite rule: RewriteCond %{HTTP_HOST} ^.*foo.com RewriteRule (.*) http://bar.com$1 [R=301,QSA,L] and some working dontlog SetEnvIfs: SetEnvIf Request_URI "^/server-status$" dontlog SetEnvIf Request_URI "^/home/ping$" dontlog SetEnvIf Request_URI "^/haproxy-status$" dontlog SetEnvIf User-Agent ".*internal dummy connection.*" dontlog CustomLog /var/log/apache2/access.log combined env=!dontlog but I can't figure out how to stop the RewriteRule from logging a duplicate line. foo.com and bar.com are both on the same machine. I would expect this rule to work, but it did not: SetEnvIf Host "foo.com" dontlog I still get duplicates in the Apache Log: 10.250.18.97 - - [06/Apr/2012:16:57:12 +0000] "GET / HTTP/1.1" 200 732 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3" 68.194.30.42 - - [06/Apr/2012:16:57:12 +0000] "GET / HTTP/1.1" 200 732 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.55.3 (KHTML, like Gecko) Version/5.1.5 Safari/534.55.3" .... where 10.250.18.97 is the server's IP. How can I prevent that RewriteRule from logging?

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• How to update a keyboard layout DLL on Windows?

  - by user87690

  Information about keyboard layout is stored in keyboard layout DLLs on Windows. One can make a custom layout using a tool like Microsoft Keyboard Layout Creator (http://msdn.microsoft.com/en-us/goglobal/bb964665.aspx). It creates the dynamical library and also an installer which places the DLL at a right place and also puts necessary information to registry so the layout can be used. Now my question. How can one update his custom layout? One could uninstall the layout and install the new version which effectively replaces the DLL file. However this alone doesn't work because it seems that the old copy of the DLL stays loaded somewhere and is used when one sets the layout instead of loading new version. So is there a way how to tell the system that its “keyboard layout cache” is invalid? Of course I could reboot the whole system but I'd like to avoid it as it's annoying and seems to be poor design to reboot whole system just to reload a DLL.

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• Are there any viable DNS or LDAP alternatives for distributed key/value storage and retrieval?

  - by makerofthings7

  I'm working on a software app that needs distributed decentralized name resolution, and isn't bound to TCP/IP. Or more precisely, I need to store a "key" and look up it's value, and the key may be a string, a number, or any other realistic data type. Examples: With a phone number, look up a name. (or with an area code, redirect to the server that handles that exchange) With an IP Address get a DNS name, or a Whois contact (string value) With a string, get an IP, ( like a DNS TXT or SRV record). I'm thinking out of the box here and looking for any software that allows for this. (more info below) Are there any secure, scalable DNS alternatives that have gained notoriety? I could ask on StackOverflow, but think the infrastructure groups would have better insight on this. Edit More info: I'm looking at "Namecoin" the DNS version of Bitcoin, and since that project is faltering, I'm looking at alternative ways to store name-value pairs, with an optional qualifier. I think a name value pair is of global interest is useful, but on a limited scale. Namecoin tried to be too much, and ended up becoming nothing. I'm trying to solve that problem in researching alternatives and applying distributed technologies where applicable. Bitcoin/Namecoin offers a Distributed Hash Table, which has some positive aspects, but not useful for DNS, except for root servers.

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• SVN Notifier for linux?

