Ssh from centos 9 to os6850

[aviviis]

Hi
I have linux centos 9 machine and i cant connect with ssh to 6850 , if i do ssh to 6860 its work.
I have 5 os6850 and all of them the same problem .
Is someone know ? I thinks is because of the RSA or something like that .
Is there any solution for that ?

[frank]

Did you look at the ssh logs on centos to see why it's not connecting?

[aviviis]

I think there is problem with the RSA

[mod]

Hello,

If it's RSA disabled you can try
ssh -oHostKeyAlgorithms=+ssh-rsa user@legacyhost

Without logs it is too hard to understand what is the error, try with ssh -V

https://www.openssh.com/legacy.html

Regards

[aviviis]

Hi
The error i get
unable to negotiate with 10.9.72.155 port 22: no matching host key type found. Their offer: ssh-dss

[mod]

Hello,

Ok, could you try ssh -oHostKeyAlgorithms=+ssh-dss user@legacyhost