[root@fletch tcarter]# netstat -tap Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 *:6010 *:* LISTEN 14064/sshd tcp 0 464 fletch.cartershouse:ssh russell.pppl.gov:49415 ESTABLISHED 14064/sshd tcp 0 0 *:6000 *:* LISTEN 24540/X tcp 0 0 *:imap2 *:* LISTEN 26131/stunnel tcp 0 0 *:www *:* LISTEN 759/httpd tcp 0 0 *:printer *:* LISTEN 733/ tcp 0 0 *:ssh *:* LISTEN 717/sshd [root@fletch tcarter]# nmap localhost Starting nmap V. 2.30BETA21 by fyodor@insecure.org ( www.insecure.org/nmap/ ) Interesting ports on localhost (127.0.0.1): (The 1514 ports scanned but not shown below are in state: closed) Port State Service 22/tcp open ssh 80/tcp open http 143/tcp open imap2 515/tcp open printer 6000/tcp open X11 Nmap run completed -- 1 IP address (1 host up) scanned in 1 second