  - by mnml

  I would like to know if there is any version of this software for linux or any equivalent: svn notifier

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• Computer suddenly dies; screen displays weird flickering lines, then restarts

  - by Imray

  I've been having this terrible problem for a little while and just managed to get a picture of 'dead screen' for the first time and I am posting it to seek help. Randomly, at irregular intervals (typically once a week), while working on something (it's been different things every time) my computer will just suddenly go dead - the screen turns to exactly the picture below (the lines flicker a little bit), it hangs there for a few seconds and then restarts. Obviously this is extremely frustrating and I want to try to stop it. I've searched numerous postings with similar keywords but nothing exactly the same as mine. Does anyone have any idea what might be the cause of this? I would post all my system settings and installed programs but the list is long and I don't know how much relevance each item would be. If you'd like to know something specific, please comment and I'll let you know whatever you need. SPECS C:\Users\Imray>systeminfo Host Name: Imray OS Name: Microsoft Windows 7 Professional OS Version: 6.1.7600 N/A Build 7600 OS Manufacturer: Microsoft Corporation OS Configuration: Standalone Workstation OS Build Type: Multiprocessor Free Registered Owner: Imray - Owner Registered Organization: Product ID: 00371-152-9333854-85895 Original Install Date: 06/09/1999, 5:45:21 PM System Boot Time: 22/03/2013, 8:58:18 AM System Manufacturer: Gateway System Model: DX4840 System Type: x64-based PC Processor(s): 1 Processor(s) Installed. [01]: Intel64 Family 6 Model 37 Stepping 2 GenuineIntel ~3201 Mhz BIOS Version: American Megatrends Inc. P01-A3 , 17/05/2010 Windows Directory: C:\Windows System Directory: C:\Windows\system32 Boot Device: \Device\HarddiskVolume2 System Locale: en-us;English (United States) Input Locale: en-us;English (United States) Time Zone: (UTC-05:00) Eastern Time (US & Canada) Total Physical Memory: 6,135 MB Available Physical Memory: 3,632 MB Virtual Memory: Max Size: 12,268 MB Virtual Memory: Available: 8,114 MB Virtual Memory: In Use: 4,154 MB Page File Location(s): C:\pagefile.sys Domain: WORKGROUP Logon Server: \\Imray-OWNER Hotfix(s): 4 Hotfix(s) Installed. [01]: KB971033 [02]: KB958559 [03]: KB977206 [04]: KB981889 Network Card(s): 2 NIC(s) Installed. [01]: 802.11n Wireless PCI Express Card LAN Adapter Connection Name: Wireless Network Connection DHCP Enabled: Yes DHCP Server: 192.168.2.1 IP address(es) [01]: 192.168.2.13 [02]: fe80::1df1:5399:6890:91f6 [02]: Microsoft Virtual WiFi Miniport Adapter Connection Name: Wireless Network Connection 2 DHCP Enabled: Yes DHCP Server: N/A IP address(es) Graphics Card Specs Name ATI Radeon HD 5570 PNP Device ID PCI\VEN_1002&DEV_68D9&SUBSYS_E142174B&REV_00\4&18A4B35E&0&0008 Adapter Type ATI display adapter (0x68D9), ATI Technologies Inc. compatible Adapter Description ATI Radeon HD 5570 Adapter RAM 1.00 GB (1,073,741,824 bytes) Installed Drivers atiu9p64 aticfx64 aticfx64 atiu9pag aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Driver Version 8.700.0.0 INF File oem1.inf (ati2mtag_Evergreen section) Color Planes Not Available Color Table Entries 4294967296 Resolution 1920 x 1080 x 59 hertz Bits/Pixel 32 Memory Address 0xD0000000-0xDFFFFFFF Memory Address 0xFBDE0000-0xFBDFFFFF I/O Port 0x0000D000-0x0000DFFF IRQ Channel IRQ 4294967293 I/O Port 0x000003B0-0x000003BB I/O Port 0x000003C0-0x000003DF Memory Address 0xA0000-0xBFFFF Driver c:\windows\system32\drivers\atikmpag.sys (8.14.1.6095, 181.00 KB (185,344 bytes), 06/09/1999 5:59 PM)

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• GMail detecting mail as spam

