UNIX networking commands
in.tftpd in.tftpd (1m) - Internet Trivial File Transfer Protocol server
tftpd in.tftpd (1m) - Internet Trivial File Transfer Protocol server
whois whois (1) - Internet user name directory service
*inetd inetd (1m) - Internet services daemon
*arp arp (1m) - address resolution display and control
Section 4, related configuration files ( All are pretty relevant )
netconfig netconfig (4) - network configuration database