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• Windows 7 Locking up Randomly

  - by Michael Moore

  I've got a Windows 7 machine that is locking up randomly. It can be in the first thirty seconds, or it can be hours later. There is nothing specific I can find that is running when it happens. When it locks, the screen doesn't change, but nothing moves. The waiting icon stops, the mouse stops, keyboard doesn't work, etc. I've even tried the crash on ctrl-scrl registry hack, and it won't even dump the kernel. I've run hardware diagnostics on the RAM and it doesn't find any problems. I would think it is a hardware issue, but on this exact same machine, I can run 64 Bit Ubuntu and it has zero problems. I've even tried reinstalling Windows7 from scratch, and it still happens. Anyone have any ideas? Any good diagnostic tools to recommend? Thanks! Michael

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• Apache + LDAP Auth: access to / failed, reason: require directives present and no Authoritative hand

  - by Karolis T.

  Can't solve this one, here's my .htaccess: AuthPAM_Enabled Off AuthType Basic AuthBasicProvider ldap AuthzLDAPAuthoritative on AuthName "MESSAGE" Require ldap-group cn=CHANGED, cn=CHANGED AuthLDAPURL "ldap://localhost/dc=CHANGED,dc=CHANGED?uid?sub?(objectClass=posixAccount)" AuthLDAPBindDN CHANGED AuthLDAPBindPassword CHANGED AuthLDAPGroupAttribute memberUid AuthLDAPURL is correct, BindDN and BindPassword are correct also (verified with ldapvi -D ..). Apache version: Apache/2.2.9 (Debian) The error message seems cryptic to me, I have AuthzLDAPAuthoritative on so where's the problem. EDIT: LDAP modules are loaded, the problem is not with them being missing. # ls /etc/apache2/mods-enabled/*ldap* /etc/apache2/mods-enabled/authnz_ldap.load /etc/apache2/mods-enabled/ldap.load EDIT2: Solved it by changing funky Require ldap-group cn=CHANGED, cn=CHANGED line with Require valid-user Since AuthzLDAPAuthoritative is on, no other auth methods will be used and valid-user requirement will auth via LDAP. (right? :/)

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• puppet service not stopping service

  - by Gregg Leventhal

  notice ("This should be echoed") service { "iptables": ensure => "stopped", } This does not stop iptables, I am not sure why. service iptables stop works fine. Puppet 2.6.17 on CentOS 6.3. UPDATE: /etc/puppet/manifests/nodes.pp node 'linux-dev' { include mycompany::install::apache::init include mycompany::config::services::init } /etc/puppet/modules/mycompany/manifests/config/services/init.pp class mycompany::config::services::init { if ($::id == "root") { service { 'iptables': #name => '/sbin/iptables', #enable => false, #hasstatus => true, ensure => stopped } notice ("IPTABLES is now being stopped...") file { '/tmp/puppet_still_works': ensure => 'present', owner => root } else { err("Error: this manifest must be run as the root user!") } }

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• Should I upgrade my LinkSys WRT54GL firmware?

  - by Reid

  I have a LinkSys WRT54GL v1.1 which currently has stock firmware version 4.30.7. I see that version 4.30.14 is available. The router works fine now, and the release notes look uninteresting except for one line in v4.30.9: "Resolves issue with Linux kernel vulnerability". I have remote management turned off. I'm aware of the 3rd-party firmwares but the stock firmware works fine for me at the moment, so I don't have an interest in those. Is the status quo fine or should I upgrade the firmware? (It's a bit of a pain since the config has to be saved and reloaded, and obviously any mucking with firmware is risky.)

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• Understanding top output in Linux

  - by Rayne

  Hi, I'm trying to determine the CPU usage of a program by looking at the output from Top in Linux. I understand that %us means userspace and %sy means system/kernel etc. But say I see 100%us. Does this mean that the CPU is really only doing useful work? What if a CPU is tied up waiting for resources that are not avaliable, or cache misses, would it also show up in the %us column, or any other column? Thank you.

