Networking and InterNetworking

Apache
Robust, commercial-grade, featureful HTTP server
Count
WWW access counter
Fast CGI Development Kit
freeWAIS
Wide Area Information Server
FTP
ncftp, tftpd, wu-ftpd, xdir FTP daemons and clients
Httpanalyze
Log analyzer for web servers
IRC/Zircon
Internet Relay Chat server and Tcl/Tk client
LDAP (OpenServer 5)
Lightweight Directory Access Protocol server
Ad Zapper (used with Squid)