OpenNetGuru

apache — Web server
boa — lightweight Web server
sshd — ssh server
sendmail — mail server
qmail — mail server
postfix — mail server
named — DNS server
bind    --- DNS Server
squid — Web proxy server
nessusd — penetration testing server
postgresql — database server
mysql — database server
oracle — database server
telnet — telnet server
wu-ftpd —  ftp server
vsftpf  ---- ftp server  
samba  --  windows file sharing