system environment/daemons

• clamd - The Clam AntiVirus Daemon
• maildrop - Mail delivery agent with filtering abilities
• memcached - High Performance, Distributed Memory Object Cache
• mod_fcgid - FastCGI interface module for Apache 2
• mod_qos - Quality of service module for Apache
• mod_ruid2 - Run all httpd process under user's access right.
• mod_security - Security module for the Apache HTTP Server
• mod_sed - mod_sed can be used to filter input/output data using sed commands.
• nginx - Robust, small and high performance HTTP and reverse proxy server
• ngircd - Next Generation IRC Daemon
• rbldnsd - Small, fast daemon to serve DNSBLs
• xl2tpd - Layer 2 Tunnelling Protocol Daemon (RFC 2661)