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• Set up server at home for running svn and Bugzilla

  - by erikric

  Hi, I'm a fairly experienced developer, but when it comes to servers and network related stuff, I'm pretty green. We are developing a web site, and I would like to set up a server that can host my SubVersion repository, and also host Bugzilla for when we release a testversion on some users. So what do i need to accomplish this? I have an old computer that can be used. Can I run this on any OS? It currently has Win 7 installed, but I was thinking about going for Ubuntu instead. Any reason to go for one or the other? I guess I need a web server, and I guess Apache will do fine. Do I need something else to let my computer be available from all over the web, or is a web server and a standard internet connection all it takes? A link some good online tutorials would be much appreciated. And then I mean for real dummies ;). I usually find pages that try to explain setting up servers going way over my head.

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• Can't install PHP after apt-get dist-upgrade

  - by WASD42

  I had a server with perfectly running for months classical LAMP installation on Ubuntu 8.04: Linux localhost 2.6.24-23-generic #1 SMP Wed Apr 1 21:47:28 UTC 2009 i686 GNU/Linux DISTRIB_ID=Ubuntu DISTRIB_RELEASE=8.04 DISTRIB_CODENAME=hardy DISTRIB_DESCRIPTION="Ubuntu 8.04.4 LTS" Don't know why I've started apt-get update, apt-get upgrade but everything ended with apt-get dist-upgrade :) Everything gone alright... But now I can't start nor Apache, nor PHP, because PHP was simply deleted. When I'm trying to install it: > apt-get install php5 <...> The following packages have unmet dependencies: php5: Depends: libapache2-mod-php5 (>= 5.2.4-2ubuntu5.17) but it is not going to be installed or php5-cgi (>= 5.2.4-2ubuntu5.17) but it is not going to be installed E: Broken packages When I'm trying to install libapache2-mod-php5: The following packages have unmet dependencies: libapache2-mod-php5: Depends: php5-common (= 5.2.4-2ubuntu5.17) but 5.3.6-6~dotdeb.1 is to be installed E: Broken packages I don't know what 5.3.6-6~dotdeb.1 is and where is this package, because I've already removed dotdeb repository from APT sources :/ Tried to do apt-get update, apt-get upgrade, apt-get install php5 php5-common php5-cli with no success... Don't know what to try next :(

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• Apache2/mod_fcgid/PHP Process Limits Not Respected

  - by Daniel

  I've recently moved to Apache2 / mod_fcgid / PHP from nginx / php_fpm. This is the second server on which I've made this migration, but it's used much less frequently than the first, which is working like a charm. The problem is in the PHP processes that it's spawning. In looking at the mod_fcgid documentation, it appears that the default for killing idle processes is 300 seconds; I've changed that to 20. At this point, I'd be fine if 300 would work - but it's not happening. It's been running for nearly a day now, and server-status shows 12 active processes: Process name: php5 Pid Active Idle Accesses State 19243 84879 14420 11 Ready Process name: php5 Pid Active Idle Accesses State 20954 82143 149 22 Ready 20947 82149 149 22 Ready 20953 82143 149 13 Ready Process name: php5 Pid Active Idle Accesses State 20589 82765 23644 72 Ready Process name: php5 Pid Active Idle Accesses State 17663 86103 2034 117 Ready Process name: php5 Pid Active Idle Accesses State 19862 83961 1976 91 Ready Process name: php5 Pid Active Idle Accesses State 18495 85825 5164 18 Ready Process name: php5 Pid Active Idle Accesses State 25463 75109 23948 24 Ready Process name: php5 Pid Active Idle Accesses State 2466 60019 60016 2 Ready Process name: php5 Pid Active Idle Accesses State 20729 82541 12592 23 Ready Process name: php5 Pid Active Idle Accesses State 22135 80616 46361 6 Ready PHP applications are not being served at this point - Apache is returning a 503. However, it is still serving the server-status module, and mod_mono/Mono 2.10 applications are still being served. The problem is with the PHP. /etc/apache2/mods-available/fcgid.conf... <IfModule mod_fcgid.c> AddHandler fcgid-script .fcgi FcgidConnectTimeout 10 FcgidMaxRequestsPerProcess 500 FcgidIdleTimeout 20 FcgidFixPathinfo 1 FcgidMaxProcesses 10 </IfModule> (heh - Max Processes isn't being respected either...) Of course, fcgid.conf is smylinked in mods-enabled.

