How to control ciphers used by SSL?

[Liam Proven]

On Wed, 22 Jan 2020 at 16:45, stan <stanb at panix.com> wrote:
>
> We are in the process of upgrading a machine that is quite old. One of the
> major tasks performed by this machine is supporting a fair number of
> MikroTi's.

Typo?

Do you mean MikroTik  routers?


> This is done by connecting to these devices using a perl module
> MikroTik::API . When we run the perl script on the newer (18.04) machine,
> it fails to connect. We believe this is because the ciphers available on
> the devices are not being used by the newer openssl layer.
>
> Does this make sense?
>
> If so, how can we add the older ciphers to the list that the SSL layer
> offers from the Ubuntu machine.
>
> FYI, this is on an internal network, so we are not overly concerned about
> the use of older ciphers.
>
> This is done by connecting to a specific port on the devices, not the ssh
> or https ports.

You might need to be a bit more specific.

It works from older versions, you say? But not on 18.04. So, on what
older versions does it work? Then you need to isolate what versions of
openssh work and what don't

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