It's always interesting which server sockets are currently active on a node. Using ”netstat” is a short way to get such information:
Used options: -nlptu
Example:
# netstat -nlptu Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State ¬ PID/Program name tcp 0 0 0.0.0.0:32768 0.0.0.0:* LISTEN ¬ 1258/rpc.statd tcp 0 0 0.0.0.0:32769 0.0.0.0:* LISTEN ¬ 1502/rpc.mountd tcp 0 0 0.0.0.0:515 0.0.0.0:* LISTEN ¬ 22433/lpd Waiting tcp 0 0 1.2.3.1:139 0.0.0.0:* LISTEN ¬ 1746/smbd tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN ¬ 1230/portmap tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN ¬ 3551/X tcp 0 0 1.2.3.1:8081 0.0.0.0:* LISTEN ¬ 18735/junkbuster tcp 0 0 1.2.3.1:3128 0.0.0.0:* LISTEN ¬ 18822/(squid) tcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN ¬ 30734/named tcp 0 0 ::ffff:1.2.3.1:993 :::* LISTEN ¬ 6742/xinetd-ipv6 tcp 0 0 :::13 :::* LISTEN ¬ 6742/xinetd-ipv6 tcp 0 0 ::ffff:1.2.3.1:143 :::* LISTEN ¬ 6742/xinetd-ipv6 tcp 0 0 :::53 :::* LISTEN ¬ 30734/named tcp 0 0 :::22 :::* LISTEN ¬ 1410/sshd tcp 0 0 :::6010 :::* LISTEN ¬ 13237/sshd udp 0 0 0.0.0.0:32768 0.0.0.0:* ¬ 1258/rpc.statd udp 0 0 0.0.0.0:2049 0.0.0.0:* ¬ - udp 0 0 0.0.0.0:32770 0.0.0.0:* ¬ 1502/rpc.mountd udp 0 0 0.0.0.0:32771 0.0.0.0:* ¬ - udp 0 0 1.2.3.1:137 0.0.0.0:* ¬ 1751/nmbd udp 0 0 0.0.0.0:137 0.0.0.0:* ¬ 1751/nmbd udp 0 0 1.2.3.1:138 0.0.0.0:* ¬ 1751/nmbd udp 0 0 0.0.0.0:138 0.0.0.0:* ¬ 1751/nmbd udp 0 0 0.0.0.0:33044 0.0.0.0:* ¬ 30734/named udp 0 0 1.2.3.1:53 0.0.0.0:* ¬ 30734/named udp 0 0 127.0.0.1:53 0.0.0.0:* ¬ 30734/named udp 0 0 0.0.0.0:67 0.0.0.0:* ¬ 1530/dhcpd udp 0 0 0.0.0.0:67 0.0.0.0:* ¬ 1530/dhcpd udp 0 0 0.0.0.0:32858 0.0.0.0:* ¬ 18822/(squid) udp 0 0 0.0.0.0:4827 0.0.0.0:* ¬ 18822/(squid) udp 0 0 0.0.0.0:111 0.0.0.0:* ¬ 1230/portmap udp 0 0 :::53 :::* ¬ 30734/named |
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