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PUBLIC MARKS from lecyborg with tag linux

March 2008

NagVis

by 2 others
NagVis is a visualization addon for the well known network managment system Nagios. NagVis can be used to visualize Nagios Data, e.g. to display IT processes like a mail system or a network infrastructure. Key features are: * Display of single Hosts and Services * Visualize a complete Host- oder Servicegroup with one icon * Display the state of a Host dependent on the state of its services (“recognize services”) * Display only the real problems (“only_hard_states”) * Define Sub-Map icons wich represent a complete NagVis Map of Hosts/Services/Groups in one icon (drill down) * Visualization/Documentation of complete IT Processes and Infrastructures using self drawn graphics

Jabber Openfire Server

by 2 others
Openfire (formerly Wildfire) is a real time collaboration (RTC) server dual-licensed under the Open Source GPL and commercially. It uses the only widely adopted open protocol for instant messaging, XMPP (also called Jabber). Openfire is incredibly easy to setup and administer, but offers rock-solid security and performance.

Authentification Ldap

Ce bout de code vient juste après l’article sur l’installation de ejabberd, test de l’authentification ldap. Ca fonctionne très bien ! Il suffit de modifier le fichier de conf /etc/ejabberd/ejabberd.cfg

February 2008

Using Nagios to Monitor Networks

Nagios is a powerful, modular network monitoring system that can be used to monitor many network services like smtp, http and dns on remote hosts. It also has support for snmp to allow you to check things like processor loads on routers and servers. I couldn't begin to cover all of the things that nagios can do in this article, so I'll just cover the basics to get you up and running.

eeeXubuntu [EeeUser Eee PC Wiki]

by 1 other
eeeXubuntu is a custom version of the Xubuntu 7.10 Live CD with fully-integrated hardware support, including native wireless drivers, functioning Ethernet support, tweaks for low-resolution desktop environments, and other miscellaneous fixes. Wherever possible, these changes are incorporated using custom .deb packages rather than spewing assorted files all over post-install. (Screenshot) The goal of this project is to maintain a easy-to-install Xubuntu Live CD image for the eeePC, allowing for a reliable base Xubuntu install. One strong advantage of development for the eeePC is a common hardware platform shared by all users. (Those who are missing a miniPCI slot may, of course, disagree.)

(eee)(x)Ubuntu sur eeePC !

Retour d'expérience sur l'installation d'ubuntu sur eeePC

Munin, une alternative simple à Cacti?

by 1 other
Cela fait près d’un an et demi que j’utilise le logiciel Cacti pour monitorer l’activité réseau. Aussi bien dans le cadre de mon activité professionnelle que pour mon usage personnel. Mais j’ai récement découvert une alternative sérieuse : Munin. Celui-ci présente de nombreux avantages par rapport à Cacti et mérite d’être plus connue.

Munin

by 6 others
Munin the monitoring tool surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort. Using Munin you can easily monitor the performance of your computers, networks, SANs, applications, weather measurements and whatever comes to mind. It makes it easy to determine "what's different today" when a performance problem crops up. It makes it easy to see how you're doing capacity-wise on any resources.

Network Weathermap | See Everything

by 1 other
Script PHP établissant une carte du réseau avec les informations de traffic

Postfix Cyrus IMAP SSL LDAP

La série d'articles de cette rubrique est entièrement dédiée à la mise en oeuvre d'un serveur de mail basé sur Postfix et Cyrus-Imap. Ces deux éléments sont tout simplement ce qui ce fait de mieux actuellement dans leur domaine respectif: * Postfix : protocole smpt ou smtps pour le mode sécurisé * Cyrus imap : protocole POP3 ou POP3S (mode sécurisé) ou IMAP ou IMAPS (mode sécurisé).

WebDav Autoversioning

A while back I stumbled upon a lesser known feature of SVN and WebDav, but didn’t have the time to blog about it until now. WebDAV and SVN is an exceedingly useful tool as we all know, and pretty damn easy to setup, see here. But what if you could have everything entered into the WebDav repository automatically versioned into a repository. Well you can! And the good news is, it’s really really easy.

January 2008

Integrating amavisd-new Into Postfix For Spam- And Virus-Scanning

by 1 other
This article shows how to integrate amavisd-new into a Postfix mail server for spam- and virus-scanning. amavisd-new is a high-performance interface between MTAs such as Postfix and content checkers: virus scanners, and/or SpamAssassin. We will use ClamAV for virus scanning and SpamAssassin for spam scanning in this tutorial. 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!

ctail project page

ctail is like running tail -f, but can be used on multiple files. It uses the Curses library to split the screen into as many windows as there are files to watch. The size of each file's window can optionally be specified on the command line. Regular expressions can be used to display only lines matching (or not matching) arbitrary criteria. Each file's window has a status bar, showing the file name, date and time of last change and current file size.

