root@debian:~# ps ax | grep identd
 4941 ?        S      0:00 [identd]
root@debian:~# nmap -sT -I -p 113 localhost

Starting nmap 3.27 ( www.insecure.org/nmap/ ) at 2003-08-27 06:47 CEST
Interesting ports on debian (127.0.0.1):
Port       State       Service                 Owner
113/tcp    open        auth                    nobody

Nmap run completed -- 1 IP address (1 host up) scanned in 0.375 seconds
root@debian:~# nmap -sT -I -p 113 192.168.100.20

Starting nmap 3.27 ( www.insecure.org/nmap/ ) at 2003-08-27 06:48 CEST
Interesting ports on 192.168.100.20:
Port       State       Service                 Owner
113/tcp    open        auth                    nobody

Nmap run completed -- 1 IP address (1 host up) scanned in 0.443 seconds
root@debian:~#