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• Installing Bugzilla on Ubuntu 9.04 and Plesk

  - by makeflo

  Hey guys. I'm trying to install the latest Bugzilla version on my ubuntu server. (Want to use a subdomain like bugs.domain.com) I already installed all necessary perl modules and check_modules.pl doesn't show any errors. But when I'm running the testserver.pl script I get the following: TEST-OK Webserver is running under group id in $webservergroup TEST-FAILED Fetch of images/padlock.png failed I'm also not able to visit ANY file within the bugzilla folder from the browser. I'm always getting a 404 error. The bugzilla folder and all containing files are set to apache as the owner. I tried to enter the apache configuration form the installation guide in the http.include file of the domain and in the vhosts.conf file of the subdomain as well. I don't know what to do... Playing with plesks' suexecgroup doesn't bring any solution... I hope you can help me! Thanks in advance!

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• How to find the /dev name of my USB device

  - by mustafa

  I am running Ubuntu 11 on VmWare on Windows XP. I want to format an SD card in Ubuntu. But, I can't figure out which /dev/xxx device the SD card is. I plug the card into the built-in socket of my laptop. I "safely remove" the device in Windows. Then, I "connect" the PCMCIA reader in VmWare. Now, I was supposing to see a new device like /dev/sdx. But, it doesn't appear :( How can I find what the name of my USB device's name and mount it? /var/log/message is empty. Here is the output of dmesg: [ 5268.927308] usb 2-1: new full speed USB device number 12 using uhci_hcd And, here is the last lines of /var/log/syslog: Oct 31 18:51:21 ubuntu kernel: [ 5268.927308] usb 2-1: new full speed USB device number 12 using uhci_hcd Oct 31 18:51:21 ubuntu mtp-probe: checking bus 2, device 12: "/sys/devices/pci0000:00/0000:00:11.0/0000:02:00.0/usb2/2-1" Oct 31 18:51:21 ubuntu mtp-probe: bus: 2, device: 12 was not an MTP device

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• Amazon EC2, fastest way to get a node into an existing cluster

  - by imaginative

  I'm new to Amazon AWS. A lot of the time I hear about people folks spawning instances and almost instantly putting them behind a load balancer and into an existing cluster. In the traditional world of managed machines, this would include provisioning hardware, installing an OS, configuring the network on the machine and once the network is available, use a tool of your choice such as CFengine, Puppet or Chef to bootstrap the machine based on its class. It seems like there are "shortcuts" that are able to get a server of a particular class up and running in Amazon EC2. If I have a particular stack running on my server, such as erlang, tomcat6 etc.. what's the fastest way to get these up and running and hooked into Amazon's load balancer? From network, to software stack to kernel tuning? Is it a combination of creating an AMI then running a tool like Puppet against the new instance? Any idea

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• Using symbolic links with git

  - by Alfredo Palhares

  I used to have my system configuration files all in one directory for better management but now i need to use some version control on it. But the problem is that git doesn't understand symbolic links that point to outside of the repository, and i can't invert the role ( having the real files on the repository and the symbolic links on their proper path ) since some files are read before the kernel loads. I think that I can use unison to sync the files in the repo and and the their paths, but it's just not practical. And hard links will probably be broken. Any idea ?

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• Scaling up an apache server

  - by pehrs

  I have an Ubuntu server running apache2 which i expect to be hit by around 500-1000 (concurent) users for a limited amount of time. The server serves a mixture of custom (rather light) php pages connected to a postgresql db (around 20 Mb in size) and static content. The hardware is stable and pretty beefy: Intel Xeon E5420 @ 2.5 GHz 12 GB RAM During previous rushes on this server I have increased ServerLimit, the MaxClients for the MPM modules and decreased Timeout and KeepAliveTimeout. It has worked, but been sluggish and I have a feeling more can be done. How would you suggest configuring the Apache server to handle this kind of load?

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• Is there a stable Linux distro using btrfs?

  - by chrish

  I'm a big fan of ZFS on FreeBSD (I've been using it on my home server since before it got stable; bleeding edge, baby!) and I'd like to try out btrfs to see how that's evolving. Since it's still largely in development, none of the usual mainstream distros have btrfs as an option. I haven't used Linux in a bunch of years, so I don't really know what my best options are for giving btrfs a try. Requirements: easy to install btrfs supported without requiring me to rebuild the kernel Thanks!

