On Thu, May 5, 2022 at 6:54 PM Michael Jumper <mjum...@apache.org> wrote:
> On Sun, May 1, 2022 at 12:36 AM Yang Yang <yy8...@icloud.com.invalid> > wrote: > >> Hi Nick, >> >> I found that only ssh-rsa and ssh-dss are mentioned in ssh_agent.c >> <https://github.com/apache/guacamole-server/blob/b2ae2fdf003a6854ac42877ce0fce8e88ceb038a/src/protocols/ssh/ssh_agent.c#L59>, >> does that mean other algorithms are currently not supported? >> > > No, ssh_agent.c only deals with SSH agent forwarding support which is not > in play here. For authentication with an SSH server, any key format > supported by the libssh2 library present on the system can be used. > > Also, if you're using Ubuntu with libssh2 1.8.0, you probably don't have support for some of the host key algorithms, According to their change log, 1.9.0 introduced support for ECDSA and ED25519 key support, so you'll probably need to bump up the version of libssh2. It's pretty easy to build manually, so shouldn't be too difficult, or find a distribution that includes it by default. -Nick
