13.1. Server socket binding13.1.1. Using “netstat” for server socket binding checkIt'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 |
| |
| |
Free eBook: 
