Supported Secure Gateway (SSH) ciphers

Questions Royal TS (for Windows)
1

HI,

I am trying to connect to a RDP session through a (third party/sshd) Secure Gateway, but during connection it just says “There is no cipher supported by both: client and server (7)”. Can anyone please tell me which ciphers RoyalTS expects to be available on the gateway side? Are those ciphers somehow configurable?

I am using RoyalTS 3.3.61216 (build #61216) on Windows 7 x64.

Thanks in advance.

Malte

2

Hi,

sorry, the post ended up in the wrong forum and got overlooked.

Are you still experiencing issues with your SSH server as secure gateway?

Regards,
Stefan

3

Hi Stefan,

the problem got resolved beginning with one of the more recent version of RoyalTS (4.x; not sure which version did it). I can now successfully use sshd-based tunneling.

Regards,

Malte

4

Great to hear that and sorry for the long delay…

Please let us know if you have any further questions or issues.

Regards,
Stefan

5

Hi Stefan,

I have similar problem.

I am trying to use Secure Gateway to connect to linux machine using linux jump host.

Jump host has ssh config which only supports following key exchange algorithms:

[email protected],ecdh-sha2-nistp521,ecdh-sha2-nistp384,ecdh-sha2-nistp256

When trying to establish connection error is:

“no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 [preauth]”

According to Rebex documentation at least 2 of jump host’s algorithms should be supported.

Is there a solution which I don’t see?

Regards,

Mislav

6

Hi Mislav,

according to rebex, this is currently a bug in their components. They are already working on it and will fix it in one of the next releases.

Regards,
Stefan