How To Prevent SSH From Prompting When The Host Is Unknown
erics, Posted January 26th, 2022 at 1:53:30pm
If you are asked “Are you sure you want to continue connecting (yes/no)?” when trying to connect via SSH, then the remote host’s identification key has not yet been stored in your ~/.ssh/known_hosts file.
This then requires you to type the full string “yes” in order to proceed because the default value for ssh is StrictHostKeyChecking=ask.
To bypass this behavior (not recommended), you may add the -o StrictHostKeyChecking=no
BEFORE
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myHost$ ssh demohost The authenticity of host 'demohost (10.2.2.11)' can't be established. ECDSA key fingerprint is SHA256:6KdaBv7v4+aIh1yCegIMjSFQzIqZm+LlK3Livs34OOA. Are you sure you want to continue connecting (yes/no)? <strong>yes</strong> Warning: Permanently added 'demohost' (ECDSA) to the list of known hosts. |
AFTER
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myHost$ ssh -o StrictHostKeyChecking=no demohost Warning: Permanently added 'demohost' (ECDSA) to the list of known hosts. |
Categories: How-To's, Technology ask, Check, Checking, Host, howto, interactive, key, known_hosts, prompt, ssh, Strict, StrictHostKeyChecking, tips
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