  - by Petru Toader

  I've been trying for a long time to get our company's mail server send mail that will get accepted by the GMail spam filter. I have managed making it work for Yahoo Mail and Hotmail, sadly GMail is still marking our mails as spam. I have configured DKIM, SPF, DMARC and verified our mail server IP address against blacklists. I also have pasted here the headers GMail gets when we send a mail. Delivered-To: [email protected] Received: by 10.42.215.6 with SMTP id hc6csp107427icb; Wed, 20 Aug 2014 07:34:26 -0700 (PDT) X-Received: by 10.194.100.34 with SMTP id ev2mr59101019wjb.76.1408545265402; Wed, 20 Aug 2014 07:34:25 -0700 (PDT) Return-Path: <[email protected]> Received: from mail.phyramid.com (mail.phyramid.com. [178.157.82.23]) by mx.google.com with ESMTPS id dj10si4827754wib.79.2014.08.20.07.34.24 for <[email protected]> (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 20 Aug 2014 07:34:25 -0700 (PDT) Received-SPF: pass (google.com: domain of [email protected] designates 178.157.82.23 as permitted sender) client-ip=178.157.82.23; Authentication-Results: mx.google.com; spf=pass (google.com: domain of [email protected] designates 178.157.82.23 as permitted sender) [email protected]; dkim=pass [email protected] Received: from localhost (localhost [127.0.0.1]) by mail.phyramid.com (Postfix) with ESMTP id ED2BB2017AC for <[email protected]>; Wed, 20 Aug 2014 17:33:23 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=phyramid.com; h= content-type:content-type:mime-version:x-mailer:subject:subject :message-id:to:from:from:date:date; s=dkim; t=1408545197; x= 1409409197; bh=e04RtoyF7G39lfCvA9LLhTz4nF64siZtN5IYmC18Xsc=; b=o +6mO8Uz4Uf1G4U2q6tKUiEy2N2n/5R2VtPPwIvBE5xzK/hEd2sDGMxVzQVgIDCsK Q0Xh+auPaQpxldQ+AEcL2XSZMrk/g0mJONjkpI19I5AwGIJCR1SVvxdecohTn9iR bCHzrGi2wAicfDBzOH6lUBNfh2thri79aubdCYc97U= X-Amavis-Modified: Mail body modified (using disclaimer) - mail.phyramid.com X-Virus-Scanned: Debian amavisd-new at mail.phyramid.com Received: from mail.phyramid.com ([127.0.0.1]) by localhost (mail.phyramid.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 3JcgXZAXeFtX for <[email protected]>; Wed, 20 Aug 2014 17:33:17 +0300 (EEST) Received: from whiterock.local (unknown [109.98.21.30]) by mail.phyramid.com (Postfix) with ESMTPSA id 05CAE200280 for <[email protected]>; Wed, 20 Aug 2014 17:33:15 +0300 (EEST) Date: Wed, 20 Aug 2014 17:34:15 +0300 From: Company Mail <[email protected]> To: [email protected] Message-ID: <[email protected]> Subject: hey there! X-Mailer: Airmail (247) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline How was your summer? ---- Thanks a lot!

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• Capabilities of business and SOHO routers

  - by Q8Y

  I'm currently studying for the CCNA certifications (especially for Cisco routers and configuration). I know that business routers provide more features than SOHO routers, the processing speed and RAM can be enough. Assume I need to connect a number of users through a network (accessing internet, share files, printers, ...). I have a high speed connection to the internet and I already applied QoS. How can I find out how many users such a single (SOHO) router could handle? In my case I'd attach to it multiple switches until I have the number of ports needed. Would everything work well and smoothly with 50 users? What about 300? At which point would I need a business router instead? If I implemented VLAN here, would it make any difference in the performance? When do I really need to use more than one router? (Both SOHO and business) I'm thinking that I may need them only if I want to increase the performance (instead of replacing the existing one) and if I have multiple locations, so in this situation I need to have multiple routers, right? Put differently: Is there is a need to have another router if my business all in one place?

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• Why is the size of windows off by 226x238 if defined via the Window Rules?

