How to disable the SSH host key check?
How to disable the SSH check of host authenticity and the key fingerprint?
Define the StrictHostKeyChecking option and set it to 'no' when connecting.
ssh -o StrictHostKeyChecking=no user@hostnameThe ssh command can be instructed to ignore incorrect host keys with the -o StrictHostKeyChecking=no option. This sets the option StrictHostKeyChecking to ignore changed host keys.
This setting can also be configured in /etc/ssh_config to define it as its default. An alternative is to define it per host, in the file in your home directory ~/.ssh/config .
Command line usage
To use this option on the command line, specify the setting and set it to no.
ssh -o StrictHostKeyChecking=no user@hostname
Possible security impact
Disabling this check may increase the risk of a MitM attack. When possible, try to confirm why the host key changed. When using a hostname, confirm first that the name resolution is correct.
