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This guide explains the process of setting up a FreeBSD system that will act as a wireless router (as well as a wired router) that takes advantage of the ported version of OpenBSD's PF packet filter.

This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV so that emails will be scanned for spam and viruses.

This tutorial describes how to install the 32 bit Linux Testdrive of SAP Netweaver 2004 on SUSE Linux 9.3 and enable BW functionality. It goes step by step through the distribution installation, environment setup and tasks that need to be done in order to set everything up.

This tutorial shows how you can display weather forecasts, system information like CPU and memory usage, news feeds, music player controls, etc. on a GNOME desktop with gDesklets. gDesklets is a programm that can place small desktop widgets on top of the user's desktop.

ntop is a network traffic tools that shows network usage in a real time. One of the good things about this tool is that you can use a web browser to manage and navigate through ntop traffic information to better understand network status.

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.

This tutorial provides step-by-step instructions on how to install VMware Server on a Fedora Core 6 desktop system. With VMware Server you can create and run guest operating systems (virtual machines) such as Linux, Windows, FreeBSD, etc. under a host operating system. This has the benefit that you can run multiple operating systems on the same hardware which saves a lot of money, and you can move virtual machines from one VMware Server to the next one (or to a system that has the VMware Player which is also free).

This guide is going to describe the steps to get the mod_dav_svn module to work on an Apache web server. First I will assume that we do not have Apache and Subversion installed on our FreeBSD box, in a second part I will explain how to add the module using our current installation.

This tutorial shows how to install the Aptana IDE on an Ubuntu Edgy Eft system. The Aptana IDE is a free, open-source, cross-platform, JavaScript-focused development environment for building Ajax applications. It features code assist on JavaScript, HTML, and CSS languages, FTP/SFTP support and a JavaScript debugger to troubleshoot your code.

This short guide shows some important commands for your daily work on the Linux command line.

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig. MyDNS is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. The advantage is that MyDNS simply reads the records from the database, and it does not have to be restarted/reloaded when DNS records change or zones are created/edited/deleted. A secondary nameserver can be easily set up by installing a second instance of MyDNS that accesses the same database or, to be more redundant, uses the MySQL master / slave replication features to replicate the data to the secondary nameserver.

Normally, when a program runs under Linux, it inherits the permissions of the user who is running it, thus if I run a program under my account, the program runs with the same permissions that I would have if that program were me. Thus, if I cannot open a certain file, the program I am running also cannot open the file in question. If I set the SUID or SGID bit for a file, this causes any persons or processes that run the file to have access to system resources as though they are the owner of the file.

This guide shows how to install the Zimbra Collaboration Suite (ZCS) on Ubuntu 6.10 (Edgy Eft) and 6.06 (Dapper Drake) server systems. Zimbra is a full-featured, open source collaboration suite - email, group calendaring, contacts, and web document management and authoring. It has a feature-rich AJAX web interface and is compatible with clients such as Microsoft Outlook, Apple Mail, and Novell Evolution so that mail, contacts, and calendar items can be synchronised from these to the ZCS server. It can also be synchronized to many mobile devices. ZCS makes use of many existing open source projects such as Postfix, MySQL, and OpenLDAP.

Automated Image & Restore (AIR) is an open source application that provides a GUI front end to the dd/dcfldd (Dataset Definition (dd)) command. AIR is designed to easily create forensic disk/partition images. It supports MD5/SHAx hashes, SCSI tape drives, imaging over a TCP/IP network, splitting images, and detailed session logging.

With the release of Microsoft's new Windows operating system (Vista), more and more people are looking for alternatives to Windows for various reasons. This tutorial is the third in a series of articles where I will show people who are willing to switch to Linux how they can set up a Linux desktop (Ubuntu 6.10 Edgy Eft in this article) that fully replaces their Windows desktop, i.e. that has all software that people need to do the things they do on their Windows desktops. The advantages are clear: you get a secure system without DRM restrictions that runs also on older hardware, and the best thing is: all software comes free of charge.

This is a detailed description about how to set up a vtiger CRM 5.02 on an Ubuntu 6.06 LTS (Dapper Drake) based server. vtiger is an Open Source Customer Relationship Management solution built over LAMP stack and other third-party open source packages.

Puppet is a configuration automation tool that allows you to centralize management of the various *nix flavors running on your network. Puppet supports central management of the important aspects of your systems, such as: files, packages, users, services, cron, mounts, etc. This guide shows how to install Puppet (server & client) on Ubuntu.

This article shows how you can make PHP interact with Adobe Flex. Adobe Flex is a technology to support the development and deployment of rich internet applications based on their proprietary Macromedia Flash platform.

This tutorial shows how to set up a fileserver for small and medium enterprises with SME Server 7.1. SME Server is an open-source Linux server distribution (released under the GPL) based on CentOS that can turn a computer into a gateway, firewall, fileserver, printserver, mailserver (including webmail), etc. In this article we will focus on the fileserver aspect of SME Server.

With the release of Microsoft's new Windows operating system (Vista), more and more people are looking for alternatives to Windows for various reasons. This tutorial is the second in a series of articles where I will show people who are willing to switch to Linux how they can set up a Linux desktop (Mandriva Free 2007 in this article) that fully replaces their Windows desktop, i.e. that has all software that people need to do the things they do on their Windows desktops. The advantages are clear: you get a secure system without DRM restrictions, and the best thing is: all software comes free of charge.