On 4/28/2024 2:54 AM, Ulrich Sibiller wrote:
Not directly, but libssh (partly) read your ssh config. So you can add a host stanza with the settings for your destination host there.
Are you quite sure? With the following in my ssh config file
Host example.com PubkeyAcceptedAlgorithms +ssh-rsa HostKeyAlgorithms=+ssh-rsa
I can run ssh on the command line successfully but trying to start an x2go session results in
kex error : no match for method server host key algo: server [ssh-rsa,ssh-dss], client [rsa-sha2-512,rsa-sh a2-256,ssh-ed25519,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,sk-ssh-ed25519@openssh.com,s k-ecdsa-sha2-nistp256@openssh.com]
Does x2go actually use the system ssh executable (e.g. /usr/bin/ssh)? The reason I'm asking is because I did an experiment and renamed ssh to xxx. I got the same result, shown above, when running the x2goclient! This was a surprise.
Thanks, Jon
Jon Forrest <nobozo@gmail.com <mailto:nobozo@gmail.com>> schrieb am Sa., 27. Apr. 2024, 20:30:
Due to reasons too sad to describe, I need to X2go from a modern Fedora 40 system to a Ubuntu 10.04 (!) system.
Running ssh from the command line fails with the message
Unable to negotiate with XX.XX.XX.XX port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss
After some work I got this to work by adding
-oHostKeyAlgorithms=+ssh-rsa -oPubkeyAcceptedAlgorithms=+ssh-rsa
to the ssh command line.
My question is how can I add these options to the ssh command that X2go executes on the client?
Cordially, Jon Forrest _______________________________________________ x2go-user mailing list x2go-user@lists.x2go.org <mailto:x2go-user@lists.x2go.org> https://lists.x2go.org/listinfo/x2go-user <https://lists.x2go.org/listinfo/x2go-user>