[Info-vax] problem conncting via ssh to Fedora-linux-server FC22

[Joukj]

Dennis Boone wrote:
>  > I recently upgraded one of my Fedora-linux servers from FC21 to FC22. 
>  > After the upgrade I was not able to connect via ssh from my OpenVMS 
>  > machines to this server (see log for connections to FC22 (failed) and 
>  > FC21 (succeeded) below.) Connection from any of my linux servers is 
>  > still possible.
>  > It seems that something goes wrong when negotiating the ciphers.
> 
> From the OpenSSH 6.7 release notes:
> 
>     Changes since OpenSSH 6.6
>     =========================
> 
>     Potentially-incompatible changes
> 
>      * sshd(8): The default set of ciphers and MACs has been altered to
>        remove unsafe algorithms. In particular, CBC ciphers and arcfour*
>        are disabled by default.
> 
>        The full set of algorithms remains available if configured
>        explicitly via the Ciphers and MACs sshd_config options.
> 
> You were previously using a CBC cipher.
> 
> Check the man page for sshd_config on the FC system to find the option
> needed to put those back into play.
> 
> De

thanks, that solved the problem.
I added the ciphers/macs/kexs which were default in FC21,



amazing, that the even on a linux subject the OpenVMS community is much 
more helping than the linux community (I asked the same on a Fedora 
forum, but got 0 answers!!!)



However, when you do not "own" the ssh-server this is not a solution. 
How difficult would it be to build the OpenSSH client on top of the 
TCP/IP stack of OpenVMS?


                    Regards
                         Jouk