How to remove an ssh host by name or ip from your authorized hosts file.
ssh-keygen -R {server.example.com}
ssh-keygen -R {ssh.server.ip.address}
Tag: key
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Remove RSA key for ssh authorized hosts file
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Ignore Ssh host key
Sometimes when you connect to a ssh server whois host key has changed, ssh client warns you about it. If you want to ignore that advice use StictHostkeyChecking no option.
ssh -o 'StrictHostKeyChecking no' [email protected]