RHEL 8.6 Server Cannot ssh into the server without upgrading openssh-server
Hi, I am a new user of RHEL.
I found that I cannot log into my RHEL 8.6 server without upgrading the SSH server on it. Of course, I tried to restart sshd and do other things, but all failed. But after upgrading the openssh-server package using dnf, it works again.
I wonder whether it is designed so? How can I know when I should upgrade some basic packages?
Responses
Guru
34035 points
Hi Zheng,
Best practice is to upgrade all packages on a regular basis generally ... You are using an older version of RHEL (8.6).
The latest stable release is 8.7 - so it's recommended to run sudo dnf upgrade --refresh as soon as possible. :)
Regards,
Christian
Guru
34035 points
Hi Zheng,
Most probably that won't be the case ... What works on RHEL 8.6 will work on RHEL 8.7 as well. We talk about a
minor point release. Your concerns would be more relevant if you would upgrade to the major edition RHEL 9. :)
Regards,
Christian
Guru
34035 points
Hi Zheng,
Don't know what exactly caused this, but it could have to to do with a security update that
hasn't been applied. Please bare in mind that the system is unsafe to use. There's a reason
why it's generally recommended to keep all systems updated to the latest stable version. :)
Regards,
Christian
Have you checked permission before and after the upgrade? Not having the .ssh directory set to 700 can cause issues like this.
I have updated many systems from 8.0, 8.1 etc etc (many now on 8.7) and never had an issue with ssh.