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Secure my firewall
Find the HOWTO or step-by-step guide that you need right here.

Deploying A Content Filtering Proxy Server To Distribute Controlled Internet Access With SafeSquid  07 March 2008 
Source: - Posted by Ryan Berens   
A content filtering proxy server, helps distribute Internet access while providing control to the administrators over the content delivered. It is usually used in organizations or schools to ensure that Internet usage conforms to the local acceptable use policy. A content filtering proxy must necessarily accommodate the demands of granular rules for Internet access privileges and restrictions across an enterprise. Here's a quick step-by-step guide on setting up a proxy server. It's great to have such functionality freely available. But like all tools, how much knowledge do you think you need to make it work consistently and effectively?
A Linux firewall primer  20 June 2006 
Source: "A Linux firewall primer" - Posted by Administrator   
This article looks at some of the decision considerations in selecting a Linux-based firewall, including both considerations specific to firewall technology and general considerations about understanding Linux-based and open source options.
Firewall Piercing mini-HOWTO  20 June 2006 
Source: "Firewall Piercing mini-HOWTO" - Posted by Administrator   
Directions for using ppp over ssh, telnet or whatever, so as to do achieve transparent network connection accross a firewall.
Linux Firewalls: Packet Filtering  19 June 2006 
Source: "Linux Firewalls: Packet Filtering" - Posted by Administrator   
This article explains the general frame of reference for what network communication is, how network-based services are identified, what a packet is, and the types of messages and information sent between computers on a network.
Adaptive Linux Firewalls  19 June 2006 
Source: "Adaptive Linux Firewalls" - Posted by Administrator   
The objective of this document is to demonstrate how to harden iptables in real-time.
Firewall and Proxy Server HOWTO  19 June 2006 
Source: "Firewall and Proxy Server HOWTO" - Posted by Administrator   
This document is designed to describe the basics of firewall systems and give you some detail on setting up both a filtering and proxy firewall on a Linux based system.
The Perfect Linux Firewall Part I -- IPCop  19 June 2006 
Source: "The Perfect Linux Firewall Part I -- IPCop" - Posted by Administrator   
This document describes how to install the GNU/Linux GPL IPCop firewall and create a small home office network.
Linux Firewalls  19 June 2006 
Source: "Linux Firewalls" - Posted by Administrator   
This article describes different types of Linux firewalls: packet-filtering, ipchains, stateful, and layered.
Easy Firewall Generator for IPTables  19 June 2006 
Source: "Easy Firewall Generator for IPTables" - Posted by Administrator   
This program generates an iptables firewall script for use with the 2.4 or later linux kernel. It is intended for use on a single system connected to the Internet or a gateway system for a private, internal network.
IPTables HOWTO  17 January 2006 
Source: "IPTables HOWTO" - Posted by Administrator   
This document describes the main functions of the Netfilter Packet filter (IPTables) included in the 2.6.x series kernels.
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