ss


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
       When  no  option  is  used ss displays a list of open non-listening TCP
       sockets that have established connection.

       -h, --help
              Show summary of options.

       -V, --version
              Output version information.

       -n, --numeric
              Do not try to resolve service names.

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

       -a, --all
              Display both listening and non-listening  (for  TCP  this  means
              established connections) sockets.

       -l, --listening
              Display only listening sockets (these are omitted by default).

       -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.


       -t, --tcp
              Display TCP sockets.

       -u, --udp
              Display UDP sockets.

       -d, --dccp
              Display DCCP sockets.

       -w, --raw
              Display RAW sockets.

       -x, --unix
              Display Unix domain sockets (alias for -f unix).

       -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, --socket=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, --diag=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



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