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  • nagios wrongly reports packet loss

    - by Alien Life Form
    Lately, on my nagios 3.2.3 install (CentOS5, monitoring ~ 300 hosts, 1150 services) has sdtarted to occasionally report high packet loss on 50-60 hosts at a time. Problem is it's bogus. Manual runs of ping (or its own check_ping binary) finds no fault with any of the affected hosts. The only possible cures I found so far are: run all the checks manually (they will succeed but it may act up again on next check) acknowledge and wait for the problem to go away (may take several ours) I suspect (but have no particular reason other than single rescheduled checks succeeding) that the problem may lay with all the checks being mass scheduled together - in which case introducing some jitter in the scheduling (how?) might help. Or it may be something completely different. Ideas, anyone?

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  • WPF custom control derived from ComboBox that shows a Data

    Create a custom WPF control that derives from ComboBox and create a property where its value will be used as the content of the dropdown  read moreBy Michael DetrasDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • python reports socket in use, netstat and others claim its not

    - by captainmish
    We have a strange socket issue with a RHES3 box: Python 2.4.1 (#1, Jul 5 2005, 19:17:11) [GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-52)] Type "help", "copyright", "credits" or "license" for more information. >>> import socket >>> s = socket.socket() >>> s.bind(('localhost',12351)) Traceback (most recent call last): File "<stdin>", line 1, in ? File "<string>", line 1, in bind socket.error: (98, 'Address already in use') This seems normal, lets see what has that socket: # netstat -untap | grep 12351 {no output} # grep 12351 /proc/net/tcp {no output} # lsof | grep 12351 {no output} # fuser -n tcp 12351 {no output, repeating the python test fails again} # nc localhost 12351 {no output} # nmap localhost 12351 {shows port closed} Other high ports work fine (eg 12352 works) Is there something magic about this port? Is there somewhere else I can look? Where does python find out that socket is in use that netstat doesnt know about? Any other way I can find out what/if that socket is?

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  • What Makes an Interesting Custom Logo Design

    As we all know that a custom logo design is an essential and crucial part of an effective brand identity and marketing strategy. Since it acts like the visual representation of the brand or the busin... [Author: Emily Matthew - Web Design and Development - March 31, 2010]

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  • WIndows 7 cannot boot - bootrec reports FS not found or corrupt

    - by purecharger
    For 3 days now I've been unable to boot into my Windows 7 partition, and all my research has been to no avail. I'm hoping someone here has more ideas on how to fix this. When I boot up now, I get the black screen with BCD error that says theres no valid file system or it may be corrupt (pardon my lack of detail, no copy/paste is available then). When I boot with the Windows 7 disc and go into repair tools, no operating system is found, and attempting to automatically repair the problem fails with Unknown Operating System (Unknown Disk) or something similar. When I drop into the command prompt, I am able to see and navigate my C:\ drive without issue. I attempt to use bootrec: C:\> bootrec /ScanOS Finds C:\Windows as a system partition. C:\> bootrec /RebuildBCD Fails with volume does not contain a recognized file system. please make sure that all required file system drivers are loaded and that the volume is not corrupted. So then I attempt to fix the bootsector: C:\> bootsect /nt60 C: /force Which completes successfully (sorry, no output..) Upon rebooting, I have the same problem. I've also tried all of the above after making my Windows partition active: C:\> diskpart DISKPART> select disk 1 DISKPART> select partition 1 DISKPART> active DISKPART> exit Then bootrec as above, both with and without a reboot after the DISKPART commands. Then I've also tried rebuilding the BCD store by hand: set systemdrive=C: set tempbcd=C:\boot\bcd.temp set tempfile=C:\boot\temp.txt bcdedit -createstore %tempbcd% bcdedit.exe -store %tempbcd% -create {bootmgr} -d "Windows Boot Manager" bcdedit -store %tempbcd% -create -d "Windows Vista" -application osloader>%tempfile% set /p winvistaguid= <%tempfile% set winvistaguid=%winvistaguid:~10,38% bcdedit -store %tempbcd% -set %winvistaguid% osdevice partition=%systemdrive% bcdedit -store %tempbcd% -set %winvistaguid% device partition=%systemdrive% bcdedit -store %tempbcd% -set %winvistaguid% path \Windows\system32\winload.exe bcdedit -store %tempbcd% -set %winvistaguid% systemroot \Windows bcdedit -import %tempbcd% However on the import, I get my familiar friendly message: volume does not contain a recognized file system. please make sure that all required file system drivers are loaded and that the volume is not corrupted I'm at my wits end here, and I cannot understand why Windows refuses to see this as a valid install. When I list the disk/partition in DISKPART, it shows up as NTFS and "Healthy", and I can navigate the directory structure from DOS with no problems. I really, really do not want to reformat and reinstall. I know this problem can be solved!

