Require the host key to already be known.
Section: Authentication
Strict host key checking
bash
bash
ssh -o StrictHostKeyChecking=yes user@example.comExplanation
Require the host key to already be known.
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Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Authentication
Accept new host keys automatically
Accept first-seen host keys but still protect against changed keys.
Override host key algorithms
Specify accepted host key algorithms explicitly.
Restrict preferred auth methods
Control which auth methods the client attempts first.