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• How to get Atheros ar242x wireless adapter working under Debian Linux?

  - by Mark

  Does anybody know how to get the Atheros ar242x wireless adapter working under Debian Linux (5.0.2 and/or 5.0.3)? My Debian live CDs and install CDs both don't like this card at all. Curisouly, it seems to work on other, Debian-based, Linuxes. Is this a free/non-free Driver issue? I know Debian gets mardy about that. Although for what it's worth, the Live CD doesn't seem to detect my wired LAN connection either... Specifically this is on a Samsung R610 laptop (some version of which seem to have an intel wireless adapter - this one definitely doesn't!) I've tried all sorts of things but obviously on a live CD installing software is limited. I've also tinkerering with network config files and kernel modules etc but to no avail.

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• google sitemap generator installation selinux

  - by adnan

  when i trying to install google sitemap generator i received this error Change security context of to system_u:object_r:httpd_modules_t install: WARNING: ignoring --context (-Z); this kernel is not SELinux-enabled Program files successfully copied. ./install.sh: line 488: 14284 Segmentation fault "$DEST_DIR/$BIN_DIR/$DAEMON_BIN" update_setting $update_setting_flags "apache_conf=$APACHE_CONF" "apache_group=$APACHE_GROUP" > /dev/null after choosing the submiting file settings i tried to unistall it & excute this getenforce try again but the same problem when i enter this dir /etc/sysconfig/selinux. it is not contain the selinux file my os centos 6 X86_64

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• Make GRUB automatically boot Ubuntu

  - by Matt Robertson

  I am running a dual-boot with Ubuntu (10.10) and Windows 7. Recently I edited my /boot/grub/grub.cfg file to only show one version of Ubuntu (as opposed to several kernel versions) and Windows, simply by commenting out all other menu entries. My question is if I can edit GRUB to just boot a specific entry automatically. I tried removing all other menu entries, but GRUB still showed the menu with only one entry. I've also considered just setting the timeout to either 0 or 1 second, as this would basically achieve the same thing. What is the best way to do this?

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• Kubuntu Monitor Out of Range

  - by uncleo

  My X server seems to be faulty, but I don't know why. I had some problems last week with a new motherboard, but they seemed to be resolved. Today, I updated Kubuntu and restarted, but my Viewsonic VX900 LCD monitor shows the splash screen for several seconds, then displays the message "Out of Range" I have tried various kernels in Grub, some in recovery mode, most do the same thing. No key combinations bring up a shell prompt like I expect. The one exception was a very old kernel, that would only mount the file system as read-only, so I can't fix up the xorg.conf file. Is there anything to be done?

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• php-fpm start error

  - by Sujay

  I am using php-fpm. I recently recompiled php for including imap functions. But on php-fpm start it gives the following error: Starting php_fpm Error in argument 1, char 1: no argument for option - Usage: php-cgi [-q] [-h] [-s] [-v] [-i] [-f ] php-cgi [args...] -a Run interactively -C Do not chdir to the script's directory -c | Look for php.ini file in this directory -n No php.ini file will be used -d foo[=bar] Define INI entry foo with value 'bar' -e Generate extended information for debugger/profiler -f Parse . Implies `-q' -h This help -i PHP information -l Syntax check only (lint) -m Show compiled in modules -q Quiet-mode. Suppress HTTP Header output. -s Display colour syntax highlighted source. -v Version number -w Display source with stripped comments and whitespace. -z Load Zend extension ................................... failed What could be the problem? Is it in php-fpm.conf or php.ini.

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• Computer freezes for 2+ seconds, mouse still moves

  - by xsaero00

  I have this problem on my workstation. The computer would effectively freeze for 2-5 seconds for no apparent reason, then continue as normal. While frozen the mouse would still be movable, but only on one of screens in my multi-screen setup. What can be the likely cause. System: CPU: i7-920 Memory: 12G of Patriot DDR3, 6 modules OS: SLED 11, Suse Linux Enterprise Desktop, using Gnome Main board: Asus P6T Video: two Nvidia 9500GT connected to three displays I am using memory at recommended settings of 8-8-8-1333. It has an XMP profile. Th CPU is a bit overclocked to 3.3 GHz, but my cooling more than allows for it. I ran the computer with all overclocks off and lower memory speed but the issue was still there. Any ideas? Where should I start looking?