  - by Bobby

  I have installed Sawfish 1.8.2 from source on my new Ubuntu 12.04 installation following the Debian instructions, but I had this problem also with the stock 1.5.3. Whenever I define dimensions in the Window Rules for a window, the size is off by exactly 226x238 pixels, which means that 100x100 turns into 326x328. That's a very odd behavior, given that Sawfish is saving and loading the dimensions of the windows correctly (if saved via the window menu). Some additional system information: $ uname -a Linux Dagon 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux $ sawfish --version sawfish version 1.8.2 nvidia proprietary driver, 9600GT Two monitors, 1920x1080 + 1440x900 in one session. Positionng the windows is working fine, only the dimensions are off by that odd number. Does somebody have an idea why?

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• VMWare use of Gratuitous ARP REPLY

  - by trs80

  I have an ESXi cluster that hosts several Windows Server VMs and around 30 Windows workstation VMs. Packet captures show a high number of ARP replies of the form: -sender_ip: VM IP -sender_mac: VM virtual MAC -target_ip: 0.0.0.0 -target_mac: Switch interface MAC The specific addresses aren't really a concern -- they're all legitimate and we're not having any problems with communications (most of the questions surrounding GARP and VMWare have to do with ping issues, a problem we don't have). I'm looking for an explanation of the traffic pattern in an environment that functions as expected. So the question is why would I see a high number of unsolicited ARP replies? Is this a mechanism VMWare uses for some purpose? What is it? Is there an alternative? EDIT: Quick diagram: [esxi]--[switch vlan]--[inline IDS]--[fw]--(rest of network) The IDS is complaining about these unsolicited ARPs. Several IDS vendors trigger on ARP replies without a prior request, or for ARP replies that have a target IP of 0.0.0.0. The target MAC in these replies is the VLAN interface on the switch. Capture points: -The IDS grabs the offending packets -The FW can see the same ones -A VM on the ESXi host does not see these, although there is an ARP request for a specific IP on the ESXi host that has source_ip=0.0.0.0 and source_mac=[switch vlan interface]. I can't share the captures, unfortunately. Really I'm interested in finding out if this is normal for an ESXi deployment.

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• How can I fill (not replace) TAB with Spaces in MSWord?

  - by Morteza

  How can I fill (not replace) TAB with Spaces in MS Office Word? In other word, have a look at the following pic: 1 -> 222 -> 3 111 -> 2 -> 333 11 -> 22 -> 33 11 -> 2222 -> 3333 Suppose that - is indicated one TAB. As you see, each column is justified from left. I need to fill each TAB with Spaces, so that the justification not be confused. If I use 'Find & Replace' option to change each TABs to a specific number of Spaces, justification will be confused because each column have its own character number. In other word, if I change each TAB with 6 Spaces, the above will be changed to the follow: 1 222 3 111 2 333 11 22 33 11 2222 3333 My need is as follow (each dot indicate a Space): 1......222......3 111....2........333 11.....22.......33 11.....2222.....3333

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• How do I log out of gdm from the command line?

  - by Will

  How do you log out in the most recent version of Ubuntu from a local terminal?

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• Firefox Task Manager [closed]

  - by chris Frisina

  CLOSED!??? I SPECIFICALLY said for OSX, and the previousquestionprovides answers for Windows and other addons are for older versions of FF, or do not answer the question. This is a specific question for OSX. Chrome has a built in task manager under "Tools" to look at the process within Chrome, extremely beneficial in locating a stuck page. What is the similar feature in firefox? I need to identify what is causing it to run slowly, and the addons they suggested dont work for OSX or are outdated, and Chrome's about:memory isn't recognizing FF FF Version 17.0, OSX version 10.8.2 Build 12C3006 How to get to Task Manager: Task Manager: THIS IS NOT A DUPLICATE OF: Possible Duplicate: “Task Manager” addon for Firefox?

