ss
Utility to investigate sockets. More information: https://manned.org/ss.8.
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Show all TCP/UDP/RAW/UNIX sockets:
ss -a {{-t|-u|-w|-x}}
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Filter TCP sockets by states, only/exclude:
ss {{state/exclude}} {{bucket/big/connected/synchronized/...}}
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Show all TCP sockets connected to the local HTTPS port (443):
ss -t src :{{443}}
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Show all TCP sockets listening on the local 8080 port:
ss -lt src :{{8080}}
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Show all TCP sockets along with processes connected to a remote ssh port:
ss -pt dst :{{ssh}}
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Show all UDP sockets connected on specific source and destination ports:
ss -u 'sport == :{{source_port}} and dport == :{{destination_port}}'
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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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Kill IPv4 or IPv6 Socket Connection with destination IP 192.168.1.17 and destination port 8080:
ss --kill dst {{192.168.1.17}} dport = {{8080}}
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