“Add correct host key in known_hosts” / multiple ssh host keys per hostname?

  1. get the rsa key of your server, where server_ip is your server’s IP address, such as 192.168.2.1:

    $ ssh-keyscan -t rsa server_ip

    Sample response:

    # server_ip SSH-2.0-OpenSSH_4.3
server_ip ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAwH5EXZG...

  2. and on the client, copy the entire response line server_ip ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAwH5EXZG..., and add this key to the bottom of your ~/.ssh/known_hosts file:

    server_ip ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAqx9m529...(the offending key, and/or the very bottom of the `known_hosts` file)
server_ip ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAwH5EXZG... (line you're adding, copied and pasted from above)

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