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• Relax Linux - it's just me! (filesystem permissions)

  - by Xeoncross

  One of my favorite things about Linux is also the most annoying - file system permissions. In production machines and web servers I love how everything is so secure and locked down - but on development machines it really slows me down. I'll give one example out of the many that I discover weekly. Like most people, I dual-boot Ubuntu and Windows so I can continue using the Adobe CS4 suite. I often design web themes and other things while I'm still using windows. Later I'll boot into Ubuntu to take the themes and write the backend PHP for them. After mounting the windows C: drive partition I can copy the template files over so I can begin editing them. However, thanks to Linux desire to protect me I find that after coping the files I end up with a totally locked set of files where even I don't have read-write permissions. So after carful consideration about the tremendous risks that the HTML files pose to me - I chmod them so that I and apache can begin using them. Now given, the chmod process isn't that hard - but after you chmod enough files per day you get sick of doing it. I'm constantly creating, fetch, editing, and removing files from my user, git repos, php, or other random processes. This is a personal development machine after all. Everything changes on a day by day basis. So my question is, how can I get linux to relax about what I'm doing with my HTML/JS/PHP/TXT/SQL/etc. files so that I can work faster without constantly stopping to chmod things? I pinky-promise I won't hack into my account with an HTML file. ;)

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• django : Serving static files through nginx

  - by PlanetUnknown

  I'm using apache+mod_wsgi for django. And all css/js/images are served through nginx. For some odd, reason when others/friends/colleagues try accessing the site, jquery/css is not getting loaded for them, hence the page looks jumbled up. My html files use code like this - <link rel="stylesheet" type="text/css" href="http://x.x.x.x:8000/css/custom.css"/> <script type="text/javascript" src="http://1x.x.x.x:8000/js/custom.js"></script> My nginx configuration in sites-available is like this - server { listen 8000; server_name localhost; access_log /var/log/nginx/aa8000.access.log; error_log /var/log/nginx/aa8000.error.log; location / { index index.html index.htm; } location /static/ { autoindex on; root /opt/aa/webroot/; } } There is a directory /opt/aa/webroot/static/ which have corresponding css & js directories. The odd thing is that the pages show fine when I access them. I have cleared my cache/etc, but the page loads fine for me, from various browsers. Also, I don't see any 404 any error in the nginx log files. Actually the logs for nginx are not getting refreshed at all. I restarted the nginx server using root, is that incorrect ? There is a user www-data defined in the nginx configuration file. Any pointers would be great.

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• Cannot connect to FTP sites anymore

  - by Wayne M

  I have the FTP service running on Server 2003, and I am hosting websites through Apache. I have users configured to point to certain directories on the server. I am using FileZilla to remote FTP, but it never seems to connect to the directory. The command window says: Command: USER wayne Response: 331 Password required for wayne Command: PASS: ***** Response: 230 User wayne logged in Status: Connected Status: Retrieving directory isting... Command: PWD Response: 257 "/wayne" is current directory Command: TYPE I Response: 200 Type set to I. Command: PASV And that's it. It doesn't display any directories at all, and the pane says "Not connected to any server". Sometimes it will display the folder, but nothing happens when I click on it to expand it. It was working fine, and I have another FTP server set up the same way that does work. How can I fix this? EDIT: I've tried changing it to Active FTP, and it says: Command: LIST Command: 150 Opening BINARY mode data connection for /bin/ls Response: 425 Can't open data connection. Error: Failed to retrieve directory listing. I also noticed that I'm not able to browse the site in IIS's management console anymore, it just shows a blank screen when I click on one of the names and says There are no items to show in this view, although the name has permissions to view the folder and everything. Could it be because I have the Web Publishing service disabled (as I'm not using IIS to host websites)? That shouldn't cause anything should it?

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• Passenger not booting Rails App

  - by firecall

  I'm at the end of ability, so time to ask for help. My hosting company are moving me to a new server. I've got my own VPS. It's a fresh CentOS 5 install with Plesk 9.5.2 Essentially Passenger just doesnt seem to be booting the Rails app. It's like it doesnt see it's a Rails app to be booted. I've got Rails 3.0 install with Ruby 1.9.2 built from source. I can run Bundle Install and that works. I've currently got Passenger 3 RC1 installed as per here, but have tried v2 as well. My conf/vhost.conf file looks like this: DocumentRoot /var/www/vhosts/foosite.com.au/httpdocs/public/ RackEnv development #Options Indexes I've got a /etc/httpd/conf.d/passenger.conf file which looks like this: LoadModule passenger_module /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.0.pre4/ext/apache2/mod_passenger.so PassengerRoot /usr/local/lib/ruby/gems/1.9.1/gems/passenger-3.0.0.pre4 PassengerRuby /usr/local/bin/ruby PassengerLogLevel 2 and all I get is a 403 forbidden or the directory listing if I enable Indexes. I dont know what else to do! Yikes. There's nothing in the Apache error log that I can see. The new server admin isnt much help as I think he's a bit junior and says he doesnt know about Rails... sigh :/ I'm a programmer and server admin isnt my bag :(

