Privatefirewall Privatefirewall™ is a software tool that continuously checks and changes settings that allow unauthorized users access to information stored on a Windows or NT-based PC. Privatefirewall also constantly monitors other sensitive areas of a PC where intrusion can occur and reports on their status so that users can make regular decisions about these areas and make changes as necessary. http://www.privacyware.com
rpc_chk.sh Bourne shell script to get a list of hosts from a DNS nameserver for a given domain and return a list of hosts running rexd or ypserve. http://firewall.com/software/rpc_chk.sh
Secure CommNet 2.0 Secure CommNet supports Secure Shell (SSH2), Telnet and dial-up connections over the Internet. 32-bit Windows. http://www.radient.com
Secure Computing Corporation Markets security software for global enterprises, government agencies and small-medium businesses. Provides the strongest access control, authentication, firewall, and web filtering solutions for Internet and extranets. http://www.securecomputing.com
Securepoint Firewall Server SB The Securepoint Firewall Server Small Business Edition is one of the``best free firewall systems. The Securepoint Firewall Server is a``high-performance, commercial-grade application designed to offer``full protection for network assets. http://www.securepoint.cc
Security Booster Test your PC's security and protect it from hackers. Secure your PC from hackers, prevent online fraud using your identity and protect your privacy instantly. http://www.inklineglobal.com/products/sb/
Secusys Premier pôle francophone de sécurité informatique http://www.secusys.com
seq_number.c Code to exploit the TCP Sequence Number Generator bug. An brief but clear explanation of the bug can be found in Steve Bellovin's sequence number comment. Note that this code won't compile as-is because it is missing a library that does some of the low-level work. This is how the source was released by Mike Neuman, the author. See his Bugtraq post for more info. http://firewall.com/software/seq_number.c
SiegeSoft.com Internet security and privacy products and information for anonymous surfing, secure email communication, virus protection, internet cookie management and more. http://www.siegesoft.com
Smoothwall This is a very powerful and easy to setup firewall based on Linux that can be implemented on an old 486 or low speed pentium computer.````Features VPN, Web Proxy, Intrusion Detection, Access through Web Browser for configuration and stats. http://www.smoothwall.org