For reference to anyone coming here with this problem, when connecting to a remote sshd server you can find what host key algorithms the remote host uses by using -vv and check the debug output; look first for the *peer* server KEXINIT proposal (not the earlier *local client* KEXINIT proposal):
debug2: peer server KEXINIT proposal a line or two after that, you should see the list of host key algorithms the remote host is offering; if it contains *only* ssh-rsa then this bug is relevant. debug2: host key algorithms: ssh-rsa Note that by default many systems support multiple algorithms, e.g. you may see: debug2: host key algorithms: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh- ed25519 in this case, even though the remote host does offer ssh-rsa, it also supports other algorithms that jammy does support. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1961833 Title: openssh 8.8 breaks login to Canonical servers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1961833/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
