sorry, got typos for algorithm names: ssh-rsa and ssh-dss are not included in default sshd_config settings.
> On May 1, 2022, at 00:02, Yang Yang <yy8...@icloud.com.INVALID> wrote: > > Hello, > > I am using Guacamole 1.4.0 to connect a Ubuntu 22.04 machine with OpenSSH > Server with username and password, all with default settings, but failed. The > guacd log only tells “SSH handshake failed”, while /var/log/auth.log in the > Ubuntu machine tells “Unable to negotiate with UBUNTU-ADDRESS port XXXXX: no > matching host key type found. Their offer: ssh-rsa,ssh-dss [preauth]”. > > I can successfully connect to the Ubuntu machine after adding > “HostKeyAlgorithms +ssh-rsa” to /etc/ssh/sshd_config in the Ubuntu machine, > but is there anything I can do from Guacamole side? From the man page of > sshd_config <https://man.openbsd.org/sshd_config#HostKeyAlgorithms>, ssh-rasa > and ssh-dns is not included by default. > > Thanks, > Yang
