> The key exchange methods offered when opening an SSH tunnel are all
> SHA1 and therefore too weak:
>
> [sshd] fatal: Unable to negotiate with xxx.xxx.xxx.xxx: no matching
> key exchange method found. Their offer:
> diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,
> diffie-hellman-group1-sha1 [preauth]
Any news on this? If there's no easy way to add safer kexes, I suggest
you disable the SSH feature altogether. SHA1 is dead and IMO nobody
should trust a connection established with SHA1 kexes in order to talk
to databases.