Altimate Firewall is a small and easy-to-use firewall, based on a hardened Gentoo system. It has an intuitive and easy-to-use Web interface. The Altimate Firewall uses Shorewall (LAN, WAN, DMZ), OpenVPN, PPTPD, IPSEC, and many more. It includes Avira WebGate and MailGate for safer browsing and for securing your email messages. The network settings can be easily managed by a non-professional.
Cyan Secure Web Proxy Server is a carrier grade, high performance Internet filtering proxy server for Linux. It includes scalable (user/group/host) Web filter and virus scan utilities for blocking malicious applications at the gateway. It has an advanced URL database, authentication support (Active Directory, LDAP, NTLM), SSL Interception, easy deployment, and remote administration.