Hi Nick, Thank you very much for the prompt response!
Guacamole/guacd is running on Ubuntu 20.04.4 LTS docker, with libssh2.so.1.0.1. Thanks, Yang > On May 1, 2022, at 00:05, Nick Couchman <vn...@apache.org> wrote: > > On Sat, Apr 30, 2022 at 12:02 PM 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. > > > What platform is Guacamole running on, and, specifically, what version of > libssh2 is installed? > > -Nick
