UNIX Networking commands
*netstat netstat (1m) - show network status
*ping ping (1m) - send ICMP ECHO_REQUEST packets to network hosts
snoop snoop (1m) - capture and inspect network packets
nslookup nslookup (1m) - query name servers interactively
*tcpdump tcpdump (1) - dump traffic on a network
*route route (1m) - manually manipulate the routing tables
in.named in.named (1m) - Internet domain name server