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  • overload environment

    - by Richo
    I've recently switched across to nesting my home directory across all my machines in an svn repo, meaning that my utility scripts, configuration (irssi, vim, zsh, screen etc) as well as my .profile and so forth are easier to keep up to date across all the places I login. I use a set of sourced .local files to override them on a per site basis as required. As it stands, many of my scripts inherit some form of configuration, and for the most part I've been setting an environment variable in .profile, and then if needed on a per site basis overriding it in .profile.local This works great, but are there pitfalls in having a stack of environment variables? If I take my default environment from within an X session before any of my personal configuration I have not even increased it by 50% but some of the machines I work on are low resource, am I bloating my system unneccessarily, or being needlessly paranoid? Should I start moving this config into seperate flatfiles that are loaded as needed? This means extra infrastructure, or alternately writing a single module for storing config that all of my utilities can inherit.

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  • Configuring memcached for a particular scenario

    - by pradeepchhetri
    I have a web application which queries opentsdb server(which in backend using Hbase cluster) for the datapoints of different metrics and using dygraph javascript graphing library, I am plotting those metrics. Since getting all the datapoints of past one day from opentsdb for a particular metric is itself taking nearly 2 seconds, my application which is plotting nearly 25 metrics is becoming very slow. In order to reduce this latency, I am thinking of using memcached module of php5 for caching all the queries. But I have few questions regarding memcached. Is there any way I can configure memcache to keep on updating its cache in the background by running some command line queries after particular interval of time. Is there any way I can configure memcache to always reply for a query using cache instead of first updating its cache because my application just plots datapoints for past one day. Missing out some datapoints is not that critical.

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  • How can I see how much bandwidth each Apache Virtual Host is using?

    - by pkaeding
    I have Apache set up to serve several Virtual Hosts, and I would like to see how much bandwidth each site uses. I can see how much the entire server uses, but I would like more detailed reports. Most of the things I have found out there are for limiting bandwidth to virtual hosts, but I don't want to do that; I just want to see which sites are using how much bandwidth. This isn't for billing purposes, just for information. Is there an apache module I should use? Or is there some other way to do this?

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  • HP p410i array controller - what happens if i add memory?

    - by James
    I have a p410i array controller that only has 256ram. We want to create a raid 5 so we have procured a 512 write back cache module. If we install the write back cache, will this erase the existing raid information. The server currently has 2 disks in raid 1. 6 are spare waiting for an upgrade to create a raid 5. the concern is if we replace/upgrade the memory for the controller, we will wipe the existing production raid 1 array. Thanks in advance.

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  • Getting some perl script errors on execution of svnnotify

    - by user2474633
    I installed svnnotify:2.84, perl module 5.10 for subversion 1.7.11 on redhat release 6. And i am using this command in post-commit hooks to get notified svnnotify --repos-path "$1" --revision "$2" --from [email protected] \ --to-regex-map [email protected]="branches/Test_branch12" \ --smtp xxxxxx.com HTML::ColorDiff >> /tmp/notify.txt 2>&1 once the commit is successful i can see the below mentioned error in the output file. Use of uninitialized value $[0] in exec at /usr/local/share/perl5/SVN/Notify.pm line 2332. Can't exec "": No such file or directory at /usr/local/share/perl5/SVN/Notify.pm line 2332. Use of uninitialized value $[0] in concatenation (.) or string at /usr/local/share/perl5/SVN/Notify.pm line 2332. Cannot exec : No such file or directory Child process exited: 512 Can anyone help on this.

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  • Why aren't there 8gb RAM modules yet?

    - by user49951
    Why is RAM module development seemingly stuck at the same size for a while now (a couple of years)? I bought 2x2gb modules 2 years ago, and now it's all the same size, with prices even bigger. I want more memory, because I work a lot on my computer and I just need it. What is going on? Hardware/memory progress was being made constantly until these couple of years, and I'm a big computer user for over 15 years. Why isn't here 4gb/8gb modules yet? I would gladly replace my DDR2 motherboard for a DDRX one if it had at least 4gb DDRX modules for a reasonable price. Now we have a situation with very cheap usb drives reaching 64gb size, and a ram modules with pathetic 2gb size. Sounds like some sort of conspiracy.

