tldr/pages/linux/ss.md

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# ss
> Utility to investigate sockets.
- 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 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}}`