Authentication Logging Caching Filtering Gateway Integration   Access ctrl Routing Encryption Compression   Unix Windows

HTTP FTP SMTP POP IMAP NNTP Telnet   PAM   SOCKS DNS TLS/SSL IPv4/IPv6

Functions for each Application Protocol

• Cache (HTTP, FTP, NNTP, DNS)
• Filtering (data conversion, protocol translation, data restriction)
• Gateway (negotiated TLS, IPv6/IPv4 gateway)
• Integration (protocol translation, mounting, virtual hosting, reverse proxy)
• Authentication
• Logging

Common Functions

• Access Control (access restriction, authentication)
• Routing (application level routing)
• Gateway (IPv6/IPv4 gateway)
• Encryption (SSL)
• Compression

Supported Protocols

• HTTP (HTTPS)
• FTP (START TLS)
• SMTP (AUTH, START TLS)
• POP3 (START TLS, APOP/PASS conversion)
• NNTP
• Telnet
• ...

• DNS
• SOCKS
• TLS (SSL)
• IPv4/IPv6

Platforms

• Unix (Linux, MacOSX, FreeBSD, ...)
• Windows
• OS/2