“Updates to General free tools this week include Stunnel, The Coroner’s Toolkit and Tcpdump.”
“Auditing and Intrusion Monitoring tools include Nessus, Snort, Saint, Sara, NetSaint, Lsof and 8 other new tools.”
“Firewalls for Unix/Linux/BSD & Cross-platform include Zorp, IPtables, GShield, RChains, FwLogWatch, Knetfilter and an interesting article about NetFilter.”
“Tools for Unix/Linux/BSD & Cross-platform include Exiscan, BFBTester and 6 other tools (Gpkcs looks interesting).”