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• Filtering attachment types in Google Apps (free Google Business)

  - by Ernest

  We have Google apps in our company for mail delivery, our business can't pay the business version yet, however, we need to control the attachment types that employees download. We recently switched from another hosting provider who recomended us to plug Google Apps for mail when we moved the domain, we had a firewall before which was able to prevent certain file types to be downloaded. I know the business version has section for filtering mail (postini services). Is there a hack around my problem? Anyone ever had this problem? Thank you! UPDATE: The main problem is gmail apps uses ssl connection, can this be changed ? how can i get the firewall to filter files only allowing *.doc, *.xls y *.pdf.

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• Reusing slot numbers in Linux software RAID arrays

  - by thkala

  When a hard disk drive in one of my Linux machines failed, I took the opportunity to migrate from RAID5 to a 6-disk software RAID6 array. At the time of the migration I did not have all 6 drives - more specifically the fourth and fifth (slots 3 and 4) drives were already in use in the originating array, so I created the RAID6 array with a couple of missing devices. I now need to add those drives in those empty slots. Using mdadm --add does result in a proper RAID6 configuration, with one glitch - the new drives are placed in new slots, which results in this /proc/mdstat snippet: ... md0 : active raid6 sde1[7] sdd1[6] sda1[0] sdf1[5] sdc1[2] sdb1[1] 25185536 blocks super 1.0 level 6, 64k chunk, algorithm 2 [6/6] [UUUUUU] ... mdadm -E verifies that the actual slot numbers in the device superblocks are correct, yet the numbers shown in /proc/mdstat are still weird. I would like to fix this glitch, both to satisfy my inner perfectionist and to avoid any potential sources of future confusion in a crisis. Is there a way to specify which slot a new device should occupy in a RAID array? UPDATE: I have verified that the slot number persists in the component device superblock. For the version 1.0 superblocks that I am using that would be the dev_number field as defined in include/linux/raid/md_p.h of the Linux kernel source. I am now considering direct modification of said field to change the slot number - I don't suppose there is some standard way to manipulate the RAID superblock?

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• can't send with postfix but I can whith one user

  - by CvR_XX

  I have a postfix and dovecot server but when i try to send an email i get an time -out. Im trying to send with the email [email protected]. A telnet session isn't helping much ether. I get a blank screen. Local it's working fine. My smtp service is running on treadity.com:25. The strange thing is that the logs are completely empty with any info regarding sending emails. Receiving is working alright. Another strange thing is that i've send some message's and that it worked. But that is only with one email. I can still send from that account but other emails are failing any idea's? config file: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters #smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key #smtpd_use_tls=yes #smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache #smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_tls_cert_file=/etc/ssl/certs/dovecot.pem smtpd_tls_key_file=/etc/ssl/private/dovecot.pem smtpd_use_tls=yes # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters #smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key #smtpd_use_tls=yes #smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache #smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_tls_cert_file=/etc/ssl/certs/dovecot.pem smtpd_tls_key_file=/etc/ssl/private/dovecot.pem smtpd_use_tls=yes # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters #smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key #smtpd_use_tls=yes #smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache #smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_tls_cert_file=/etc/ssl/certs/dovecot.pem smtpd_tls_key_file=/etc/ssl/private/dovecot.pem smtpd_use_tls=yes smtpd_tls_auth_only = yes #Enabling SMTP for authenticated users, and handing off authentication to Dovecot smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes 1,1 Top

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• Apache LocationMatch throws 500 and AddOutputFilterByType does nothing

  - by tackleberry

  I need to add below directives to apache. But I get 500 when I add these lines. <LocationMatch "^/assets/.*$"> Header unset ETag FileETag None # RFC says only cache for 1 year ExpiresActive On ExpiresDefault "access plus 1 year" </LocationMatch> Additionally response is not gzipped when I add: AddOutputFilterByType DEFLATE text/html text/css application/javascript application/x-javascript Apache version is: Server version: Apache/2.2.22 (Unix) App: rails 3.2 app When I checked response&request for gzip problem, I see that browser requested gzip: Accept-Encoding gzip, deflate but response not gzipped.