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  • WIndows 7 cannot boot - bootrec reports FS not found or corrupt

    - by purecharger
    For 3 days now I've been unable to boot into my Windows 7 partition, and all my research has been to no avail. I'm hoping someone here has more ideas on how to fix this. When I boot up now, I get the black screen with BCD error that says theres no valid file system or it may be corrupt (pardon my lack of detail, no copy/paste is available then). When I boot with the Windows 7 disc and go into repair tools, no operating system is found, and attempting to automatically repair the problem fails with Unknown Operating System (Unknown Disk) or something similar. When I drop into the command prompt, I am able to see and navigate my C:\ drive without issue. I attempt to use bootrec: C:\> bootrec /ScanOS Finds C:\Windows as a system partition. C:\> bootrec /RebuildBCD Fails with volume does not contain a recognized file system. please make sure that all required file system drivers are loaded and that the volume is not corrupted. So then I attempt to fix the bootsector: C:\> bootsect /nt60 C: /force Which completes successfully (sorry, no output..) Upon rebooting, I have the same problem. I've also tried all of the above after making my Windows partition active: C:\> diskpart DISKPART> select disk 1 DISKPART> select partition 1 DISKPART> active DISKPART> exit Then bootrec as above, both with and without a reboot after the DISKPART commands. Then I've also tried rebuilding the BCD store by hand: set systemdrive=C: set tempbcd=C:\boot\bcd.temp set tempfile=C:\boot\temp.txt bcdedit -createstore %tempbcd% bcdedit.exe -store %tempbcd% -create {bootmgr} -d "Windows Boot Manager" bcdedit -store %tempbcd% -create -d "Windows Vista" -application osloader>%tempfile% set /p winvistaguid= <%tempfile% set winvistaguid=%winvistaguid:~10,38% bcdedit -store %tempbcd% -set %winvistaguid% osdevice partition=%systemdrive% bcdedit -store %tempbcd% -set %winvistaguid% device partition=%systemdrive% bcdedit -store %tempbcd% -set %winvistaguid% path \Windows\system32\winload.exe bcdedit -store %tempbcd% -set %winvistaguid% systemroot \Windows bcdedit -import %tempbcd% However on the import, I get my familiar friendly message: volume does not contain a recognized file system. please make sure that all required file system drivers are loaded and that the volume is not corrupted I'm at my wits end here, and I cannot understand why Windows refuses to see this as a valid install. When I list the disk/partition in DISKPART, it shows up as NTFS and "Healthy", and I can navigate the directory structure from DOS with no problems. I really, really do not want to reformat and reinstall. I know this problem can be solved!

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  • Custom Extensions on Managed Chromebooks

    - by user417669
    I am a developer looking for the best way to set up different schools with their own custom, private extensions (ie School A should be the only one with access to Extension A). Theoretically, I am aware that there are a few ways to get a custom, private extension pushed out on a domain: Host the .crx on a server and click "Specify a Custom App" in the management console. Create a Domain App by uploading a zip to the Chrome Web Store Upload the extension from my developer account to the Chrome Web Store and publish to a single "trusted tester," or make it unlisted Option (1), hosting the .crx, has not been working. I am not sure why, but the extension is simply not pushing out. I link directly to the crx file, which has the right ID and MIME type, still, no dice. If anyone has any tips or suggestions for getting this to work, I would love to hear them! Option (2), having the school create a domain app, seems a bit inefficient because it requires all schools to upload their own zip. So essentially I would have to email a zip file to the school, and have them publish it. All updates to the extension will also require a similar process, so this doesn't seem ideal. I doubt that option (3) would work. If I published to the admin as a "trusted tester", I don't think that the other people in the domain would be able to access it. If it is unlisted, I do not know how an admin could find it in the Chrome Web Store dialog. Also, I would rather avoid security through obscurity. Has anyone had success with hosting the extension and using the Specify a Custom App feature? Any other suggestions for getting a Custom Extension pushed out by the management console? Thanks so much!

