Follow-up Comment #3, sr#110996 (group administration): [comment #2 comment #2:] > Are you running Arch or Parabola and if so have you recently updated > to a newer version of ssh? This is me guessing and gathering > background information. > > The problem is most likely that the ssh client on your system is > rejecting the legacy 1024-bit rsa host key being presented by > fencepost and not trying either of the other two presented newer host > keys which are stronger.
I use Fedora Silverblue v39, but still may be the same problem > In the meantime let's see if we can help. As a temporary workaround I > think this next will force your ssh client to acept the key but to > upgrade to the strongest ED25519 key and store it into the known_hosts > file. > > Try this: > > ssh -o'UpdateHostKeys=yes' -o'HostkeyAlgorithms=+ssh-rsa' -o'PubkeyAcceptedAlgorithms=+ssh-rsa' fencepost.gnu.org > ... > ED25519 key fingerprint is SHA256:czIgr7VZvWzBireMUixS42C5dnq/H5DaRAbTD2Kgqpw. > ... Really appreciate the assistance, but unfortunately that gives me the exact same `Bad server host key: Invalid key length` with exit code 255. > If that works, allows you to accept the new key, and log into > fencepost, then on your client create an ed25519 key, and upgrade the > public key in your fencepost ~/.ssh/authorized_keys file to the > contents of the newly created id_ed25519.pub file on your client. > This is described somewhat more here for Savannah. > > https://savannah.nongnu.org/maintenance/SshAccess/ > > Then also log into your Savannah web UI and upgrade your access keys > for use with Savannah systems as this would likely be a problem for > any ssh access there too. > > I appreciate hearing feedback about these instructions. If they work. > If they don't work. If they were confusing. If they were clear. We > want to be able to help people with the best information possible. Instructions are clear and I do have an ed25519 and rsa key which have both been uploaded to Savannah, but perhaps I have to reach out to the FSF admin about that once I get this connection working. _______________________________________________________ Reply to this item at: <https://savannah.nongnu.org/support/?110996> _______________________________________________ Message sent via Savannah https://savannah.nongnu.org/