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  • How to limit server to specific IP addresses with mod_authz_host?

    - by BeeDog
    Hi! I am very new to this area, so please bear with me. :) Right now I am running an Apache HTTP server on my setup, a very basic configuration. The website hosted on it is accessible from anywhere, and I want to limit the access to a specific IP address range. I've looked into this and I found that one Apache module called mod_authz_host handles this. http://httpd.apache.org/docs/2.2/mod/mod_authz_host.html The problem is, I haven't managed to find documentation that explains well how to actually do the stuff. How do I actually make sure only a certain range of IP addresses can access my site/server? The machine is running Ubuntu Server 10.10, the web files are stored in /var/www/, the apache2 daemon has its stuff stored in /etc/apache2/ and /usr/lib/apache2/modules/*. Thanks in advance, and sorry if this is a stupid question!

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  • Do TCP/UDP connections add to the Windows incoming connection limit?

    - by user47899
    Hi all, I've tried to figure out what Microsoft means by "Windows sockets" and it all seems very vague. Basically we have customers that sometimes try to set up workgroups with close to 10 Windows XP computers with drive and printer shares and we're worried that some of the non-Windows Ethernet devices on the network will cause issues with the inbound connection limit outlined here where only 10 inbound connections can be active at one time. For example, there is an Ethernet Caller ID device that broadcasts UDP packets to all computers, and a kitchen display system that likewise broadcasts UDP. They may also have incoming TCP packets for our custom online ordering module. Do these TCP/UDP connections count toward the inbound connection limit? I'm aware that Windows 7 has increased the limit to 20 but we might have future customers that will push that limit. Thanks in advance

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  • disable everything in update-motd.d dir in ubuntu server

    - by senzacionale
    mitjab@server:/etc/update-motd.d$ dir 00-header 10-help-text 91-release-upgrade 98-fsck-at-reboot 99-footer mitjab@server:/etc/update-motd.d$ i need to remove all auto updates or notifiers in my ubuntu server becouse it is to slow. How can i remove or disable it. Now when i login to server it takes 30s to see server when i write username and passwd. How can i disable all this.. if i run mitjab@server:/etc/update-motd.d$ update-motd --disable /usr/bin/python: can't find '__main__' module in '/usr/share/command-not-found'

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  • APC on PHP 5.4 does not seem to be installed after installation

    - by Burning the Codeigniter
    I've recently upgraded to PHP 5.4 from 5.3.6, I did the command apt-get upgrade php5 with the custom PHP 5.4 repo which I added to the apt-get repositories, now that I upgraded, I restarted php-fastcgi and php5-fpm the APC does not seem to be installed with it after I did pecl install apc it seems to configure and install with the details below: Configuring for: PHP Api Version: 20090626 Zend Module Api No: 20090626 Zend Extension Api No: 220090626 But in my phpinfo() I get this: PHP API 20100412 PHP Extension 20100525 Zend Extension 220100525 Which I don't understand, how can I configure PECL to install with PHP 5.4 with my version, my installation with apc.so is stored to /usr/lib/php5/20090626/ however in /usr/lib/php5/ I have two PHP versions: 20090626 20100525 How can I remove either one and leave PHP 5.4 and manage it to install apc in the correct PHP version? I'm running Ubuntu 11.04 on my server. I need help on this please.

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  • Memory works fine separately, but not together

    - by patersonjs
    I've been given four 1GB Corsair DDR2 memory modules, and am trying to fit them into my computer but am getting BSOD on Windows XP and errors in Memtest86+. I've tried to identify if one particular module is faulty by trying them in pairs. They work fine in pairs, but when all four are inserted, Memtest86+ reports errors. The motherboard is an Asus P5N-E with dual channel support and the modules are all the same model (same speed, capacity and timings) but one pair is a different hardware revision. One is v2.1 and the other is v2.2... the voltages are the same too. Would this minor difference be a possible cause of the problem? I've got the BIOS memory timing settings all at AUTO - should I manually set the timings?

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  • Puppet - pass variable with a file create command

    - by Tim Brigham
    I need a way to pass a given variable - lets say thearch - to several different files within a given class. I need to be able to state the contents of this variable for each file individually. I have tried the following: file { "xxx": thearch => "i386", path => "/xxx/yyyy", owner => root, group => root, mode => 644, content => template("module/test.erb"), } This doesn't pass this variable so I can use it with a <%=thearch% statement within the erb file as I expect. What am I doing wrong here?

