mosh Permission denied publickey

[christopherwoo]

I got something like:
The ECDSA host key for XXX has changed
How to fix it?

[JAremko]

@christopherwoo Try adding -o StrictHostKeyChecking=no to --ssh="..." part.
Cleaning $HOME/.ssh/known_hosts may be required.

[nfedyashev]

mosh --ssh="ssh -o StrictHostKeyChecking=no -p 62222" -- developer@172.17.0.2 tmux -u                                master 
Warning: Permanently added '[172.17.0.2]:62222' (ECDSA) to the list of known hosts.
developer@172.17.0.2: Permission denied (publickey).
/bin/mosh: Did not find mosh server startup message. (Have you installed mosh on your server?)

@JAremko Hi. Can you please give me a hint on what may fix this warning? Not sure where to start looking, haven't used mosh in the past

[JAremko]

@nfedyashev try mosh --ssh="ssh -v -o StrictHostKeyChecking=no -p 62222" -- developer@172.17.0.2 tmux -u it will give you more verbose log. But so far looks like the server doesn't have pub key of the client.

[nfedyashev]

@JAremko thank you!