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• udhcpc doesn't assign ip address

  - by Diab

  i have a board running linux 2.6.28 and i have one Ethernet interface (eth0) i want dhcp to assign dynamic ip to this interface. i have busybox with udhcpc in the file system and the kernel has the "Pack Socket" enabled so i copied the scripts from "busybox-1.14.1/examples/udhcp" to my board on "/etc/udhcpc/" (i created this directory) and when i run : ifconfig eth0 up the interface is up but without ip address, then running udhcpc -i eth0 -s /etc/udhcpc/sample.script i get the following: note : sample.script contains : "exec /etc/udhcpc/sample.$1" # udhcpc -i eth0 -s /etc/udhcpc/sample.script udhcpc (v1.14.1) started Sending discover... Sending select for 192.168.10.198... Lease of 192.168.10.198 obtained, lease time 691200 but when i check with ifconfig i can see that it didn't assign the ip address to eth0. anyone have an idea why udhcpc didn't assign the ip ? Thanx

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• cannot access new drive through nfs

  - by l.thee.a

  I am running nfs-kernel-server to access my files on my linux machine(ubuntu - /share). The disk I have been using is full. So I have added a new disk and mounted it to /share/data. My other pc mounts the /share folder to /mnt/nfs; but cannot see the contents of /mnt/nfs/data. I have tried adding /share/data to /etc/exports, but it did not help. What do I do? PS: I am looking for another solution than explicitly mounting /share/data on the second drive.

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• Trying get dynamic content hole-punched through Magento's Full Page Cache

  - by rlflow

  I am using Magento Enterprise 1.10.1.1 and need to get some dynamic content on our product pages. I am inserting the current time in a block to quickly see if it is working, but can't seem to get through full page cache. I have tried a variety of implementations found here: http://tweetorials.tumblr.com/post/10160075026/ee-full-page-cache-hole-punching http://oggettoweb.com/blog/customizations-compatible-magento-full-page-cache/ http://magentophp.blogspot.com/2011/02/magento-enterprise-full-page-caching.html (http://www.exploremagento.com/magento/simple-custom-module.php - custom module) Any solutions, thoughts, comments, advice is welcome. here is my code: app/code/local/Fido/Example/etc/config.xml <?xml version="1.0"?> <config> <modules> <Fido_Example> <version>0.1.0</version> </Fido_Example> </modules> <global> <blocks> <fido_example> <class>Fido_Example_Block</class> </fido_example> </blocks> </global> </config> app/code/local/Fido/Example/etc/cache.xml <?xml version="1.0" encoding="UTF-8"?> <config> <placeholders> <fido_example> <block>fido_example/view</block> <name>example</name> <placeholder>CACHE_TEST</placeholder> <container>Fido_Example_Model_Container_Cachetest</container> <cache_lifetime>86400</cache_lifetime> </fido_example> </placeholders> </config> app/code/local/Fido/Example/Block/View.php <?php /** * Example View block * * @codepool Local * @category Fido * @package Fido_Example * @module Example */ class Fido_Example_Block_View extends Mage_Core_Block_Template { private $message; private $att; protected function createMessage($msg) { $this->message = $msg; } public function receiveMessage() { if($this->message != '') { return $this->message; } else { $this->createMessage('Hello World'); return $this->message; } } protected function _toHtml() { $html = parent::_toHtml(); if($this->att = $this->getMyCustom() && $this->getMyCustom() != '') { $html .= '<br />'.$this->att; } else { $now = date('m-d-Y h:i:s A'); $html .= $now; $html .= '<br />' ; } return $html; } } app/code/local/Fido/Example/Model/Container/Cachetest.php <?php class Fido_Example_Model_Container_Cachetest extends Enterprise_PageCache_Model_Container_Abstract { protected function _getCacheId() { return 'HOMEPAGE_PRODUCTS' . md5($this->_placeholder->getAttribute('cache_id') . $this->_getIdentifier()); } protected function _renderBlock() { $blockClass = $this->_placeholder->getAttribute('block'); $template = $this->_placeholder->getAttribute('template'); $block = new $blockClass; $block->setTemplate($template); return $block->toHtml(); } protected function _saveCache($data, $id, $tags = array(), $lifetime = null) { return false; } } app/design/frontend/enterprise/[mytheme]/template/example/view.phtml <?php /** * Fido view template * * @see Fido_Example_Block_View * */ ?> <div> <?php echo $this->receiveMessage(); ?> </span> </div> snippet from app/design/frontend/enterprise/[mytheme]/layout/catalog.xml <reference name="content"> <block type="catalog/product_view" name="product.info" template="catalog/product/view.phtml"> <block type="fido_example/view" name="product.info.example" as="example" template="example/view.phtml" />