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• Apache2 Virtualhost practice config issue

  - by sisko

  I am practicing virtualhost configuration. In my /var/www directory I have created 3 directories called test1, test2 and test3 each of which has a simple index.php script in it. I:E test1/index.php etc. In /etc/apache2/sites-available/test1 I have the following configuration: <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName test1 DocumentRoot /var/www/test1 <Directory /> Options FollowSymLinks AllowOverride All </Directory> <Directory /var/www/test1/> Options -Indexes FollowSymLinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> All the other sites have a similar virtualHost definition. I have enabled the site(the symlink appears in sites-enabled) and I have restarted apache. However, when I visit localhost/test1, I get a 404 Error. My error log show the following message: [Wed Oct 23 06:22:52 2013] [error] [client 127.0.0.1] File does not exist: /var/www/test1/test1 I don't know why I get the double test1/test1 in the error logs. I'm trying to find the right virtualHost setup which will allow all 3 test websites to be served from their URLs I:E test1/index.php, test2/index.php and test3/index.php. Can anyone help me out, please?

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• Apache2 Segmentation fault with wsgi_module

  - by a coder

  Apache 2.2.3 is running as an existing web server under RHEL 5. Attempting to set up Trac using wsgi_module. RHEL 5 ships with python 2.4, so in order to use the current version of Trac (1.0) I needed to install it with easy_install-2.6. Trac works with the default mod_python, however users strongly encourage not using this module as it is officially dead. Using RHEL's package manager, I downloaded/installed python26-mod_wsgi.so. I backed up the httpd.conf, then made the following additions: LoadModule wsgi_module modules/python26-mod_wsgi.so #...# WSGIScriptAlias /trac /www/virtualhosts/trac/deploy/cgi-bin/trac.wsgi <Directory /www/virtualhosts/trac/deploy/cgi-bin> WSGIApplicationGroup %{GLOBAL} Order deny,allow Allow from all </Directory> Next I moved trac.conf to trac.conf.bak (contains mod_python calls). I tested the configuration using: apachectl configtest Syntax is OK. So I reloaded the server config using: service httpd reload At this time, all virtualhosted sites stopped responding. I restored my backup copy of httpd.conf, reloaded the server config, and the virtualhosted sites are being served again. A quick look at the httpd error_log shows: [Mon Oct 08 10:20:04 2012] [info] mod_wsgi (pid=28282): Initializing Python. [Mon Oct 08 10:20:04 2012] [info] mod_wsgi (pid=28280): Attach interpreter ''. [Mon Oct 08 10:20:04 2012] [debug] proxy_util.c(1817): proxy: grabbed scoreboard slot 0 in child 28283 for worker proxy:reverse [Mon Oct 08 10:20:04 2012] [debug] proxy_util.c(1836): proxy: worker proxy:reverse already initialized [Mon Oct 08 10:20:04 2012] [debug] proxy_util.c(1930): proxy: initialized single connection worker 0 in child 28283 for (*) [Mon Oct 08 10:20:04 2012] [info] mod_wsgi (pid=28283): Initializing Python. [Mon Oct 08 10:20:04 2012] [notice] child pid 28249 exit signal Segmentation fault (11) [Mon Oct 08 10:20:04 2012] [notice] child pid 28250 exit signal Segmentation fault (11) [Mon Oct 08 10:20:04 2012] [notice] child pid 28251 exit signal Segmentation fault (11) There are many similar lines, this is just a snip of the log file. Suggestions on what could be going on to cause the Segmentation faults?

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• What's wrong with this HTTP POST request?

