SECURITY BULLETINS

• CERT® Coordination Center ~ Security and alert service.

• Microsoft Security Advisor ~ Official security alert bulletins for MS products.

• Microsoft Security ~ Official security alert bulletins, tools, check lists and best practices.

• ftp.microsoft ~ Official Microsoft hotpatches for NT servers.

• NT Bugtraq ~ Security exploits and security bugs in Windows NT.

• NT Security ~ NT server security information and tools.

• Internet Protection for Windows 95 and NT 4 ~ Information on security and cracking.

• Kane Security ~ Intrusion detection for NT servers.

• X-Force ~ Security and alert service from Internet Security Systems.

• Network Computing ~ Articles about networking, security, firewalls, etc.

• lOpht Heavy Industries ~ Hacker and anti-cracker tools.

• CyberArmy ~ Listing of various hacker groups.

• ActiveX Plugin Check ~ Test for high risk plugins.

• Pennywize ~ Password trading and brute force protection.

SPAM TOOLS

• SPAM Blacklists ~ List of All Known DNS-based Spam Databases.

• DRB Check ~ Dr. Jørgen Mash's list of known DNS-based spam databases.

• DMOZ Listing ~ Open Directory Project's listing of SPAM blacklist sources.

• OPEN RBL ~ Various lookup tools and listings.

• SpamLinks ~ ORBL listing of helpful links to spam related websites.

• Netlantis ~ Tools for checking routes and connectivity. Extended WHOIS.

• Ironport Senderbase ~ Lookup service for email blacklisting and reputation.

• DNS Stuff ~ Tools for checking DNS information and connectivity.

• CompleteWHOIS ~ Lookup all information on domains. Also has extensive info on IPs and IP allocation.

OTHER

• Distributed.net ~ The fastest computer on the planet.

• BugNet ~ Up-to-date information on bugs relating to computer hardware and software.

• Browser Spy ~ Check your browser to see what everyone else can see.

• Browser Hawk ~ Check your browser to see what everyone else can see.

• Internet Domain Survey ~ Survey of the Internet and it's growth. Also BIND, INN, DHCP.

• Xanadu OSF ~ The original hypertext system that inspired it all is now open source.

• Trojan Ports ~ Ports used by hackers and crackers.

• Ports used by Trojans ~ Ports used by hackers and crackers.

• Snowhare's Utilities for Public Use ~ Various utilities for tracking and analyzing.

• Internet Security Freeware ~ Listing of personal firewalls.

• Tera Term ~ Secure shell terminal. Needs ssh extensions.

• Insecure.0rg ~ Home of the nmap security scanner.

• nmapwin ~ Sourceforge directory of the windows front-end for the nmap security scanner.

• F-Protect ~ Corporate anti-virus software.

HACKING

• System Internals ~ Powerful utilities that allow administration and testing of Win9x & NT systems.

• NetCat ~ Monitors TCP and UDP connections and shows all traffic. A hacker tool.

• Break Into Your Computer ~ Advise on securing your system.

• TECS Security Products ~ Firewalls, monitors, auditing, intrusion detection.