PUBLIC MARKS from camel with tags server & linux

This site will hope to provide both content and community for those who are interested in Ubuntu on the server. Ubuntu, more often than not, is viewed as a newby distribution for desktop use. Even though Ubuntu makes a great desktop, it also makes a great robust server as well and this site hopes to focus on that. The framework of the site is still being developed so bare with me here a bit, but enjoy!

SystemImager lets you create images of your Linux installations. To do so, you need an image server (should have enough disk space to store your images) and a so-called golden client (i.e., the system of which you want to make an image). This means that you have to install some software on your image server and on your golden client in order to run SystemImager. This tutorial shows how to install a SystemImager server and a SystemImager client, both using Ubuntu 8.10, and how to create/update/restore/delete images.

his document is derived from Christoph Haas’ tutorial “Howto: ISP-style Email Server with Debian-Etch and Postfix” (http://workaround.org) and Falko Timme’s tutorial “Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.04 LTS)” (http://www.howtoforge.com). The associated Mailfix Drupal module must be installed as part of this tutorial. It will guide you through the necessary steps to configure a Drupal driven Mail server. Provided features: * Drupal managed email accounts * Support for virtual domains * Automatic forwarding * Postfix quota support * Silent BCC monitoring * Other features: anti-spam, anti-virus

Many times, you want to execute a command not only on one server, but also on several servers. For example, find out * Version of kernel * Version of Apache web server * Update static html or images files on all web servers via rsync * Find out user information, server information, memory usage etc * Security/patch checking tentakel I have already covered how to execute commands on multiple Linux or UNIX servers via shell script. The disadvantage of script is commands do not run in parallel on all servers. However, several tools exist to automate this procedure in parallel. With the help of tool called tentakel, you run distributed command execution. It is a program for executing the same command on many hosts in parallel using ssh (it supports other methods too). Main advantage is you can create several sets of servers according requirements. For example webserver group, mail server group, home servers group etc. The command is executed in parallel on all servers in this group (time saving). By default, every result is printed to stdout (screen). The output format can be defined for each group.

This guide explains how you can run virtual machines with Sun xVM VirtualBox 2.0 on a headless Ubuntu 8.04 server. Normally you use the VirtualBox GUI to manage your virtual machines, but a server does not have a desktop environment. Fortunately, VirtualBox comes with a tool called VBoxHeadless that allows you to connect to the virtual machines over a remote desktop connection, so there's no need for the VirtualBox GUI.

This howto explains installing Zivios Master Service version 0.5.0. Zivios is an n-tiered PHP-5 application, providing identity management, single sign-on, user, group and computer provisioning, as well as remote management of services. It uses MySQL and OpenLDAP as it's data store, with OpenLdap being the primary back end for identity management and application integration and MySQL being used for panel specific data.

OpenThinClient is a Free Open Source ThinClient Solution consisting of a Linux based operating system along with a comprehensive Java based management GUI and server component. It is intended for environments where a medium to large number of Thin Clients must be supported and managed efficiently. Offering flexibility unheard of in the world of proprietary Thin Client Solutions, openThinClient empowers developers and integrators to create advanced Thin Client solutions... for free. openThinClient is released as an open source software under the GNU General Public License (GPL) v2external link, and it is available for download free of charge. openThinClient was created by the levigo groupexternal link based on their thin client expertise reaching back till 1999.

This article explains how you can install and configure apache2-mpm-peruser on a Debian Etch server. apache2-mpm-peruser is an MPM (Multi-Processing Module) for the Apache 2 web server, very similar to apache2-mpm-itk, but faster (almost as fast as apache2-mpm-prefork). mpm-peruser allows you to run each of your vhosts under a separate UID and GID - in short, the scripts and configuration files for one vhost no longer have to be readable for all the other vhosts. It is based on metuxmpm, a working implementation of the perchild MPM. The result is a sane and secure web server environment for your users, without kludges like PHP's safe_mode.

XBMC [1] signifiait anciennement XBox Media Center mais depuis la sortie de ‘Atlantis’ [2], nom de code donné à sa dernière mouture actuellement en Beta, cela n'est plus vrai. En effet, XBMC devient multi-plateforme et son acronyme devient récursif (XBMC Media Center). XBMC est pour ceux qui ne l'aurait pas encore remarqué un centre multimédia initialement conçu pour ne fonctionner que sur la console de jeux de Microsoft : la Xbox de première génération. Cependant, les utilisateurs souhaitaient pouvoir utiliser leur fabuleux centre multimédia sur d'autres plateformes et donc un gros travail de portage a été lancé. Ce travail abouti maintenant avec une première version Beta disponible d'hors et déjà sur les différentes plateformes concernées [3]. Vous trouverez donc une version "live" à mettre sur CD-ROM ou clé USB, une version Window XP/Vista, une version MacOS X et bien sûre une version pour GNU/Linux. XBMC est toujours disponible pour sa plateforme de prédilection et ne compte pas l'abandonner mais pour des raisons de légalité, il est impossible de fournir le binaire créé à l'aide du kit de développement de la Xbox délivré par Microsoft. Il faut alors acquérir ce kit (de manière plus ou moins légale) et compiler soit même le binaire pour la version Xbox. Au niveau des fonctionnalités, on peut déjà dire que XBMC se base sur de nombreux projets libres pour accomplir ses tâches. Par exemple, MPlayer pour la lecture de nombreux formats audios et vidéos, FFmpeg pour la lecture des DVD, Filezilla pour l'accès FTP, Samba pour le partage de fichiers, etc... Un listing complet des fonctionnalités est disponible en [4]. Vous n'avez donc plus aucune raison pour tester et profiter de ce fabuleux logiciels ;) [1] http://xbmc.org/ [2] http://xbmc.org/blog/2008/09/18/xbmc-atlantis-beta-1-release(...) [3] http://xbmc.org/download/ [4] http://xbmc.org/about/features/

