Firewall audit products are maturing, but the product class is still a relatively young, small market, defined by compliance requirements. You have a fairly limited choice of vendors, including Tufin Software Technologies, AlgoSec, Secure Passage and Athena Security, which all come with firewall audit pedigrees, and RedSeal Systems and Skybox Security, which are primarily vendors of risk-mitigation tools, and so go beyond firewall audit to feature sophisticated risk-assessment and risk-management capabilities.
Firewall audit tools automate the otherwise all-but-impossible task of analyzing complex and bloated rule sets to verify and demonstrate enterprise access controls and configuration change-management processes.
iScanner is free open source tool lets you detect and remove malicious codes and web pages viruses from your Linux/Unix server easily and automatically. This is a neat tool for those who have to do some clean up operation after a mass-exploitation or defacement on a shared web-host.
Today I will show you the iptables rules I set on my main personal computer, with detailed comments about why I came to use these rules after several years of Linux desktop usage. The rules I use now have been simplified as much as I could and are based on common rules and advice that can be found on the network and also on input I got from experienced network administrators. I