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• Centos 6 - How to upgrade module located inside initramfs?

  - by anonymous-one

  We have recently upgraded our e1000e (intel ethernet) module on one of our centos 6.0 boxes. Even tho the module compile and installed fine, the old version is still being used. We have tracked this down to the fact that the e1000e.ko module is located inside the initamfs file for the booting kernel and thus, even tho the module located in /lib/modules/.... was being updated, the old one is still being loaded from inside the initramfs file. After some research, we have found that creating a new initamfs file in centos should be as simple as: /sbin/dracut <initramfs> <kernel-version> Can someone confirm that this is a safe way to basically recreate the initamfs file? This is a non-locally hosted (1000's of km away...) box, and getting support to resolve this if a reboot is unsuccessful will lead to quite a bit of down time. Thanks.

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• Sycronizing/deploying scripts across several systems

  - by otto

  I have a few time consuming tasks that I like to spread across several computers. These tasks require running an identical ruby or python script (or series of scripts that call each other) on each machine. The machines will a separate config file telling the script what portion of the task to complete. I want to figure out the best way to syncronize the scripts on these machines prior to running them. Up until now, I have been making changes to a copy of the script on a network share and then copying a fresh copy to each machine when I want to run it. But this is cumbersome and leaves a chance for error ( e.g missing a file on the copy or not clicking "copy and replace"). Lets assume the systems are standard windows machines that are not dedicated to this task and I don't need to run these scripts all the time (so I don't want a solution that runs 24/7 and always keeps them up to date, I'd prefer something that pushes/pulls on command). My thoughts on various options: Simple adaptation of my current workflow: Keep the originals on the network drive, but write a batch file that copies over the latest version of the scripts so everything is a one-click operation. Requires action on each system, but that's not the end of the world (since each one usually needs their configuration file changed slightly too). Put everything in a Mercurial/Git reposotory and pull a fresh copy onto each node. Going straight to the repo from each machine would guarantee a current version (and would have the fringe benefit of allowing edits to the script to be made from any machine). Cons would be that it requires VCS to be installed on each machine and there might be some pains dealing with authentication since I wouldn't use a public repo. Open up write access on a shared folder and write a script to use rsync (or similar) to push the changes out to all of the machines at once. This gets a current version on every machine (though you would have to change the script if you want to omit a machine or add a new one). Possible issue would be that each computer has to allow write access. Dropbox is a reasonable suggestion (and could work well) but I dont want to use an external service and I'd prefer not to have to have dropbox running 24/7 on systems that would normally not need it. Is there something simple that I am missing? Some tool designed expressly for doing this kind of thing? Otherwise I am leaning toward just tying all of the systems into Mercurial since, while it requires extra software, it is a little more robust than writing a batch file (e.g. if I split part of a script into a separate module, Mercurial will know what to do whereas I would have to add a line to the batch file).

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• Can only bring up one of two interfaces