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• Full HD video playback acceleration with mplayer on Ubuntu Lucid

  - by pts

  I know that for an NVidia card I can sudo apt-get install nvidia-current mplayer, reboot, and then use mplayer -vo vdpau -vc ffmpeg12vdpau,ffwmv3vdpau,ffvc1vdpau,ffh264vdpau FILE.mkv to get accelerated video playback of H.264 and other codecs, so even full HD videos can be played back with only little CPU. (And there are many other options, e.g. XBMC also supports VDPAU.) But how do I get accelerated video playback if I have a recent ATI or Intel video card on Ubuntu Lucid? How do I figure out if my video card has acceleration built in? The solution has to work with mplayer or mplayer2. It's OK for me to recompile mplayer(2), but I'd prefer installing both the kernel and the X.org X server from a binary package repository.

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• Task Manager does not show memory usage

  - by Robin

  I just noticed this yesterday. I selected different memory columns, none of them worked, and I've tried showing processes from all users. I'm using Win 7. It doesn't slow down my computer or does anything else. I just want to know why and how to fix it. Could anyone help me on this? Thank you cannot post pix :( it is like this: only shows K, without actual number Image Name--------User Name----CPU----Memory (Private Working Set)------Description System -----------SYSTEM ------01-------------------------------K-------NT Kernel &system Smss.exe--------- SYSTEM -----00-------------------------------K-------Win Session Manager Wininit.exe------ SYSTEM ------00-------------------------------K-------Win Start-up Applic It's pretty much the same as http://www.sevenforums.com/general-discussion/56891-my-task-manager-doesnt-show-ram-usage-each-program.html that is the only one i found on google.

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• Weird console problem in linux, usually right before OOM

  - by Kevin Quinn

  So I've noticed this happen more than once. If I remember correctly, this usually happens right before OOM, and/or kernel panic that if you type into a tty and then try to backspace it, the same characters are printed back in reverse. This has been merely an interesting oddity to me in the past, but it happened again recently, and I've gotten more curious about what's actually causing that. (Is it sending the characters back to STD_OUT or something?) Does anyone have any idea? I have a feeling the answer will be interesting. Just so I'm clear, if you typed hello world, then tried to backspace it: hello world..dlrow olleh

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• Apache2 enable .ini mod in /etc/php5/mods-available

  - by GuiTeK

  One can use the a2enmod [module] command to enable mods located in /etc/apache2/mods-available. But what about mods in /etc/php5/mods-available? When I try to enable a mod in this directory (eg. xdebug), I get the following error: ERROR: Module xdebug does not exist! Yet, /etc/php5/mods-available/xdebug.ini exists. I understand a2enmod may work only with *.load files (it makes sense since *.ini files are just configuration files) but then what's the correct way of enabling modules located in /etc/php5/mods-available?

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• How do I find out if mod_security is installed on my apache server?

  - by Haluk

  How can I find out if mod_security is installed on my apache server? I would also like to learn its version. I'm having some upload issues and I tried to disable mod_security using .htaccess. But that started producing 500 internal server errors. I read somewhere that depending on my mod_security version I might not be able to disable it using .htaccess. So I would like to understand if I have mod_security installed and what version it is. I'm on a centos 5 box. Thanks! UPDATE -1 xxxxxxxxxxxxx Does the below output mean I do not have mod_security installed? [root@u11 htdocs]# httpd -l Compiled in modules: core.c prefork.c http_core.c mod_so.c

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