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  • CF64 on Server 2008x64 breaks pretty much everything else, how to fix?

    I just installed CF64 on a WinServer2008x64 machine. Previously a whole array of classic ASP and ASP.Net apps were functioning, after the CF install they're not. I'm getting an http 500 on everything not coldfusion. I believe it's a mapping issue. CF seems to have dropped a wildcard handler mapping into the IIS config Module IsapiModule Notification ExecuteRequestHandler Handler AboMapperCustom-89420 Error Code 0x800700c1 The upside (if you can call it that) is that the CF install took and seems to be functioning. It appears to have dropped in

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  • Boot Linux from DOS (with loadlin.exe etc)

    - by dreamlax
    I have been using the latest version of loadlin.exe (version 1.6e). It works on some machines but on others I get "no place after kernel for initrd". The kernel is about 5MB in size (non-modular) and my initrd image (decompressed) is about 8MB. One route that I could take is to enable module support and offload some of the weight of the kernel into the initrd image but I'm not confident this will rectify the issue. Are there any alternatives to loadlin.exe that are capable of loading Linux from a booted DOS session? I basically have a series of DOS tools that I'd like to run one after another and then boot into Linux, which loadlin.exe seems to be working very well for except on some machines.

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  • How to configure LAMP server for iOS social/chat app?

    - by andufo
    I'm on the last developing phase of a social networking app for iOS that has a chat module. Right now I'm trying to figure out the best way to achieve these features: Send message instantly to another user. If other user is online, delivery should be instantly. If user reads the message, the remitent should be notified of that action. If a user visits my profile, I should be notified instantly. What would be, in your opinion, the best approach to achieve that experience? The server is CentOS 5.6. I've previously reviewed XMPP, sockets, but I'm still unsure on what the best approach is. Any opinions and resources will be much appreciated.

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  • How to avoid loop limitation in a openvz container?

    - by mat.viguier
    On a openVZ containing Deb7 I need to lock the maximum size of a folder, which is used to upload on a php based web server. The directory is synced, so I have to lock the maxsize. MAXSIZE should be upgradable by adding some physical disk later ... I want to use a file as a block device for a file system. So I have done : dd if=/dev/zero of=/disk2/filesystem.dat bs=1M count=100 Then, I made the filesystem on it mkfs.ext4 filesystem.dat Then I tried to mount it : mkdir /opt/filesystem ; mount /disk2/filesystem.dat /opt/filesystem My OpenVZ (it is on a VPS) has no loop module in the kernerl. So I got Could not find any loop device as usual under OpenVz So i think I have to use FUSE, but I really do not know HOW .... Any idea on locking the size of directory under OpenVZ ?

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  • How can I enable encryption for SQLite3 in PHP5.3?

    - by meouw
    The php manual for SQLite3::open has this information: public bool SQLite3::open ( string $filename [, int $flags = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE [, string $encryption_key ]] ) Opens an SQLite 3 Database. If the build includes encryption, then it will attempt to use the key. I would like to use encrypted SQLite databases for a project I'm working on, but I can't find any information anywhere on how to build the SQLite module including encryption. Does anyone know how to do this? Perhaps it's so obvious no one has published any information or perhaps only commercial modules are available. I've noticed that the developers of SQLite offer a proprietary encryption extension. Is this the only way to go?

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  • Make nginx avoid cache if response contains Vary Accept-Language

    - by gioele
    The cache module of nginx version 1.1.19 does not take the Vary header into account. This means that nginx will serve the same request even if the content of one of the fields specified in the Vary header has changed. In my case I only care about the Accept-Language header, all the others have been taken care of. How can I make nginx cache everything except responses that have a Vary header that contains Accept-Language? I suppose I should have something like location / { proxy_cache cache; proxy_cache_valid 10m; proxy_cache_valid 404 1m; if ($some_header ~ "Accept-Language") { # WHAT IS THE HEADER TO USE? set $contains_accept_language # HOW SHOULD THIS VARIABLE BE SET? } proxy_no_cache $contains_accept_language proxy_http_version 1.1; proxy_pass http://localhost:8001; } but I do not know what is the variable name for "the Vary header received from the backend".

