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  • Varnish 503 Guru Mediation errors with pfsense and healthy apache

    - by Fammy
    We are running a pfsense firewall / load balancer with varnish as service, In front of Fedora linux webservers running apache. We are getting intermittent 503 guru mediation errors. We are a bit stuck scratching our heads because it is not easily repeatable. The timeouts are set to 30s (connect and first byte) but yet the 503 page will show instantly, not after 30s. Then if you refresh immediately it may very well work instantly and sometimes for a 100 refreshes. The load average on the web servers is < 1, the DB server is < 3 (all servers (web, db, pfsense/varnish) are physical rather than VM. I would have thought if the timeouts were being hit then the 503 page would only appear after 30s am I mistaken? Also when an error happens there does not appear to be any corresponding error in apache's log files. This seems to affect pages as well as images, so it is possible to have the page load fine, and for 9/10 images on the page to be fine but 1 not work An example of the varnish debug is below. It says no backend connection but I can't figure out why, if the load was high on apache I could understand it being flaky The machines are on the same gig ethernet lan 21 ReqStart c *IP-REMOVED* 33418 1274368062 21 RxRequest c GET 21 RxURL c /fashion/ 21 RxProtocol c HTTP/1.1 21 RxHeader c User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.5) Gecko/2008121622 Fedora/3.0.5-1.fc10 Firefox/3.0.5 21 RxHeader c Host: *ourdomain.com* 21 RxHeader c Accept: */* 21 RxHeader c Accept-Encoding: deflate, gzip 21 VCL_call c recv lookup 21 VCL_call c hash 21 Hash c /fashion/ 21 Hash c *ourdomain.com* 21 VCL_return c hash 21 VCL_call c miss fetch 21 FetchError c no backend connection 21 VCL_call c error restart 21 VCL_call c recv lookup 21 VCL_call c hash 21 Hash c /fashion/ 21 Hash c *ourdomain.com* 21 VCL_return c hash 21 VCL_call c miss fetch 21 FetchError c no backend connection 21 VCL_call c error restart 21 VCL_call c recv lookup 21 VCL_call c hash 21 Hash c /fashion/ 21 Hash c *ourdomain.com* 21 VCL_return c hash 21 VCL_call c miss fetch 21 FetchError c no backend connection 21 VCL_call c error deliver 21 VCL_call c deliver deliver 21 TxProtocol c HTTP/1.1 21 TxStatus c 503 21 TxResponse c Service Unavailable 21 TxHeader c Server: Varnish 21 TxHeader c Content-Type: text/html; charset=utf-8 21 TxHeader c Content-Length: 384 21 TxHeader c Accept-Ranges: bytes 21 TxHeader c Date: Wed, 11 Apr 2012 10:36:17 GMT 21 TxHeader c X-Varnish: 1274368062 21 TxHeader c Age: 0 21 TxHeader c Via: 1.1 varnish 21 TxHeader c Connection: close 21 TxHeader c X-Cache: MISS 21 Length c 384 21 ReqEnd c 1274368062 1334140577.449995041 1334140577.450334787 1.794108152 0.000282764 0.000056982

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  • Graphical corruption during Linux startup and shutdown - should I be worried?

    - by Macha
    For the last month, when starting up or shutting down my laptop under Linux, I would get graphical corruption. Startup has an colour inverted, grainy rendition of what should be displayed while shutdown has a red background with all the text replaced by grey rectangles. At the very least this affects Fedora, Ubuntu and Xubuntu. Windows is not affected. Outside of startup/shutdown the system is fine. Should I be worrying about this?

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  • How to debug GPLI/OCS NG importing

    - by Xian
    I have OCS NG and GLPI set up and working fine idependently of each other on the same host. For a while GLPI was sccuessfully importing computers from OCS NG, but now GLPI shows there are new computers to import but doesn't do anything when requested to import them. How do I find what is going on? Are there any log files or debug modes I can turn on? Documentation on the interaction of these pieces of software is pretty sparse.

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  • Connecting multiple ColdFusion 10 instances to a single Apache 2.2 server

