[GTALUG] dh key exchange question.

[Mike]

Hi Karen,

I found a reference at Dreamhost wherein a user says that Support hold
him that "diffie-hellman-group1-sha1 was recently removed for security
concerns".  This is 26 days ago.  The reference URL is:

 https://discussion.dreamhost.com/t/ssh-issue-with-key-exchange-algorithms/68804

It may be that your SSH client does not support newer DH modes, for
example group 14.  Is there a way you can find out what key exchange
modes and ciphers your SSH client supports?

Regards,
Mike


On 10/2/18, Karen Lewellen via talk <talk at gtalug.org> wrote:
> Hi folks,
> The accessible ssh client I use provides a way to send dh keys when I use
> ssh TELNET to reach a location.
> I have a bell dsl account, and since the first of July I have not been
> able to reach dreamhost who hosts my office shell.
> While I have not ruled out Bell as the problem, it started  one day when
> they claimed to have a service interruption,  and refuse to discuss Linux
> at all, I want to see if something else might have happened.
> With very few exceptions, every place where I visit involving port 22
> presents the same dh key exchange failure.
> Was openssh updated on June 29 2018?
> Hosting companies who use some  different Linux options for their shell
> services, scientific for example, still work.  Shellworld does too, but we
> use  a different port for ssh and the administrator  still allows most
> public keys.
> can anyone provide wisdom here?
> Thanks,
> Karen
>
>
> ---
> Talk Mailing List
> talk at gtalug.org
> https://gtalug.org/mailman/listinfo/talk
>