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  • Linux (Ubuntu) USB Auth

    - by themicahmachine
    I want to be able to authenticate with PAM using a USB drive with a file on it. I've read about how to do this with a PAM module that reads the specific USB hardware ID of a device, but if the device malfunctions or is lost, there would be no way to authenticate. I would prefer to use the method BitLocker uses, requiring a particular file to be found on the drive in order to authenticate. That way I can keep another drive in a secure location as a backup. Any other suggestions are welcome. I just want to require a higher level of security that just a password.

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  • can /usr/src be a sym link?

    - by lord.didger
    I want to store all source code of programs I have installed in /usr/src. However, due to size of the drive I made a sym link /usr/src that points to ~/src. That was nice. Unfortunately, that caused virtualbox-dkms to fail to build the virtualbox kernel module because of a symlink within the linux-headers-*-common. 'script' points to ./../lib/linux-kbuild-3.1/scripts what is fine in /usr/src directory but wrong in ~/src. Can I bypass this problem or the only solution is to store sources within the directory /usr/src?

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  • Puppet, Windows, and UAC

    - by usedTobeaMember
    Is it possible to use Puppet on Windows where UAC is enabled? Does Puppet have any method for automatically saying yes to UAC prompts for a software install? My module does the following workflow: Downloads an MSI file locally from the Puppetmaster Creates a local batch file using template function which does cmd.exe /c msifile.msi /i /quiet .... Runs bat file in an Exec. Unfortunately, it fails due to UAC, I am wondering how people are working around UAC in their Windows Puppet environments. The Puppet documentation seems to only talk about Puppet's own executable in regards to UAC.

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  • Is there a way to expose ports when the three default firewalls were disabled

    - by Nactus
    I think I disabled the three firewalls that come with FreeBSD (just for experimentation purposes). I checked the modules that load with the kernel (using "kldstat"). The only modules that load are: kernel -- ng_socket.ko, netgraph.ko, ng_mppc.ko and rc4.ko). I'd like to know what module is still blocking my ports now. After removing all firewall options from the rc.file and re-compiling the kernel without the pf option (or any firewall for that matter), I can't still open ports freely. How does it work exactly? Thanks.

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  • apache: lists of all directives for a context?

    - by ajsie
    in the apache online documentation each directive could belong to a context eg: server-config, virtualhost, directory, .htaccess and so on. i wonder if there is a list of all directives belonging to each context? eg. a list with all directives for virtualhost so i know exactly which one i can use? and also, where can i find directives for apache modules? on their page or does each module has its own page with documentation (eg. mod_rewrite)?

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  • Possible? OpenVPN server requiring both certificate- AND password-based login (via Tomato router firmware)

    - by Eric
    I've been using Shibby's build of Tomato (64k NVRAM version) on my Asus N66U router in order to run an OpenVPN server. I'm curious whether it's possible to setup this OpenVPN server to require both a certificate AND a username/password before a user is allowed access. I noticed there's a "challenge password" entry when filling out the certificate details, but everyone says to leave it blank "or else"; I have no idea why, and I can't find an explanation. In addition, I've Google'd this issue a bunch and have noticed people talking about a PAM module for OpenVPN in order to authenticate via username/password, but that appeared to be an either/or option; in other words, I can force authentication via username/password OR certificate. I want to require both. Is this possible? If so, how?

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  • How can I log the response header and body in apache?

    - by acme
    I need to determine whether the server (Apache 2) is returning the full contents of a page along with its correct header or not. I have a PHP-script that is executed successfully, but the browser is getting only half of the html content, it's simply cut off. The client infrastructure is pretty complicated, using Novell BorderManager Proxys and stuff. To ensure the server is doing its job fine I want to log both header and body of the reponse. How can I achieve this? I looked into the mod_log_config module of apache (which is already installed and ready to be used), but honestly I didn't quite manage to configure it to output header and body somewhere. edit: I managed to log the header with LogFormat "%h %l %u %t \"%r\" %s %b \"%{HEADER_NAME}o\"" common2 CustomLog /var/log/apache2/response.log common2 But unfortunately the mod_log_config formats don't support the whole content body. Can anyone help?

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