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DSPAM is a scalable and open-source content-based spam filter designed for multi-user enterprise systems. It is great at filtering out spam but on busy mailservers the pruning of the MySQL databases takes way too much time.

This is a detailed description how to set up a Fedora Core 5 based server that offers all services needed by ISPs and hosters (Apache web server (SSL-capable), Postfix mail server (with SMTP-AUTH and TLS), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.).

Zabbix has the capability to monitor just a about any event on your network from network traffic to how many papers are left in your printer. It produces really cool grahps.

  

Employee turnover in most organizations runs high. So unless you run a small shop with a stable user base, you need to learn how to clean up after an employee leaves. Too many so-called system administrators do not understand the stakes involved when they manage users.

This tutorial provides step-by-step instructions on how to install Xen 3.0.1 on a Debian Sarge system. Xen lets you create guest operating systems, so called "virtual machines" or domUs, under a host operating system (dom0).

This tutorial provides step-by-step instructions on how to install Xen (version 3.0.1) on a Debian Sarge (3.1) system.

Xen lets you create guest operating systems, 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 tutorial was written to help set up a dual boot on a SATA drive but it will also work for PATA. In order to have a fully functional Windows/Linux dual boot system it is preferred that Windows is loaded first. After that you can load Linux and easily dump the boot configuration on Windows NTLDR file (comparable to Linux boot file).

This tutorial was written to help set up a dual boot on a SATA drive but it will also work for PATA. In order to have a fully functional Windows/Linux dual boot system it is preferred that Windows is loaded first. After that you can load Linux and easily dump the boot configuration on Windows NTLDR file (comparable to Linux boot file).

In this tutorial I will describe how to set up a high-availability NFS server that can be used as storage solution for other high-availability services like, for example, a cluster of web servers that are being loadbalanced.

I will describe how to set up a high-availability NFS server that can be used as storage solution for other high-availability services like, for example, a cluster of web servers that are being loadbalanced.
In fact, I will create two NFS servers that mirror their data to each other in realtime using DRBD and that monitor each other using heartbeat, and if one NFS server fails, the other takes over silently. To the outside (e.g. the web server nodes) these two NFS servers will appear as a single NFS server.

This tutorial shows you how to configure a BIND9 DNS server to serve an internal network and an external network at the same time with different set of information. To accomplish that goal, a new feature of BIND9 called view is used.

This tutorial describes how to prepare a server for OpenVZ virtual machines on a Debian Sarge system. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project.

Apache server performance can be improved by adding additional hardware resources such as RAM, faster CPU etc. But, most of the time, the same result can be achieved by custom configuration of the server. This article looks into getting maximum performance out of Apache with the existing hardware resources, specifically on the Linux systems.

Apache server performance can be improved by adding additional hardware resources such as RAM, faster CPU etc. But, most of the time, the same result can be achieved by custom configuration of the server. This article looks into getting maximum performance out of Apache with the existing hardware resources, specifically on the Linux systems.

http://www.howtoforge.com/configuring_apache_for_maximum_performance

[ED: Nice guide - HC]

This tutorial explains how to setup an Apache2 web server in order to support Java Server Pages (JSP) and Servlets using virtually hosted websites. Tomcat 5 is used as servlet container, and mod_jk as Tomcat connector.