  - by bigboy

  I'm trying to fuzz a server using the Sulley fuzzing framework. I observe the following stream in Wireshark. The error talks about a problem with JSON parsing, however, when I try the same HTTP POST request using Google Chrome's Postman extension, it succeeds. Can anyone please explain what could be wrong about this HTTP POST request? The JSON seems valid. POST /restconf/config HTTP/1.1 Host: 127.0.0.1:8080 Accept: */* Content-Type: application/yang.data+json { "toaster:toaster" : { "toaster:toasterManufacturer" : "Geqq", "toaster:toasterModelNumber" : "asaxc", "toaster:toasterStatus" : "_." }} HTTP/1.1 400 Bad Request Server: Apache-Coyote/1.1 Content-Type: */* Transfer-Encoding: chunked Date: Sat, 07 Jun 2014 05:26:35 GMT Connection: close 152 <?xml version="1.0" encoding="UTF-8" standalone="no"?> <errors xmlns="urn:ietf:params:xml:ns:yang:ietf-restconf"> <error> <error-type>protocol</error-type> <error-tag>malformed-message</error-tag> <error-message>Error parsing input: Root element of Json has to be Object</error-message> </error> </errors> 0

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• Gnome 3 gdm fails to start after preupgrade from fedora 14 to 15

  - by digital illusion

  I'm not able to boot fedora 15 in runlevel 5. After all services start, when the login screen should appear, gdm just show a mouse waiting cursor and keeps restarting itself. From /var/log/gdm/\:0-greeter.log Gtk-Message: Failed to load module "pk-gtk-module" /usr/bin/gnome-session: symbol lookup error: /usr/lib/gtk-3.0/modules/libatk-bridge.so: undefined symbol: atk_plug_get_type /usr/libexec/gnome-setting-daemon: symbol lookup error: /usr/lib/gtk-3.0modules/libatk-bridge.so: undefined symbol: atk_plug_get_type Where should atk_plug_get_type be defined? Edit: Here a better description of the error (system-config-network-gui:2643): Gnome-WARNING **: Accessibility: failed to find module 'libgail-gnome' which is needed to make this application accessible /usr/bin/python: symbol lookup error: /usr/lib/gtk-2.0/modules/libatk-bridge.so: undefined symbol: atk_plug_get_type Why there are still references to gtk2? Did preupgrade fail? Attaching upgrade log... it seems gdm was not added, but it is present in the users and groups list. May 26 11:25:52 sysimage sendmail[1076]: alias database /etc/aliases rebuilt by root May 26 11:25:52 sysimage sendmail[1076]: /etc/aliases: 77 aliases, longest 23 bytes, 795 bytes total May 26 11:46:09 sysimage useradd[1793]: failed adding user 'dbus', data deleted May 26 11:53:37 sysimage systemd-machine-id-setup[2443]: Initializing machine ID from D-Bus machine ID. May 26 11:55:28 sysimage useradd[2835]: failed adding user 'apache', data deleted May 26 11:55:38 sysimage useradd[2842]: failed adding user 'haldaemon', data deleted May 26 11:55:43 sysimage useradd[2848]: failed adding user 'smolt', data deleted May 26 11:57:32 sysimage sendmail[3032]: alias database /etc/aliases rebuilt by root May 26 11:57:32 sysimage sendmail[3032]: /etc/aliases: 77 aliases, longest 23 bytes, 795 bytes total May 26 11:57:46 sysimage groupadd[3066]: group added to /etc/group: name=cgred, GID=482 May 26 11:57:47 sysimage groupadd[3066]: group added to /etc/gshadow: name=cgred May 26 11:57:47 sysimage groupadd[3066]: new group: name=cgred, GID=482 May 26 11:58:42 sysimage useradd[3086]: failed adding user 'ntp', data deleted May 26 12:00:13 sysimage dbus: avc: received policyload notice (seqno=2) May 26 12:15:08 sysimage useradd[4950]: failed adding user 'gdm', data deleted May 26 12:24:39 sysimage dbus: avc: received policyload notice (seqno=3) May 26 12:25:24 sysimage useradd[5522]: failed adding user 'mysql', data deleted May 26 12:25:37 sysimage useradd[5533]: failed adding user 'rpcuser', data deleted May 26 12:26:31 sysimage useradd[5592]: failed adding user 'tcpdump', data deleted Any suggestions before I revert installation to F14?

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• Plesk wildcard subdomain not working

  - by avdgaag

  I'm trying to set up a wildcard subdomain on my VPS. Ultimately I want to end up with this: main site: my.domain.tld subdomain: sub1.my.domain.tld - should end up serving my.domain.tld/sub1 I am using plesk 8.6. I have created a DNS A record pointing at my VPS' IP. I have then restarted the DNS server and waited up to 24 hours. But trying ping sub1.my.domain.tld results in an unknown host error. So I know there's more stuff involved, configuring apache etc. But so far, I cannot even get the subdomain working at all, let alone serve up the right content. I have also tried a CNAME record, to no effect. I have also tried creating a regular subdomain with a fixed name, which also does not work. Pre-configured subdomains DO work, like ftp.my.domain.tld or mail.my.domain.tld. I am clearly missing something here, but my hosting provider charges a small fortune for any support request not involving hardware physically burning down, so I'm hesitant to ask them. Any ideas?