Postfix Virtual Domain Hosting Howto

This document requires Postfix version 2.0 or later. This document gives an overview of how Postfix can be used for hosting multiple Internet domains, both for final delivery on the machine itself and for the purpose of forwarding to destinations elsewhere. The text not only describes delivery mechanisms that are built into Postfix, but also gives pointers for using non-Postfix mail delivery software.

Tango icon theme generator

The third major incarnation of the Tango Generator is a python application allowing the user to collate icons from all over the internet, and merge them into a single personalised icon theme. A single theme will typically contain more than 10,000 icons. Thanks to the Tango Icon Theme Guidlines, icons from over 20 themes can be mixed at will while remaining assured of a consistent overall appearance. The Generator is capable of themeing the Gnome and XFCE desktop environments, aswell as a wide range of common GTK applications - including Azureus, Gftp and Inkscape.

December 2007

Sauvegarder ses données avec rsync

C’est simple copie est assez simple à mettre en place, et peut s’avérer très pratique en cas de crash du disque dur. La sauvegarde peut paraitre un peut basique, mais qui à besoin (et qui à assez d’espace disque) pour avoir une sauvegarde jours par jours avec les modifications ?

Convertir système debian en Raid1

Our intention is not to build a fail-safe system nor a HA-Linux. We are just using RAID-1 mirrored disks to make sure that the system can be restored easily if 1 disk crashes. The following has been tested only twice (hey, we've got other things to do). It did work for us, it might work for you. It might also make your rats go berserk or just blow your mind.

PHP Login script

by 2 others
If you're looking for a serious script to manage your users then you're at the right place. Built with security in mind and packed with dozens of features, our PHP login script is the right solution for every webmaster looking to take his website to the next level. Trust us, we've stayed (and we still do for early versions) open-source long enough to learn what people really need.

Making Linux a First Class Citizen in Active Directory

# Joins Linux systems to Active Directory domains in a single step from the command line or from a GUI # Authenticates users with a single user name and password on both Windows and Linux systems # Enforces the same password policies for Linux users as for Windows users # Support for multiple forests with one-way and two-way cross forest trusts # Single sign-on for SSH and Putty # Single UID automatically assigned # Credential caching in the event of temporary loss of connectivity to the Active Directory Domain Controller # No Active Directory schema changes involved # Most recent Linux distributions supported

Automatic_Bridge_Ubuntu - VirtualBox

This is a quick tutorial on how to setup your Linux environment and VirtualBox, so that it can automatically create network interfaces and put them in bridge when the VM is launched.

Installation d'un lecteur Samsung YP-U3 sur un système GNU-Linux

Installation d'un lecteur Samsung YP-U3 sur un système GNU-Linux (Ubuntu Gutsy 7.10)

November 2007

Data Encryption

Gestion du cryptage des données avec Bacula.

SSH Port Forwarding

SSH also has a wonderful feature called SSH Port Forwarding, sometimes called SSH Tunneling, which allows you to establish a secure SSH session and then tunnel arbitrary TCP connections through it. Tunnels can be created at any time, with almost no effort and no programming, which makes them very appealing. In this article we look at SSH Port Forwarding in detail, as it is a very useful but often misunderstood technology. SSH Port Forwarding can be used for secure communications in a myriad of different ways. Let's start with an example.

[A] m p a c h e : Pour l'Amour de la Musique depuis le 5 Mai 2001

by 3 others (via)
Ampache is a Web-based Audio file manager. It is implemented with MySQL, and PHP. It allows you to view, edit, and play your audio files via the web. It has support for playlists, artist and album views, album art, random play, playback via Http/On the Fly Transcoding and Downsampling, Vote based playback, Mpd and Icecast, Integrated Flash Player, as well as per user themes and song play tracking. You can also Link multiple Ampache servers togeather using XML-RPC. Ampache supports GETTEXT translations and has a full translation of many languages

SSH-Agent Tutorial

by 1 other
Security is best when it is handy. ssh-agent is pretty darn handy. Ssh-agent can authenticate you to a remote machine via keypairs, rather than the traditional hand-typed username/password combination, with no loss of security.

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