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  • Custom Web Menu with embedded resources

    This is a free custom web menu with Tigra menu (free JavaScript menu) embedded....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Custom Web Menu with embedded resources

    This is a free custom web menu with Tigra menu (free JavaScript menu) embedded....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • SSRS reports print button missing in IE 8

    - by Will Sams
    Seems like this is broken again (http://serverfault.com/questions/177268/ssrs-report-unable-to-load-client-print-control and SQL 2008 SP2 RsClientPrint ActiveX - "Unable to load client print control"). We updated all of our Windows 7 clients last Friday and it looks like the mighty "Unable to load client print control" has returned since then. Anyone aware of possible problems with the latest batch of Windows Updates?

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  • Windows 7 wifi reports "no network access" and "no internet access" but connects in fedora

    - by rick2047
    I am running windows 7 home basic (64bit) on a Acer 5742G laptop with Atheos wifi adapter in it. Yesterday, I hiberneted my computer as I always do and up untill then the wifi was working fine. When I booted my computer up again today I started having a strange problem: It detects my wifi but after connecting to it, it keeps on oscillating between states of no network access and no internet access. I can't connect to anything (the internet or my router). I tried to reset my internet protocol stack using this fixit file. I also tried to uninstall and reinstall my network driver. Neither helped. I am using the same laptop's fedora installation right now and the wifi is working perfectly fine. Please help. Edit To add additional details, I have Microsoft Security essentials as my antivirus software and I haven't messed with the firewall or the router configurations.

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  • Custom Rule Action in Outlook

    - by Zee99
    How to create my own custom action in Microsoft Outlook Rules? In Outlook, when creating a rule in the Rules wizard, we set first the conditions and then set the actions that we choose from a list of predefined actions. Is there a way to add my own action to the existing actions programmatically? I also see an action called custom action, when i click it it opens up a small window with an empty combobox, can i add my custom action there, and how?

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  • Custom Scrollbars with CSS

    CSS 3 is well on its way and promises some amazing features, including scrollable divs. There are several implementations of custom scrollbars, but the following implementation works across all popular browsers and supports scrolling with the mouse wheel.

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  • Rkhunter reports file properties have changed

    - by CountMurphy
    I am running a fully updated LTS copy of Ubuntu server. Today I ran rkhunter (as I do from time to time). This is the output I got: Warning: The file properties have changed: [15:52:25] File: /bin/ps [15:52:25] Current hash: f22991ec93ae966c856d367f42fc3d8a484bd827 [15:52:25] Stored hash : 1892268bf195ac118076b1b0f53e7a637eb6fbb3 [15:52:25] Current inode: 142902 Stored inode: 130894 [15:52:25] Current file modification time: 1324307913 (19-Dec-2011 07:18:33) [15:52:25] Stored file modification time : 1260992081 (16-Dec-2009 11:34:41) Warning: The file properties have changed: [15:52:33] File: /usr/bin/ldd [15:52:33] Current hash: f1e2ca5aa3a28994e2cebb64c993a72b7d97b28c [15:52:33] Stored hash : 295d9cedb121a5e431a39a6d201ecd7ce5640497 [15:52:33] Current inode: 2236210 Stored inode: 2234359 [15:52:33] Current size: 5280 Stored size: 5279 [15:52:33] Current file modification time: 1331165514 (07-Mar-2012 16:11:54) [15:52:33] Stored file modification time : 1295653965 (21-Jan-2011 15:52:45) Warning: The file properties have changed: [15:52:37] File: /usr/bin/pgrep [15:52:37] Current hash: 3eada9a96760f3e2c9111cfe32901d1432813c1d [15:52:37] Stored hash : ce265d0db9964b173fe5036f703a9b8d66e55df3 [15:52:37] Current inode: 2229646 Stored inode: 2224867 [15:52:37] Current file modification time: 1324307913 (19-Dec-2011 07:18:33) [15:52:37] Stored file modification time : 1260992081 (16-Dec-2009 11:34:41) Warning: The file properties have changed: [15:52:41] File: /usr/bin/top [15:52:41] Current hash: 6be13737d8b0950cea2f1ae3a46d4af713dbe971 [15:52:41] Stored hash : c7b495ecef3982eeb6f08a511861b1a1ae8775e6 [15:52:41] Current inode: 2229629 Stored inode: 2224862 [15:52:41] Current file modification time: 1324307913 (19-Dec-2011 07:18:33) [15:52:41] Stored file modification time : 1260992081 (16-Dec-2009 11:34:41) Warning: The file properties have changed: [15:52:53] File: /usr/sbin/cron [15:52:53] Current hash: e783ca973f970aa8a4bf5edc670e690b33914c3d [15:52:53] Stored hash : 4718257a8060736b9058aed025c992f02a74a5a7 [15:52:53] Current inode: 2224719 Stored inode: 2228839 [15:52:54] Current file modification time: 1330965568 (05-Mar-2012 08:39:28) There were also a few other I left out. Has my server been rooted? I am running fail2ban and do monitor failed ssh logins. nothing has come up. Could someone compare these hashes to their copy of Ubuntu Server (lts)? Please tell me these are false positives..... Edit: is something else like rkhunter I can run for a second scan?

