LCDUNG.

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode       PID/Program name
tcp        0      0 enlightened:domain      *:*                     LISTEN      root       11090       1144/dnsmasq    
tcp        0      0 localhost:ipp           *:*                     LISTEN      root       9755        661/cupsd       
tcp6       0      0 ip6-localhost:ipp       [::]:*                  LISTEN      root       9754        661/cupsd