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This tutorial is based on a LAN setup, but it should also be applicable for an Internet seedbox (e.g. on a vps or rootds), but some additional steps may need to be performed (firewall, securing rpc-mount, generally hardening of the server). The best lightweight software combination for a seedbox is lighttpd with rtorrent/libtorrent and a nifty web interface. So we use avalanche-rt, an actively developed project which looks very promising.

Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on a Debian Squeeze server with PHP5 support (through FastCGI) and MySQL support.

This article explains how to install Zimbra Collaboration Suite 7 (ZCS) on CentOS 5.x (64Bit). Zimbra is a collaboration suite very widely used in the world. Users can share folders, contacts, schedules and other things, using a very rich web interface. One important note is that we're using CentOS 5 64bits, that is not oficially supported by Zimbra team (only RHEL and SUSE are). But CentOS works fine with Zimbra.

I needed to test serial communication between two VirtualBox guest machines on Linux. This tutorial describes what I did to set up a serial port between two virtual machines running on VirtualBox.

This tutorial shows how to prepare a CentOS 5.6 x86_64 server for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache web server, Postfix mail server, MySQL, BIND nameserver, PureFTPd, SpamAssassin, ClamAV, and many more.

FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to configure PureFTPd to accept TLS sessions on a CentOS 5.5 server.

Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on an OpenSUSE 11.4 server with PHP5 support (through FastCGI) and MySQL support.

amon.so is a library that integrates with the PHP interpreter and intercepts and manipulates the system calls provided by libc6. It replaces the execve() syscall with a custom function which does extra sanity checking in order to prevent that an attacker could execute arbitrary code on the system exploiting a vulnerability in a web-based application (such as a bugged cms). It's open-source software released under the terms of the GPL license and compatible with PHP running as a CGI process or Apache's DSO module.

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on an OpenSUSE 11.4 server with PHP5 support (through PHP-FPM) and MySQL support.

This tutorial shows how to configure and use Network UPS Tools (NUT) software with an USB (Uninterruptable Power Supply) on CentOS 5.5. NUT is a software which supports several thousand models.

In this tutorial I will describe how to configure mod_compress on a Lighttpd web server (on Debian Squeeze). mod_compress allows Lighttpd to compress files and deliver them to clients (e.g. browsers) that can handle compressed content which most modern browsers do. With mod_compress, you can compress HTML, CSS, Javascript, text or XML files to approx. 20 - 30% of their original sizes, thus saving you server traffic and making your modem users happier.

FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to configure PureFTPd to accept TLS sessions on an Ubuntu 10.10 server.

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on an OpenSUSE 11.4 server with PHP5 support (mod_php) and MySQL support.

This howto describes how to set up a local intranet web based office suite server (on Ubuntu 10.10 server) based on Feng Office which used to be OpenGoo. Feng Office has a range of groupware type products such as word processing, email, calendar, and presentations.

This tutorial shows how you can set up an OpenSUSE 11.4 desktop that is a full-fledged replacement for a Windows desktop, i.e. that has all the 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 works even on old hardware, and the best thing is: all software comes free of charge.

Kippo is a medium interaction SSH honeypot designed to log brute force attacks and, most importantly, the entire shell interaction performed by the attacker. Kippo is inspired, but not based on Kojoney. This tutorial shows how you can compile and install Kippo on a CentOS 5.5 server.

This tutorial provides step-by-step instructions on how to install Xen 4.0 on a Debian Squeeze (6.0) system (AMD64) and create paravirtualized guests. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.

Managing News is an RSS/Atom based news tracker with search, republishing and mapping. This tutorial shows how to install Managing News on an Ubuntu server.

This tutorial shows how you can enable Compiz Fusion on a Debian Squeeze desktop (the system must have a 3D-capable graphics card - I'm using an Nvidia GeForce 8200 here). With Compiz Fusion you can use beautiful 3D effects like wobbly windows or a desktop cube on your desktop.

OpenVPN, or Open Virtual Private Network, is a tool for creating networking "tunnels" between and among groups of computers that are not on the same local network. This is useful if you have services on a local network and need to access them remotely but don't want these services to be publicly accessible. By integrating with OpenSSL, OpenVPN can encrypt all VPN traffic to provide a secure connection between machines.