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Ssh from centos 9 to os6850

Posted: 12 Jul 2024 09:21
by 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 ?

Re: Ssh from centos 9 to os6850

Posted: 12 Jul 2024 09:39
by frank
Did you look at the ssh logs on centos to see why it's not connecting?

Re: Ssh from centos 9 to os6850

Posted: 12 Jul 2024 10:20
by aviviis
I think there is problem with the RSA

Re: Ssh from centos 9 to os6850

Posted: 14 Jul 2024 16:53
by 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

Re: Ssh from centos 9 to os6850

Posted: 15 Jul 2024 00:18
by 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

Re: Ssh from centos 9 to os6850

Posted: 15 Jul 2024 14:01
by mod
Hello,

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