Why can't non-uid 0 users have more than 1024 file descriptors when logging in via ssh?
I'm trying to allow a user to have a hard limit of 8192 file descriptors(system defaults to 1024) via the following setting in /etc/security/limits.conf: jdoe hard nofile 8192
But when jdoe logs in via ssh and does 'ulimit -Hn' he gets '1024' as a response. If he tries to set it with 'ulimit -Hn 8192' he gets an 'Operation not permitted' error. If jdoe instead telnets to the box, he gets the hard limit of 8192 file descriptors.
Here is what happens when I set the hard limit to 512 in limits.conf: jdoe hard nofile 512
When jdoe logs in via ssh, he gets a hard limit of 512 file descriptors. The same goes for telnet. So ssh is certainly reading the limits.conf file and applying the settings, so long as nofile <= 1024.
Why won't ssh allow users to have more than 1024 file descriptors???
Many thanks! -Sean