    - by Adam Cameron
    This is on Windows 7 Home Premium edition. I have got two ColdFusion 10 (updater 2) instances: "cfusion" (the default one), and "scratch". I have got a single instance of Apache 2.2 running. Within Apache, I have set up two virtual hosts, each of which needs to be served by a different ColdFusion instance. Each of the CF instances serves files fine via Tomcat's internal web server. Apache serves vanilla HTML files fine too. So both CF instances, and both virtual hosts separately work OK. I can get wsconfig.exe to connect either one of the CF instances to the Apache server, and serve CF files via Apache & that instance. However I cannot find a way of connecting the second CF instance to Apache as well, so that both CF instances are conected, each serving one of the virtual hosts. WSConfig doesn't seem to understand the notion of "multiple CF instances", and the changes it makes to the httpd.conf (via mod_jk.conf) does not seem to be implemented in such a way as to accommodate multiple CF instances talking to a single Apache instance, or multiple virtual hosts. I freely admit to not being confident enough with how mod_jk (or even really httpd.conf) works to be able to guess if I can change stuff to make it work. If I try to add the second CF instance using WSConfig, I just get a message "the web server is already configured for ColdFusion". Be that as it may... not the instance of ColdFusion I want to connect it to! If I remove the existing connector to whichever instance is already connected, I can then connect the other one no problems. Not that this helps, but it demonstrates that the CF instance can connect to Apache. This all used to be fairly straight fwd under older versions of CF and JRun :-( The only docs I have found are on the "Connect multiple Apache virtual hosts on a web server to a single ColdFusion server" page, but that specifically only deals with a single CF instance. There is no equivalent page for multiple CF instances. I'm kinda hoping I can move some of the mod_jk config into my virtual host entries in httpd-vhosts.conf (this is how it used to work for JRun), but I've no idea what to put where. I think I've covered all the necessary info here? If not, sing out and I'll add more. Thanks. PS: tried to specifically tag this as "ColdFusion-10" as the answer will be different from previous CF versions, but it won't let me cos my rep on this site is too low (odd how it doesn't consider my rep from other S/O sites...). If someone with sufficient rep can add it, that'd be cool: it's probably a valid tag to have. Ta.

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  • confused about variables in bash

    - by gappy
    I know that variables in bash have no type, but am confused about the value they are assigned. The following simple script works fine in bash #!/bin/bash tail -n +2 /cygdrive/c/workdir\ \(newco\,\ LLC\)/workfile.txt > \ /cygdrive/c/workdir\ \(newco\,\ LLC\)/workfile2.txt However, the following does not #!/bin/bash tmpdir=/cygdrive/c/workdir\ \(newco\,\ LLC\) tail -n +2 $tmpdir/workfile.txt > $tmpdir/workfile2.txt Is there an explanation for this behavior?

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  • Windows 7 System Tray Date Display Not Appearing

    - by Anton
    I'm using Windows 7 RC and for some reason, the date won't show at all on my system tray. It used to for a while, but one day it just stopped (I didn't even notice it until someone pointed it out). So I've been trying to fix it, by customizing the format of the date, resetting to defaults, etc... But nothing works, it still doesn't show. The time appears fine.

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  • Desktop icons and taskbar not shown in Windows XP

    - by phoenix
    Hi, I am not able see any desktop icons, taskbar in my Windows XP system. Also none of the keyboard shortcuts like Win Key + R, Win Key + E are not working. Yesterday I installed AVG 9.0 in my machine and was working fine. But today when I started the system an svchost error occured saying "the memory at location could not be written". What would be the cause of this issue? Thanks in advance

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  • Timezone reset on Amazon AMI update

    - by Jeff
    I have a server set up through Amazon AWS. It's Amazon's RHEL-based AMI. When I initially booted up the machine, I set the proper timezone by creating a symlink: ln -sf /usr/share/zoneinfo/America/Los_Angeles /etc/localtime This works just fine, but whenever Amazon provides an update to their AMI the timezone automatically reverts to UTC. Is there a way around this or does it have to be manually set after each update?

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  • Default language in Windows 7

    - by Rodnower
    Hello, I have Windows 7, and I set up English like default language, but every time I open new window keyboard layout become be non English, but second language, and it occurs only when I login with local admin, when I login with domain user, all work fine... Any idea what this voodoo is? Thank you for ahead.

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  • What is chroot in proftpd

    - by Saif Bechan
    I am using proftpd and on every login I get the following message: Apr 4 08:26:23 mydomain proftpd[4240]: mydomain.com (xxx.xxx.xxx.xxx[xxx.xxx.xxx.xxx]) - FTP session opened. Apr 4 08:26:23 mydomain proftpd[4240]: mydomain.com (xxx.xxx.xxx.xxx[xxx.xxx.xxx.xxx]) - Preparing to chroot to directory 'path-to/domain' Can anyone explaom to me what this means. Everything works fine however, the are no other messages except for these 2.

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  • Ubuntu 10.04 Lucid on IBM Thinkpad T41

    - by naugtur
    I tried to boot my T41 from a Ubuntu Lucid liveCD and it worried me. The white text on violet background had green pixels around it. After the splashscreen went away Ubuntu popped an alert that the installer had some errors and will now run live. The live system worked fine I guess... Did anybody experience such behaviour?

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  • Chrooted pygopherd fails to find new directories and files

    - by Carsten R
    I tried to setup a Pygopherd on my server. The default setup works fine, but when I try to change the gophermap to point to a new directory with a new file, I get an error message in my gopher client: --- [1] '/path/to/gopher/newdir' does not exist (no handler found) First I thought this is caused by the chroot in which pygopherd runs as default. But when I disable the chroot, the same error comes up. Did anyone successfully set up pygopherd or knows about a better gopher server?

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  • Failed to start BIND : Unknown error

    - by Gabriel
    Hello, I am using Debian Linux 5.0 with Webmin and Virtualmin. Everything works fine except the BIND DNS Server. It says Failed to start BIND : Unknown error. Any ideas? I've googled about this problem and found some answers, but didn't help me. I still couldn't start it. Thanks in advance for any help! Gabe

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  • Loading GUI on host machine through SSH with X11 forwarding

    - by cdated
    I've got applications on my host machine running fine by runnning: $ssh -X user@host Welcome to host $firefox Firefox proceeds to run in client display from the host machine. How do I get firefox to load on the host machine's display so I could remotely manage the host machine's running GUI applications? I need my application to load a GUI on a remote machine without walking to that machine.