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• SQLRelay MySQL compatibility layer in php-cgi.

  - by sybreon

  I am investigating the use of sqlrelay as a middle-layer between an application that uses MySQL with a PostgreSQL backend. I assume that this is something that it can do to ease backend migration. But for the moment, I am just experimenting with a MySQL application accessing a MySQL backend through the sqlrelay layer. app => sqlrelay lib => mysql client lib => tcp => mysql server I followed the instructions for the MySQL drop-in replacement and it works. I can connect to the backend MySQL server using both sqlrsh and mysql client application. It will work for most MySQL applications by using LD_PRELOAD with the compatibility layer library. The instructions recommend re-compiling php to support it. I would prefer not doing something so drastic. They also recommend setting the LD_PRELOAD for apachectl as a method for the apache/php stack. However, this does not work with lighttpd/php-cgi. I have wrapped php-cgi with a shell script that sets LD_PRELOAD before running the cgi script. LD_PRELOAD=/usr/lib/libmysql50sqlrelay-0.39.4.so.1 /usr/bin/php5-cgi $@ I can see LD_PRELOAD correctly set in phpinfo() but the cgi scripts all fail and are unable to connect to the database. According to the mysql client, the compatibility library should report itself as a 5.0.0 client but the phpinfo module reports itself as the actual 5.0.51a client library used. This means that the compatibility library was not used. Is there someone who has had some success doing something similar?

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• 403 Forbidden When Using AuthzSVNAccessFile

  - by David Osborn

  I've had a nicely functioning svn server running on windows that uses Apache for access. In the original setup every user had access to all repositories, but I recently needed the ability to grant a user only access to one repository. I uncommented the AuthzSVNAccessFile line in my httpd.conf file and pointed it to an accessfile and setup the access file, but I get a 403 Forbidden when I go to mydomain.com/svn . If I recomment out this line then things work again. I also made sure I uncommented the LoadModule authz_svn_module and verified that it was point to the correct file. Below is the Location section of my httpd.conf and my svnaccessfile httpd.conf (location section only) <Location /svn> DAV svn SVNParentPath C:\svn SVNListParentPath on AuthType Basic AuthName "Subversion repositories" AuthUserFile passwd Require valid-user AuthzSVNAccessFile svnaccessfile </Location> (I want a more complex policy in the long run but just did this to test the file out) svnaccessfile [svn:/] * = rw I have also tried just the below for the svnaccessfile. [/] * = rw I also restart the service after each change just to make sure it is taken.

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• Free web-based software for team collaboration/documentation

  - by Jason Antman

  Looking for some advice here, as my search has turned up to be pretty fruitless. My group (9 people - SAs, programmers, and two network guys) is looking for some sort of web tool to... ahem... "facilitate increased collaboration" (we didn't use a buzzword generator, I swear). At the moment, we have an unified ticketing system that's braindead, but is here to stay for political/logistical reasons. We've got 2 wikis ("old" and "new"), neither of which fulfill our needs, and are therefore not used very often. We're looking for a free (as in both cost and open source) web-based tool. Management side: Wants to be able to track project status, who's doing what, whether deadlines are being met, etc. Doesn't want full-fledged "project management" app, just something where we can update "yeah this was done" or "waiting for Bob to configure the widgets". TeamBox (www.teambox.com) was suggested, but it seems almost too gimmicky, and doesn't meet any of the other requirements: Non-management side: - flexible, powerful wiki for all documentation (i.e. includes good tables, easy markup, syntax highlighting, etc.) - good full text search of everything (i.e. type in a hostname and get every instance anyone ever uttered that name) - task lists or ToDo lists, hopefully about to be grouped into a number of "projects" - file uploads - RSS or Atom feeds, email alerts of updates We're open to doing some customizations (adding some features, notification/feeds, searching, SVN integration, etc.) but need something F/OSS that will run under Apache. My conundrum is that most of the choices I've found so far fall into one of these categories: project management/task tracking with poor wiki/documentation/knowledge base support wiki with no task tracking support ticketing system with everything else bolted on (we already have one that we're stuck with) code-centric application (we do little "development", mostly SA work) Any suggestions? Or, lacking that, any comments on which software would be easiest to add the lacking features to (hopefully ending up with something that actually looks good and works well)?

