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Posted to user@guacamole.apache.org by anburhce <an...@gmail.com> on 2020/04/24 15:54:31 UTC

Libssh2 has less key exchange methods when compare to libssh.

Hi all,

I am using guacamole 0.9.14 and libssh2-1.9.0.

 it is working well without any issue till now. 

Recently, the application team they have updated the patch on their system.
So after that, we were not able to do ssh to their systems using guacamole.

Whereas when we  try to login using OpenSSH (putty or login from linux
system )  is working 

So i  checked and found only the below mentioned key exchange methods are
allowed on remote Linux systems.

*"curve25519-sha256@libssh.org,ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256"*

But all these key exchange methods are not supported by libssh2. Whereas it
is supported on libssh.

Libssh key exchange methods.



 

Libssh2 key exchange methods.



 

so is there any option to choose libssh instead of libssh2 while installing? 

Or suggest me some good ideas  to rectify this issue.

 



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Re: Libssh2 has less key exchange methods when compare to libssh.

Posted by Mike Jumper <mj...@apache.org>.
On Fri, Apr 24, 2020 at 8:54 AM anburhce <an...@gmail.com> wrote:

> Hi all,
>
> I am using guacamole 0.9.14 and libssh2-1.9.0.
> ...
> so is there any option to choose libssh instead of libssh2 while
> installing?
>

The short answer is "no, they are entirely different libraries". It is not
possible to use libssh in place of libssh2 without substantial changes to
Guacamole's SSH support.

Migration from libssh2 to libssh is being considered:

https://issues.apache.org/jira/browse/GUACAMOLE-945

- Mike