  - by mstaessen

  I'm having a bizarre issue with my HP Proliant DL 360 G4p server. It has two gigabit ethernet interfaces but I can bring up only one of them. This is starting to freak me out and that's why I turned here. I'm running the x64 ubuntu 11.10 server edition. lshw -c network shows that the second interface is disabled. I have no idea why ans how to enable it. $ sudo lshw -c network *-network:0 description: Ethernet interface product: NetXtreme BCM5704 Gigabit Ethernet vendor: Broadcom Corporation physical id: 2 bus info: pci@0000:02:02.0 logical name: eth0 version: 10 serial: 00:18:71:e3:6d:26 size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 66MHz capabilities: pcix pm vpd msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.119 duplex=full firmware=5704-v3.27b, ASFIPMIc v2.36 ip=10.48.8.x latency=64 link=yes mingnt=64 multicast=yes port=twisted pair speed=100Mbit/s resources: irq:25 memory:fdf70000-fdf7ffff *-network:1 DISABLED description: Ethernet interface product: NetXtreme BCM5704 Gigabit Ethernet vendor: Broadcom Corporation physical id: 2.1 bus info: pci@0000:02:02.1 logical name: eth1 version: 10 serial: 00:18:71:e3:6d:25 capacity: 1Gbit/s width: 64 bits clock: 66MHz capabilities: pcix pm vpd msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.119 firmware=5704-v3.27b latency=64 link=no mingnt=64 multicast=yes port=twisted pair resources: irq:26 memory:fdf60000-fdf6ffff If I try to ifup eth1, then I get $ sudo ifup eth1 Ignoring unknown interface eth1=eth1. I figured that's what happens when there is no eth1 listed in /etc/network/interfaces. But when I add the configuration for eth1, I still can't ifup. $ sudo ifup eth1 RTNETLINK answers: File exists Failed to bring up eth1. I've also tried ifconfig eth1 up but without any result. For clarity, I have added a masked version of /etc/network/interfaces. I don't think it is the cause of the problem though. $ cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.48.8.x netmask 255.255.255.y network 10.48.8.z broadcast 10.48.8.t gateway 10.48.8.u auto eth1 iface eth1 inet static address 193.190.253.x netmask 255.255.255.y network 193.190.253.z broadcast 193.190.253.t gateway 193.190.253.u I really need some help fixing this. It's driving me crazy. Thanks.

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• How does Subnetting Work?

  - by Kyle Brandt

  How does Subnetting Work, and How do you do it by hand or in your head? Can someone explain both conceptually and with several examples? Server Fault gets lots of subnetting homework questions, so we could use an answer to point them to on Server Fault itself. What is classless routing and why is class-based routing obsolete? If I have a network, how do I figure out how to split it up? If I am given a netmask, how do I know what the network Range is for it? Sometimes there is a slash followed by a number, what is that number? Sometimes there is a subnet mask, but also a wildcard mask, they seem like the same thing but they are different? Someone mentioned something about knowing binary for this? What is NAT (Network Address Translation). Not looking for links to other sites (unless maybe you have one post with a bunch of good ones). I already know how to subnet, I just thought it would be nice if Server Fault had a generic subnetting answer.

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• Apache and MySQL not working well after extending filesystem

  - by xtrimsky

  I had 4Gb on my /var (/dev/mapper/vg00-var) filesystem, and I wanted to extend it to 160Gb. I did it following this tutorial: http://faq.1and1.com/dedicated_servers/root_server/linux_admin_help/7.html Now I have 160: Filesystem Size Used Avail Use% Mounted on /dev/md1 4.0G 424M 3.6G 11% / /dev/mapper/vg00-usr 4.3G 1.4G 3.0G 32% /usr /dev/mapper/vg00-var 198G 6.5G 192G 4% /var /dev/mapper/vg00-home 4.3G 4.4M 4.3G 1% /home none 1.1G 0 1.1G 0% /tmp Now I have a problem, in order for Apache to work, each time I reboot, I need to also reboot apache: "apachectl -k restart" which is already terrible. I think this is because /var contains the htdocs The worst part is, mysql is not starting at all. Mysql has some files also in /var What have I done wrong ?? :( Thank you EDIT: Attaching /var/log/mysqld.log: 120602 11:17:44 InnoDB: Waiting for the background threads to start 120602 11:17:45 InnoDB: 1.1.8 started; log sequence number 8354009 120602 11:17:45 [ERROR] /usr/libexec/mysqld: unknown variable 'set-variable=local-infile=0' 120602 11:17:45 [ERROR] Aborting 120602 11:17:45 InnoDB: Starting shutdown... 120602 11:17:46 InnoDB: Shutdown completed; log sequence number 8354009 120602 11:17:46 [Note] /usr/libexec/mysqld: Shutdown complete 120602 11:17:46 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

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