PUBLIC MARKS with tags linux & applications

Good Knol article on Linux migration (from Windows) with links to lists of Linux application equivalents for Windows applications

Find alternative software applications for common desktop programs on Windows, Mac, and Linux.

This tutorial explains how you can set up MySQL master-master replication on four MySQL nodes (running on Debian Etch). The difference to a two node master-master replication (which is explained here) is that if you have more than two nodes, the replication goes in a circle, i.e., with four nodes, the replication goes from node1 to node2, from node2 to node3, from node3 to node4, and from node4 to node1. Since version 5, MySQL comes with built-in support for master-master replication, solving the problem that can happen with self-generated keys. In former MySQL versions, the problem with master-master replication was that conflicts arose immediately if node A and node B both inserted an auto-incrementing key on the same table. The advantages of master-master replication over the traditional master-slave replication are that you don't have to modify your applications to make write accesses only to the master, and that it is easier to provide high-availability because if the master fails, you still have the other master.

This article shows how to install and configure ModSecurity (version 2) for use with Apache2 on a Debian Etch system. ModSecurity is an Apache module that provides intrusion detection and prevention for web applications. It aims at shielding web applications from known and unknown attacks, such as SQL injection attacks, cross-site scripting, path traversal attacks, etc. I want to say first that this is not the only way of setting up such a system. There are many ways of achieving this goal but this is the way I take. I do not issue any guarantee that this will work for you!

Pour certains utilisateurs, il peut y avoir un intérêt à pouvoir utiliser ses applications Linux préférées sous Windows, par exemple dans un environnement professionnel où l'on n'est pas nécessairement autorisé à installer Linux sur une partition du PC que l'on utilise, mais aussi à la maison si l'on utilise beaucoup Windows et que l'on veut éviter de tout le temps redémarrer pour utiliser Linux. Le "Virtual Desktop" (bêta) d'Ulteo, disponible en libre téléchargement depuis hier, devrait donc pouvoir intéresser ceux qui souhaitent pouvoir utiliser leurs applications Linux directement sous Windows. Il propose par défaut les applications Open Source à succès comme Firefox, Thunderbird, OpenOffice.org... mais on peut y ajouter beaucoup d'autres logiciels, et même des jeux. Côté technique, le Virtual Desktop n'utilise pas de logiciel de virtualisation comme Vmware, QEmu ou KVM, mais un patch kernel "coLinux" qui transforme les appels systèmes Linux en appels systèmes Windows, ce qui donnerait des performances proches d'une installation native sur un PC.

Prism, anciennement appelé webrunner, est un petit navigateur mono-site dépourvu de toutes interfaces (pas de menus, pas de boutons, ...) le rendant ainsi ultra-rapide. Cet article explique comment l'installer et l'utiliser sur un système d'exploitation Linux. Le but principal de ce logiciel est donc de permettre à l'utilisateur d'accéder facilement et rapidement à des applications en ligne, qu'il consulte très régulièrement (webmail, lecteur de flux RSS ...). On se retrouve ainsi avec un programme qui réunit le meilleur des deux mondes : les applications desktop locales et les applications web en ligne.

Since version 5, MySQL comes with built-in support for master-master replication, solving the problem that can happen with self-generated keys. In former MySQL versions, the problem with master-master replication was that conflicts arose immediately if node A and node B both inserted an auto-incrementing key on the same table. The advantages of master-master replication over the traditional master-slave replication are that you don't have to modify your applications to make write accesses only to the master, and that it is easier to provide high-availability because if the master fails, you still have the other master.

VAFEO est une suite des distributions Linux qui propose des applications open source parmi les plus réputées. Les distributions VAFEO sont composées d'une base Debian Etch et d'un ensemble d'applications cohérentes. VAFEO offre des images systèmes prêtes à utiliser dans de différents environnements virtuels : KVM, Parallels, VirtualBox, Virtual PC, VMWare, ou Xen. VAFEO existe aussi sous forme de Live CD/DVD qui permet aux utilisateurs d'effectuer une évaluation rapide de la suite. Dans le cas où le système répond aux attentes, l'outil vafeo2hd pourra être activé afin d'installer une distribution sur disque dur pour un usage permanent.

SeamlessRDP permet de faire tourner des applications individuelles plutôt que de toutes les avoir dans la même fenêtre RemoteDesktop.

Applications using the LAMP (Linux®, Apache, MySQL, PHP/Perl) architecture are constantly being developed and deployed. But often the server administrator has little control over the application itself because it's written by someone else. This series of three articles discusses many of the server configuration items that can make or break an application's performance. This second article focuses on steps you can take to optimize Apache and PHP. Linux, Apache, MySQL, and PHP (or Perl) form the basis of the LAMP architecture for Web applications. Many open source packages based on LAMP components are available to solve a variety of problems. As the load on an application increases, the bottlenecks in the underlying infrastructure become more apparent in the form of slow response to user requests. The previous article showed you how to tune the Linux system and covered the basics of LAMP and performance measurement. This article focuses on the Web server components, Apache and PHP.

DSPAM is a scalable and open-source content-based spam filter designed for multi-user enterprise systems. On a properly configured system, many users experience results between 99.5% - 99.95%, or one error for every 200 to 2000 messages. DSPAM supports many different MTAs and can also be deployed as a stand-alone SMTP appliance. For developers, the DSPAM core engine (libdspam) can be easily incorporated directly into applications for drop-in filtering (GPL applies; commercial licenses are also available).

What if there was a way to publish an application on the Linux desktop via a remote connection protocol like Remote Desktop Protocol? I know that this sounds an awful lot like Citrix and, in fact, what I am proposing is similar. However, Citrix is expensive and seems to be overkill for just a few network/security administrators' laptops or desktops. This recipe consists of a laptop/desktop running Linux in a GUI with VMware Server, a Windows XP VM and a product called 2X Application Server for Windows Terminal Services. Once you are done, you will have a Windows XP VM running as a service and loaded with any applications that you may need.

A userguide for mysql v5.0.

Welcome to the Wiki of the aMule Project

A great reference for all things amaroK, the wonderful linux music collection and player player application.

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