IptablesWeb
IptablesWeb is a free software (under GPL licence): it makes possible to inspect iptables logs by using a web browser. It's a plugin-based multilanguage software written in PHP using 3 free php classes.
Discover How To Secure My Network HOWTOs
Networking in NSA Security-Enhanced Linux
Break through the complexity of SE Linux with a working example that shows how to add SE Linux protection to a simple network server.
Intruder Detection Checklist
This document outlines suggested steps for determining if your system has been compromised.
Denial of Service Attacks
This document provides a general overview of attacks in which the primary goal of the attack is to deny the victim(s) access to a particular resource.
Packet Filtering for Firewall Systems
If your site isn't filtering certain TCP/IP packets, it may not be as secure as you think.
Setting up VPNs easily with CIPE
This article should explain how to setup and configure a VPN using CIPE. CIPE may not be standard like IPSec, but it sure is a hell of a lot simpler.
