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Jörg Thalheim 2014-12-24 21:42:16 +01:00
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ss
Utility to investigate sockets
Args
-4/-6 list ipv4/ipv6 sockets
-n numeric addresses instead of hostnames
-l list listing sockets
-u/-t/-x list udp/tcp/unix sockets
-p Show process(es) that using socket
# show all listing tcp sockets including the corresponding process
ss -tlp
# show all sockets connecting to 192.168.2.1 on port 80
ss -t dst 192.168.2.1:80
# show all ssh related connection
ss -t state established '( dport = :ssh or sport = :ssh )'