ss - another utility to investigate sockets

ss is used to dump socket statistics. It allows
showing information similar to netstat. It can
display more TCP and state information than other
tools.

Synopsis

ss [options] [ FILTER ]

Examples

ss ‐t ‐a
Display all TCP sockets.

ss ‐t ‐a ‐Z
Display all TCP sockets with process
SELinux security contexts.

ss ‐u ‐a
Display all UDP sockets.

ss ‐o state established ’( dport = :ssh or sport = :ssh )’
Display all established ssh connections.

ss ‐x src /tmp/.X11‐unix/*
Find all local processes connected to X server.

ss ‐o state fin‐wait‐1 ’( sport = :http or sport = :https )’ dst 193.233.7/24
List all the tcp sockets in state
FIN‐WAIT‐1 for our apache to network 193.233.7/24
and look at their timers.

ss ‐a ‐A ’all,!tcp’
List sockets in all states from all
socket tables but TCP.