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• Alias using Nginx causing phpMyAdmin login endless loop

  - by Seb Dangerfield

  Recently I've been trying to set up a web server using Nginx (I normally use Apache). However I've ran into a problem trying to set phpMyAdmin up on an alias. The alias correctly takes you too the phpMyAdmin login screen, however when you enter valid credentials and hit go you end up back on the login screen with no errors. Sounded like a cookie or session problem to me... but if I symlink the phpMyAdmin directory and try logging in through the symlinked version it works fine! Both the symlink and the alias one set the same number of cookies and both set seem to set the cookies for the correct domain and path. My Nginx config for the php alias is as follows: location ~ ^/phpmyadmin/(.*\.php)$ { alias /usr/share/phpMyAdmin/$1; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $request_filename; } I'm running Nginx 0.8.53 PHP 5.3.3 MySQL 5.1.47 phpMyAdmin 3.3.9 - self install And php-mcrypt is installed. Has anyone else experienced this behaviour before? Anyone have any ideas about how to fix it?

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• PHP enable sqlite phpinfo states --without-sqlite

  - by Jahmic

  I've seen similar questions but none that address my situation adequately. I'm running Apache and PHP 5.3.6 on a amazon cloud server. phpinfo keeps stating that sqlite is disabled. At least that what it seems from the configure line: './configure' ... '--without-sqlite' In other parts of phpinfo() output: PDO PDO drivers mysql, sqlite PDO Driver for SQLite 3.x enabled SQLite Library 3.6.20 sqlite3 SQLite3 support enabled SQLite3 module version 0.7-dev SQLite Library 3.6.20 Directive Local Value Master Value sqlite3.extension_dir no value no value and at least one the following PHP commands fail: if (!extension_loaded('SQLite') OR !function_exists('sqlite_open')) Yum install states that both sqlite and pdo-lite are already installed. I've tried to enable sqlite by editing my local php.ini by adding: ; Enable sqlite3 extension module extension=sqlite3.so I've checked the main php.ini (/etc/php.ini) and there is nothing specific about disabling it. In fact, there is a sub-conig file loaded in php.d that also specifies this extension as well as another for the pdo-sqlite I'm running of things to look for or try. Any suggestions. How do I find where the PHP configure is stated? Thanks

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• Linux Tuning for High Traffic JBoss Server with LDAP Binds

  - by Levi Stanley

  I'm configuring a high traffic Linux server (RedHat) and running into a limit I haven't been able to track down. I need to be able to handle sustained 300 requests per second throughput using Nginx and JBoss. The point of this server is to run checks on a user's account when that user signs in. Each request goes through Nginx to JBoss (specifically Torquebox with JBoss A7 with a Sinatra app) and then makes an LDAP request to bind that user and retrieve several attributes. It is during the bind that these errors occur. I'm able to reproduce this going directly to JBoss, so that rules out Nginx at least. I get a variety of error messages, though oddly JBoss stopped writing to the log file recently. It used to report errors about creating native threads. Now I just see "java.net.SocketException: Connection reset" and "org.apache.http.conn.HttpHostConnectException: Connection to http://my.awesome.server:8080 refused" as responses in jmeter. To the best of my knowledge, I have plenty of available file handles, processes, sockets, and ports, yet the issue persists. Unfortunately, I have very little experience tuning servers. I've found a couple useful documents - Ipsysctl tutorial 1.0.4 and Linux Tuning - but those documents are a bit over my head (and just entering the the configuration described in Linux Tuning doesn't fix my issue. Here are the configuration changes I've tried (webproxy is the user that runs Nginx and JBoss): /etc/security/limits.conf webproxy soft nofile 65536 webproxy hard nofile 65536 webproxy soft nproc 65536 webproxy hard nproc 65536 root soft nofile 65536 root hard nofile 65536 root soft nproc 65536 root hard nofile 65536 First attempt /etc/sysctl.conf sysctl net.core.somaxconn = 8192 sysctl net.ipv4.ip_local_port_range = 32768 65535 sysctl net.ipv4.tcp_fin_timeout = 15 sysctl net.ipv4.tcp_keepalive_time = 1800 sysctl net.ipv4.tcp_keepalive_intvl = 35 sysctl net.ipv4.tcp_tw_recycle = 1 sysctl net.ipv4.tcp_tw_reuse = 1 Second attempt /etc/sysctl.conf net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.core.netdev_max_backlog = 30000 net.ipv4.tcp_congestion_control=htcp net.ipv4.tcp_mtu_probing=1 Any ideas what might be happening here? Or better yet, are there some good documentation resources designed for beginners?

