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SS(8)									 SS(8)

NAME
       ss - another utility to investigate sockets

SYNOPSIS
       ss [options] [ FILTER ]

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

OPTIONS
       These  programs	follow	the  usual  GNU command line syntax, with long
       options starting with two  dashes  (`-').   A  summary  of  options  is
       included below.

       -h, --help
	      Show summary of options.

       -V, --version
	      Output version information.

       -n, --numeric
	      Do now try to resolve service names.

       -r, --resolve
	      Try to resolve numeric address/ports.

       -a, --all
	      Display all sockets.

       -l, --listening
	      Display listening sockets.

       -o, --options
	      Show timer information.

       -e, --extended
	      Show detailed socket information

       -m, --memory
	      Show socket memory usage.

       -p, --processes
	      Show process using socket.

       -i, --info
	      Show internal TCP information.

       -s, --summary
	      Print  summary  statistics.  This	 option	 does not parse socket
	      lists obtaining summary from various sources. It is useful  when
	      amount  of  sockets  is  so  huge	 that parsing /proc/net/tcp is
	      painful.

       -4, --ipv4
	      Display only IP version 4 sockets (alias for -f inet).

       -6, --ipv6
	      Display only IP version 6 sockets (alias for -f inet6).

       -0, --packet
	      Display PACKET sockets.

       -t, --tcp
	      Display only TCP sockets.

       -u, --udp
	      Display only UDP sockets.

       -d, --dccp
	      Display only DCCP sockets.

       -w, --raw
	      Display only RAW sockets.

       -x, --unix
	      Display only Unix domain sockets.

       -f FAMILY, --family=FAMILY
	      Display sockets of type FAMILY.  Currently the  following	 fami‐
	      lies are supported: unix, inet, inet6, link, netlink.

       -A QUERY, --query=QUERY
	      List  of socket tables to dump, separated by commas. The follow‐
	      ing identifiers are understood: all, inet, tcp, udp, raw,	 unix,
	      packet,	 netlink,    unix_dgram,    unix_stream,   packet_raw,
	      packet_dgram.

       -D FILE
	      Do not display anything, just dump  raw  information  about  TCP
	      sockets  to  FILE after applying filters. If FILE is - stdout is
	      used.

       -F FILE, --filter=FILE
	      Read filter information from FILE.  Each line of FILE is	inter‐
	      preted  like  single  command line option. If FILE is - stdin is
	      used.

       FILTER := [ state TCP-STATE ] [ EXPRESSION ]
	      Please take a look at the official documentation (Debian package
	      iproute-doc) for details regarding filters.

USAGE EXAMPLES
       ss -t -a
	      Display all TCP sockets.

       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.

SEE ALSO
       ip(8), /usr/share/doc/iproute-doc/ss.html (package iproutedoc)

AUTHOR
       ss was written by Alexey Kuznetosv, <kuznet@ms2.inr.ac.ru>.

       This  manual page was written by Michael Prokop <mika@grml.org> for the
       Debian project (but may be used by others).

									 SS(8)
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