Problem with users SSH access

Hello everyone,

 We identified that users access SSH does not work even if the the "Shell Access" option is enabled.

 When we access the SSH using the users account the follow error is returned:

  - su: cannot create child process: Resource temporarily unavailable

 We did several researches and the most found solution was the following:
 
   - https://access.redhat.com/solutions/22105

 However it did not result in success, moreover if we create a user manually with "adduser test" the login problem does not occur.

 Checking the log / var / log / secure we identified the following error:

  - fatal: fork of unprivileged child failed

  However, it also did not lead us to any solution.

  Could anyone help us with this issue?

Grateful

Are you using AllowUsers and/or AllowGroups in /etc/ssh/sshd_config?

I'm having the same issue myself.

This video is the solution, increases process limits and open files.

https://www.youtube.com/watch?v=w-uc6Sta9NE&ab_channel=centos-webpanel