thanks for the hint. but I am not sure if the output of lsof -i is complete. this is what I get: Code: ~/MyDocs/Scripts $ lsof -i COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME browser 1405 user 14u IPv4 7251 UDP *:60211 ~/MyDocs/Scripts $ netstat -tulne Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 127.0.0.1:28782 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN netstat: no kernel support for AF INET6 (tcp) udp 0 0 0.0.0.0:2948 0.0.0.0:* udp 0 0 0.0.0.0:60211 0.0.0.0:* udp 0 0 127.0.0.1:53 0.0.0.0:* udp 0 0 127.0.0.1:3001 0.0.0.0:* udp 0 0 127.0.0.1:3002 0.0.0.0:* netstat: no kernel support for AF INET6 (udp) what about the udp port 2948?
~/MyDocs/Scripts $ lsof -i COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME browser 1405 user 14u IPv4 7251 UDP *:60211 ~/MyDocs/Scripts $ netstat -tulne Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 127.0.0.1:28782 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN netstat: no kernel support for AF INET6 (tcp) udp 0 0 0.0.0.0:2948 0.0.0.0:* udp 0 0 0.0.0.0:60211 0.0.0.0:* udp 0 0 127.0.0.1:53 0.0.0.0:* udp 0 0 127.0.0.1:3001 0.0.0.0:* udp 0 0 127.0.0.1:3002 0.0.0.0:* netstat: no kernel support for AF INET6 (udp)