I like to install Oracle on my linux box. One thing I need to do is
$ulimit -n 65438
-bash: ulimit: open files: cannot modify limit: Operation not
According to metalike 261220.1, I need to set
UsePrivilegeSeparation no
in /etc/ssh/sshd_config.

That solve the problem. But what bothers me is, every time after
reboot, "UsePrivilegeSeparation no" does not take effect
automatically. I will have to kill the sshd, and restart the sshd
before I can execute ulimit , how can I fix it?

Thanks very much for your help.