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• How to configure multiple virtual hosts for multiple users on Linux/Apache2.2

  - by authentictech

  I want to set up a virtual hosting server on Linux/Apache2.2 that allows multiple users to set up multiple website domains as would be appropriate for commercial shared hosting. I have seen examples (from my then perspective as a shared hosting customer) that allow users to store their web files in their user home directory with directories to correspond to the virtual host domain, e.g.: /home/user1/www/example1.com /home/user2/www/example2.com instead of using /var/www Questions: How would you configure this in your Apache configuration files? (Don't worry about DNS) Is this the best way to manage multiple virtual hosts? Are there others? What safety or security issues do you think I should be aware of in doing this? Many thanks, folks. Edit: If you want to only answer question 1, please feel free, as that is the most urgent to me at this moment and I would consider that an answer to the question. I have done it for myself since posting, but I am not confident that it's the best solution and I would like to know how an experienced sysadmin would do it. Thanks.

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• Losing JSESSIONID when using ProxyHTMLURLMap

  - by Matthew Schmitt

  I've setup a reverse proxy between an Apache front-end and multiple Tomcat backends. The below block of code includes the ProxyHTMLURLMap param so that the HTML can be rewritten to remove the Tomcat context path. With this setup in place, after logging into my application, an initial JSESSIONID is set properly, but when navigating to any other page, this JSESSIONID is lost and another one is set by the application. I should mention that the initial login directs to a URL that includes the current context path (i.e. https://app.domain.com/context/home), but when navigating to another page, that context path is not present in the URL (i.e. https://app.domain.com/page2). <Proxy balancer://happcluster> BalancerMember ajp://happ01.h.s.com:8009 route=worker1 loadfactor=10 timeout=15 retry=5 BalancerMember ajp://happ02.h.s.com:8009 route=worker2 loadfactor=10 timeout=15 retry=5 BalancerMember ajp://happ03.h.s.com:8009 route=worker3 loadfactor=5 timeout=15 retry=5 BalancerMember ajp://happ04.h.s.com:8009 route=worker4 loadfactor=5 timeout=15 retry=5 BalancerMember ajp://happ05.h.s.com:8009 route=worker5 loadfactor=5 timeout=15 retry=5 ProxySet lbmethod=bytraffic ProxySet stickysession=JSESSIONID </Proxy> ProxyPass /context balancer://happcluster/context ProxyPass / balancer://happcluster/context/ <Location /context/> # Rewrite HTTP headers and HTML/CSS links for everything else ProxyPassReverse / ProxyPassReverseCookieDomain / app.domain.com ProxyPassReverseCookiePath / /context ProxyHTMLURLMap /context/ / # Be prepared to rewrite the HTML/CSS files as they come back # from Tomcat SetOutputFilter INFLATE;proxy-html;DEFLATE </Location> Has anyone ever run into a similar situation?

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• How to point a subdomain to local server with dynamic IP

  - by jlego

  I see there are many related questions to this one, however the answers given seem to be a little vague for a novice like me. I've got a dedicated LAMP stack running Fedora 16 locally on my home network. Everything works fine internally. I can access the Apache server from other machines on the network using the internal IP in a browser. I'm using the stack for a local file server as well as a development environment for websites. There are a couple of reasons why I would like the development sites hosted on the machine to be available publicly. 1.) I use a CMS that has paid add-ons which allows you to assign the paid license to a domain. I can't develop with paid add-ons on the closed dev server. 2.) I would occasionally like for clients to be able to view the site dev at late stages before it goes live. I have a domain (foo.com, and I want to point a *sub*domain (dev.foo.com) to the local server. I know this is best accomplished with a Static IP, however my IP from my ISP is Dynamic and I don't think there is any way to change that. From what I have read, services like ZoneEdit & DynDNS are supposed to be able to accomplish this, but I have tried both and found it very confusing. Also the server is behind a router and I have also read that you need to set up DDNS(?) in your router, that many routers have presets for these services, and I've found that DynDNS is the only one my router seems to support.

