IP Masquerade is a form of Network Address Translation or NAT which NAT allows internally connected computers that do not have one or more registered Internet IP addresses to communicate to the Internet via the Linux server's Internet IP address. The software interface which enables one to configure the kernel for IP masquerading is iptables.

You are interested in learning all the basics about running your own mail server using Debian Squeeze? Be my guest. All you need is a computer running Debian (Squeeze) and an internet connection. This tutorial explains step-by-step how to set up such a server and give you lots of background information in the process.

eBox Platform is the Linux small business server that allows you to manage all your network services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators.

Whoinix is based on Debian and uses Tor and VirtualBox to make one anonymous to the outside world. The OS is made of two virtual machines, one just runs Tor and acts as a gateway to the Internet, while the other uses a completely isolated network which you can use for your work.

Weeks ago when I was trying to setup Ubuntu in my pc for the first time, installing new software you need in your new pc would be a impossible process without internet or any Repository DVDs. I managed to get a few resources from net and here I will explain it as a step by step procedure.

Debian is well respected as a stable server distribution, and most of the reviews focus on aspects appropriate to server deployments. This article covers Debian on the desktop. It is not a step by step tutorial, but focuses on the highlights of the recent Etch release.

So far, Ubuntu is outpacing Debian on the $0 Laptop, a Gateway Solo 1450 that I resurrected from the dead by replacing its shattered power plug.

This tutorial shows how to set up an Ubuntu Hardy Heron (8.04 LTS) based server as a spamfilter in Gateway mode. In the end, you will have a SpamSnake Gateway which will relay clean emails to your MTA. You will also be able to view your incoming queue, train your SpamSnake and carry out a few more advanced operations via MailWatch.

Eric Geier introduces the Untangle Gateway, a Linux-based user-friendly Internet shield that provides a firewall, ad-blocking, anti-malware, protocol control, secure VPN, WAN balancing and failover, and other advanced and essential services for safely navigating the big bad Internet.