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  • nmap reports host up when it isn't

    - by martianway
    On an Ubuntu VM I ran: sudo nmap -sP 192.168.0.* This returned: Starting Nmap 5.00 ( http://nmap.org ) at 2010-12-28 22:46 PST Host 192.168.0.0 is up (0.00064s latency). Host 192.168.0.1 is up (0.00078s latency). Host 192.168.0.2 is up (0.00011s latency). . . . Host 192.168.0.254 is up (0.00068s latency). Host 192.168.0.255 is up (0.00066s latency). The problem is I only have 4 live machines on 192.168.0.* so why did nmap report every ip in the subnet has a live host? The ip address of the Ubuntu machine is 192.168.28.131 From this VM I can ping the live systems on my internal subnet 192.168.0.* and get the expected response. And if I ping a machine that doesn't exist I can get no response as expected.

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  • Custom data rendering in results

    Since the launch of Custom Search, we've been constantly pushing the customization envelope -- allowing users to tweak ranking, provide refinements, add promotions above results, change the look...

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  • custom session in lightdm "chrome os"

    - by profiler1982
    am do this sudo gedit /usr/share/xsessions/chromeos.desktop and i file: [Desktop Entry] Encoding=UTF-8 Name=Chrome OS Comment= Exec=google-chrome --standalone Type=Application in this way am have custom session in lightdm "chrome os" my keyboard input is qwertz but in this session, and in lightdm is qwerty how to change that? and how to expend this session. same thing am trying with play-on-linux becouse am have eee pc with 1.3ghz and 1gb ram

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  • Custom file extensions as ASP.NET in IIS?

    - by CJLeeds
    I have Apache 2.2, and it's got modaspdotnet installed - the 2.2 version. I followed the advice at Configuring ASP.NET MVC2 on Apache 2.2 using mod_aspdotnet, and the server works basically very well. However, I'm trying to create custom extensions (e.g. file.customname, instead of file.aspx), similar to how Apache/PHP/htaccess can handle this. (I think it's mod_rewrite or .htaccess, forgotten which now!) What would I do to get these custom file types (all serving .NET files) working? The extensions are given custom names by me, simply for testing purposes This is a tourism site [a testing one, btw], and it's working OK on localhost for basic pages, but I wanted to know how to do this. How would I go about this? I've had a look on Google etc. but custom HTTP handlers was all I could really find! Thanks

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  • simple sql group by custom groups question [migrated]

    - by alex
    imagine a mysql table that only has 2 columns, an id and a name of a color. with this query I know how many id's do I have for each color. SELECT color_name, count(id) FROM color_table GROUP BY (color_name); red:10 blue:5 yellow:3 green:1 my question is, is there a way I can specify to the "group by" some custom groups?? i mean, is there a query that results in this??: red:10 colors different than red: 9

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  • Video driver reports 8-bit color depth after Windows Update

    - by user3163
    Windows Update pushed out a new video driver for the Mobile Intel(R) 4 Series Express Chipset Family. One HP 6730b laptop was updated from 8.15.10.1872 to 8.15.10.2021. After the update the color depth is reported as 8-bit even if the setting is 32-bit. This means that Areo effects are disabled. Downgrading to 8.15.10.1872 did not help. Is there any way to force the video driver to report 32-bit color depth?

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