ss

Utility to investigate sockets.

More information.

• Show all TCP/UDP/RAW/UNIX sockets:

ss -a {-t|-u|-w|-x}

• Filter TCP sockets by states, only/exclude:

ss {state/exclude} {bucket/big/connected/synchronized/...}

• Show all TCP sockets connected to the local HTTPS port (443):

ss -t src :{443}

• Show all TCP sockets listening on the local 8080 port:

ss -lt src :{8080}

• Show all TCP sockets along with processes connected to a remote ssh port:

ss -pt dst :{ssh}

• Show all UDP sockets connected on specific source and destination ports:

ss -u 'sport == :{source_port} and dport == :{destination_port}'

• Show all TCP IPv4 sockets locally connected on the subnet 192.168.0.0/16:

ss -4t src {192.168/16}

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