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  • Macbook memory upgrade question

    - by James Evans
    I've read some conflicting articles on Macbooks and memory upgrades. Some say you have to buy the "special" Mac memory (bulls$%t), others say manufacturers like Partriot and Ocz will work fine. My Macbook (non-pro) is about 6 mos old with it's 2 GB of memory (SO-DIMM 1066MHz DDR3). Does anyone have any definitive information of what will work? Thanks!

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  • Macbook memory upgrade question

    - by James Evans
    I've read some conflicting articles on Macbooks and memory upgrades. Some say you have to buy the "special" Mac memory (bulls$%t), others say manufacturers like Partriot and Ocz will work fine. My Macbook (non-pro) is about 6 mos old with it's 2 GB of memory (SO-DIMM 1066MHz DDR3). Does anyone have any definitive information of what will work? Thanks!

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  • Use WMI to detect a USB drive was connected, regardless of whether it was mounted?

    - by Seth Petry-Johnson
    I am writing a script that uses MS KB 823732 to temporarily prevent users from plugging in new USB storage devices. This works fine, and the HKLM\...\Services\UsbStor registry key successfully blocks newly-connected devices from being accessed. Is there a WMI event that will tell me that a drive was connected, regardless of whether it was mounted? I tried querying for __InstanceCreationEvent but that is apparently raised only after the drive is mounted and made available, which doesn't fit my requirements.

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  • How to export a brochure into PDF with each layout as a page?

    - by nhj
    I have created a 3-fold brochure in Mac iWork - Pages. If I print the brochure then I can 3-fold it and everything is fine. But if I want to export as PDF then I get a 2-A4 size pages, and this distorts the user the order of the pages, I would like to export each layout as a separate page. The 'Layout Break' option is diabled and I don't know how to enable it? Any ideas? Thanks.

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  • Is Gmail Being Blocked by my ISP?

    - by james
    I asked this over at superuser but they weren't able to help, so I was hoping the sysadmins here will be able to advise as to what's wrong. Although the issue here is with a PC and not a server it still deals with networking so I hope it's not too irrelevant. The Issue: I have a desktop on which I cannot access Gmail and also youtube sign in (I believe since youtube is owned by google they both use the same sign in system). On other computers that uses the same connection via a wireless router I can access both gmail and youtube sign in just fine. On this computer which doesn't have a wireless card and so I have to connect via Ethernet cable (connected to a USB converter since the Ethernet port doesn't work anymore) I can access all sites and services including things like aol and hotmail. But only when it comes to gmail, do I get complete and utter throttling. I even turned off my AV ad Firewall momentarily and no luck. The gmail log in page starts to load and by mid point it just stays there loading and loading and loading... never ends. I tried everything, I reset the modem and router multiple times. I reinstalled my operating system from a vista to a windows 7 hoping that a complete reinstall would solve the issue, but no luck. And yes, I am going to call my ISP but not to solve this issue, but to cancel them. I want to upgrade to cable from DSL anyway. I didn't mention my ISP because I'm not sure if that is within the rules (if it's okay some one let me know and I will). P.S. All this happened one day, before that gmail was perfectly accessible in this computer. I can't remember anything special happening on that day prior to this. The only thing I can think of is, my ISP or Google itself is blocking this computer based on it's mac address, but I don't know if that's even done. Additional info: PC: Windows 7 Ultimate 32 bit Connection Type: DSL Connecting Medium: Ethernet cable via USB converter EDIT: I should mention I can access gmail and youtube just fine through a IP proxy service.

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  • iTunes Album Artwork not available in all Sizes

    - by develroot
    I used iTunes and everything worked fine until today. When I try to display Large / Medium artwork, not all the artworks are displayed. However, when I try to display the small artworks, everything works. Large (buggy): Small (normal): Is there a way to fix this? Tech Specs: iTunes on Windows 7 x64, v. 10.3.1. All the artworks are stored locally on my hard drive (.jpg files (i added them manually)).

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  • What setting can cause a monitor to flicker under X11?

    - by BCS
    I've been dinking with the xorg.conf file on my system and now when I try to start X I get a flickering effect and no usable image. I think (and this is just a guess) that it's a settings out of bound error of some kind but I don't know what setting. I'm almost completely sure that the hardware is good given that everything is brand new.and works just fine in text mode. Any ideas?

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  • Ctrl-C behavior in gnome-terminal

    - by sev
    I have installed Ubuntu 10.04. It works fine, but when I press Ctrl-C in gnome-terminal I get: user@desktop:~$ ^C user@desktop:~$ ^C user@desktop:~$ In Ubuntu 9.04 (I did have it before) it was so: user@desktop:~$ user@desktop:~$ user@desktop:~$ Who knows how can I fix this?

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