Postfix howto

Excellent write-up about setting up virtual users with mailbox quotas on a Postfix/Courier/MySQL configuration. The HOWTO is based on the Fedora 5 distribution. Read the full guide.

The Perfect Setup – CentOS 4.3 (64-bit)

Falko Timme explains how to build a low cost LAMP Server for your web hosting business with CentOS 4.3:

This is a detailed description how to set up a CentOS 4.3 based server that offers all services needed by ISPs and hosters (web server (SSL-capable), mail server (with SMTP-AUTH and TLS!), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.). This tutorial is written for the 64-bit version of CentOS 4.3, but should apply to the 32-bit version with very little modifications as well.

Read the full guide at the HowtoForge…

Mondo Rescue

Ravi has put together a very nice article about backing up and restoring filesystems under GNU/Linux using Mondo Rescue.

There are quite a few ways of getting a snapshot of a live system in Linux. Many of them requiring varying degrees of expertise. One such software is Mondo Rescue which simplifies the whole act of backup and restore of the filesystem in Linux.

Read the full article here

VNC Server

Here is another well-written article about setting up the pure VNC server on Fedora, but will do for other distros too.

Gnot writes in his article:

This article describes in brief how to configure VNC server instances for one or multiple users on a remote machine, how to use VNC to start graphical applications on boot and finally how to enhance security by connecting to the server through encrypted SSH tunnels.

Read the article here

Also take a look at FreeNX, UltraVNC, TightVNC.

Writing MySQL Scripts with Python DB-API

Python is one of the more popular Open Source programming languages, owing largely to its own native expressiveness as well as to the variety of support modules that are available to extend its capabilities. One of these modules is DB-API, which, as the name implies, provides a database application programming interface. DB-API is designed to be relatively independent of details specific to any given database engine, to help you write database-access scripts that are portable between engines.

Read Full Article
Good Read!

(IN)SECURE Magazine

(IN)SECURE Magazine is a freely available digital security magazine discussing some of the hottest information security topics. It can be distributed only in the form of the original non-modified PDF document.

Go grab it from here

IPtables Tutorial

This article talks about the iptables firewall administration program used to build a Netfilter firewall.

OpenSSH And Public Key Authentication

Very good write-up about how to setup an OpenSSH server, so that users have to authenticate by using public keys and not the insecure and vulnerable to brute-force attacks password authentication.
Setup the SSH server to use keys for authentication

Some Cheatsheets for Network Applications

Here are some nice cheatsheets for Nessus and NMap network scanners. No lengthy things, just an overview of the available options.
SecGuru Nmap and Nessus Cheatsheets