This tutorial provides step-by-step instructions on how to install Xen on an Ubuntu Hardy Heron (Ubuntu 8.04) server system (i386). You can find all the software used here in the Ubuntu repositories, so no external files (apart from a fixed Ubuntu Xen kernel to enable networking for the virtual machines) or compilation are needed.

This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another "Single Point Of Failure", we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.

First and foremost, be prepared to have some patience when trying to get a USB cam to work under Linux. In trying to get mine to work, I searched many a newsgroup thread only to find there was only one message in the thread, the original question stating the problem. i.e. no one had an answer for the person who posted the question so you may be on your own trying to get your cam to work. Often times the same camera model will use different drivers for different sub-models (ex: not all QuickCam Express sub-models use the same driver). However, my trials and tribulations were a good learning experience and I'll share what I learned here to hopefully make your setup easier.

Openfiler is a powerful, intuitive browser-based network storage software distribution. Openfiler ScreenshotsOpenfiler delivers file-based Network Attached Storage and block-based Storage Area Networking in a single framework. Openfiler is built on the rPath Linux metadistribution and is distributed as a stand-alone Linux distribution. The entire software stack interfaces with third-party software that is all open source. File-based networking protocols supported by Openfiler include: NFS, SMB/CIFS, HTTP/WebDAV and FTP. Network directories supported by Openfiler include NIS, LDAP (with support for SMB/CIFS encrypted passwords), Active Directory (in native and mixed modes) and Hesiod. Authentication protocols include Kerberos 5. Openfiler includes support for volume-based partitioning, iSCSI (target and initiator), scheduled snapshots, resource quota, and a single unified interface for share management which makes allocating shares for various network file-system protocols a breeze.

This guide explains how to set up mod_geoip with Apache2 on a Debian Etch system. mod_geoip looks up the IP address of the client end user. This allows you to redirect or block users based on their country. You can also use this technology for your OpenX (formerly known as OpenAds or phpAdsNew) ad server to allow geo targeting.

djbdns is a very secure suite of DNS tools that consists out of multiple parts: dnscache, a DNS cache that can be used in /etc/resolv.conf instead of your ISP's name servers and that tries to sort out wrong (malicious) DNS answers; axfrdns, a service that runs on the master DNS server and to which the slaves connect for zone transfers; and tinydns, the actual DNS server, a very secure replacement for BIND.

You are not a Linux expert, Artica for Postfix allows you to install a full solution by one single command line: * Postfix: Main MTA * Kaspersky Anti-spam: powerfull Anti-spam provided by Kaspersky Inc * Kaspersky Anti-Virus * Bogofilter : Bayesian anti-spam * OpenLDAP: Database for main configuration and user management * emailrelay: little SMTP server (used as a content-filter) * SQLite library: zeroconf sql database engine with high perfomances. * Cyrus-imap: powerfull MDA System * Procmail: MDA Filter * Fetchmail: Email retreival * DnsMasq:DNS forwarder and DHCP server * Mailman:Mailing List manager * Sieve: End-user mail filters * Yorel script: Statistics of yorel * QueueGraph: Statistics for postfix * MailGraph: Statistics for postfix * AWSTats and geoip plugin: Statistics set for postfix * renattach: attachments filter

Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on a Debian Etch server with PHP5 support (through FastCGI) and MySQL support.

Lighttpd, sometimes pronounced "Lighty", is a lightweight HTTP server that can help alleviate Apache's load by serving static content. Since Lighttpd uses less resources per request than Apache, it generally serves most static content faster than Apache. This tutorial shows how to install Lighttpd behind Apache via Apache´s proxy module.

The WiKID Strong Authentication Server is a dual-source two-factor authentication system. PINs are encrypted on a software token and sent to the WiKID server. If the PIN is correct, the encryption valid and the account active, a one-time password is generated, encrypted and returned to the user's token where it is decrypted and presented for use with a network-based services. While there are a number of tutorials on how to combine WiKID's two-factor system a variety of systems (such as SSH, OpenVPN, Apache and SSL-VPNs), this is the first to address how to install the WiKID Server. We assume that you have already configured an RPM-based server. In general, it is best to have WiKID be the only service running on the server. This configuration will minimize potential security risks.

djbdns is a very secure suite of DNS tools that consists out of multiple parts: dnscache, a DNS cache that can be used in /etc/resolv.conf instead of your ISP's name servers and that tries to sort out wrong (malicious) DNS answers; axfrdns, a service that runs on the master DNS server and to which the slaves connect for zone transfers; and tinydns, the actual DNS server, a very secure replacement for BIND.

This short guide describes how to install Windows XP or Windows 2003 Server on Xen. It provides an overview of the Debian Linux Etch installation, and detailed steps for installing and configuring Xen and starting the Windows XP or Windows 2003 Server installation.