DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/ss.md

ss

Utility to investigate sockets. More information: https://manned.org/ss.

• Show all TCP/UDP/RAW/UNIX sockets:

ss {{[-a|--all]}} {{--tcp|--udp|--raw|--unix}}

• 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|--tcp]}} src :443

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

ss {{[-lt|--listening --tcp]}} src :8080

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

ss {{[-pt|--processes --tcp]}} dst :ssh

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

ss {{[-u|--udp]}} 'sport == :{{source_port}} and dport == :{{destination_port}}'

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

ss {{[-4t|--ipv4 --tcp]}} src 192.168/16

• Kill IPv4 or IPv6 Socket Connection with a specific destination IP and port:

ss {{[-K|--kill]}} dst {{ip_address}} dport = {{port}}