2025-03-14 21:59:59 -06:00
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# knock
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> Port knocking client to open specific ports on firewall.
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> More information: <https://manned.org/knock>.
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- Knock on ports using different protocols:
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`knock {{hostname}} {{portnumber}}:{{protocol}}`
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- Knock on port using UDP:
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2025-05-08 12:26:01 -06:00
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`knock {{[-u|--udp]}} {{hostname}} {{portnumber}}`
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2025-03-14 21:59:59 -06:00
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- Force usage of IPv4/IPv6:
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`knock {{-4|-6}} {{hostname}} {{portnumber}}`
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- Display errors and details of connection:
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2025-05-08 12:26:01 -06:00
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`knock {{[-v|--verbose]}} {{hostname}} {{portnumber}}`
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