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• only port working with mod_proxy is 8009, trying to use with tomcat and httpd, dont know why

  - by techsjs2012

  I am trying to use mod_proxy with httpd and tomcat. If I leave tomcat ajp to run on 8009 in the server.xml of tomcat and in the httpd.conf of apache httpd everything works great but once I change it to anything else and restart them both it does not work.. I trieded 8109,8209 and 8019.. only thing that works is 8009? Below is my setup that works. <Proxy balancer://testcluster stickysession=JSESSIONID> BalancerMember ajp://127.0.0.1:8009 min=10 max=100 route=node2 loadfactor=1 </Proxy> ProxyPass /examples balancer://testcluster/examples <Location /balancer-manager> SetHandler balancer-manager AuthType Basic AuthName "Balancer Manager" AuthUserFile "/etc/httpd/conf/.htpasswd" Require valid-user </Location> if I change the port to anything in here and the server.xml of tomcat it does not work but I can telnet the port so I know its up? below are the other libs settings I have LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule dav_module modules/mod_dav.so LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule info_module modules/mod_info.so LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule substitute_module modules/mod_substitute.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so #LoadModule proxy_ftp_module modules/mod_proxy_ftp.so #LoadModule proxy_http_module modules/mod_proxy_http.so #LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule version_module modules/mod_version.so

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• How do I import large sql file to local LAMP (xampp) environment

  - by mraslton

  I have used Linux to import a large mysql dump file (into a new database), but am new to how the process works in a local LAMP environment using xampp, as xampp does not support SSH. I've dowloaded the large_dump_file.sql from the Linux server to my local system. I'm using Windows XP and have used xampp to setup LAMP. I am able to access the local_database via phpMyAdmin, but the dump file is too large to import using that app. I'm trying to import the file via the command prompt, but so far with no success. At the prompt: cd .. cd .. cd xampp cd mysql cd bin I've found that mysqlimport is used to import .csv and .txt files, and mysql is used to import .sql files, but can't find documentation as to whether or not to use the -u -p options so I've tried many variations of the command with no luck. What would be the proper command? I've modified the hosts, virtual-hosts conf, and apache config files. Do I need to change any other config files on my local system? Thanks.

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• Massive SQL issue shutting down our site.

  - by Pselus

  Our website has started timing out like crazy today. All of our clients are finding it unusable. The only error we can seem to trace down as a potential problem is this: SQLAllocHandle on SQL_HANDLE_DBC failed Error ASP Description Error Category Microsoft OLE DB Provider for ODBC Drivers I have no idea what it means or how to go about fixing it. Anyone ever encountered this error before? Currently, you can log in to our site, but then once you go to do anything else, you find yourself logged out or nothing happens. We have a lot of Ajax going on so the "nothing happens" probably has to do with the Ajax pages not loading properly due to logouts and so nothing displays to the user. Like I said, I'm at a loss. Anyone have any advice on this error? EDIT I realize that this isn't necessarily a programming question, but we are a small startup company that just yesterday started talking about how we need to get a backup server running. Apparently we talked about it too late. We don't have a DBA, just 2 mid level programmers trying their hardest to keep our clients happy. So please, if you have any assistance give it but please don't close my question right now. EDIT 2 Turns out we had something on our server running called "ServerMask" that makes our IIS server look like Apache to the outside world. Shutting it down fixed our issue. Still no idea why it was messing up but it was the problem apparently. Thanks to everyone who tried to help.

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• ubuntu - Best way of repartitioning a (running) production server

  - by egarcia

  I've got an (externally hosted) production server running Ubuntu LTS. It serves webpages (rails) and has an svn repository accesible through Apache, and a PostgreSQL db. I've got ssh access to the server and root privileges. Most of the "interesting" stuff is located in /var/ : svn repositories are inside /var/svn, web pages under /var/www, etc. Yesterday I was curious about how much disk space had it left, so I did the following: $ df -h Filesystem Size Used Avail Use% Mounted on /dev/md1 950M 402M 500M 45% / varrun 990M 64K 990M 1% /var/run varlock 990M 0 990M 0% /var/lock udev 990M 76K 989M 1% /dev devshm 990M 0 990M 0% /dev/shm /dev/md5 4.7G 668M 4.1G 15% /usr /dev/md6 4.7G 1.4G 3.4G 29% /var /dev/md7 221G 28M 221G 1% /home none 990M 4.0K 990M 1% /tmp My 'var' partition, which holds most of the interesting part, is only 4.7G big. The /home/ partition, on the other hand, is 221G, but it is mostly unused. I should have checked the disk layout before starting installing stuff. Ideally I would need /var/ and /home/ to be "switched" - /home/ should be the one with 4.7G, and /var/ the one with 221G. Is there a way to solve this without having to reinstall the whole thing?

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