Here is what I mean...
This does not work ------ [EMAIL PROTECTED] ~# ssh [EMAIL PROTECTED] [EMAIL PROTECTED]'s password: UCSD Physics Server Unauthorized Access is Prohibited
[EMAIL PROTECTED] ~$ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 7168 virtual memory (kbytes, -v) unlimited [EMAIL PROTECTED] ~$ ulimit -n 4096 -bash: ulimit: open files: cannot modify limit: Operation not permitted [EMAIL PROTECTED] ~$ -------
This does work ------- [EMAIL PROTECTED] ~# su - tmartin [EMAIL PROTECTED] ~$ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 4096 pipe size (512 bytes, -p) 8 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 7168 virtual memory (kbytes, -v) unlimited [EMAIL PROTECTED] ~$ ulimit -n 4096 [EMAIL PROTECTED] ~$ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 4096 pipe size (512 bytes, -p) 8 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 7168 virtual memory (kbytes, -v) unlimited -------
Here is my /etc/security/limits.conf
...stuff removed for brevity... #ftp hard nproc 0 [EMAIL PROTECTED] - maxlogins 4 * hard nofile 4096 * soft nofile 4096 ...stuff removed for brevity...
Here is my /etc/pam.d/sshd file #%PAM-1.0 auth required pam_stack.so service=system-auth auth required pam_nologin.so account required pam_stack.so service=system-auth password required pam_stack.so service=system-auth session required pam_stack.so service=system-auth session required pam_limits.so session optional pam_console.so
I have tried this on both a redhat 8 and 9 box. Why does one work and the other not??? I want users to be able to specify the number of max open files they can have from remote (within reason). I also want them to log in via ssh.
Is there something else I need to set? Is it the remote login or is it sshd?
Thanks for any insight
Terrence Martin UCSD Physics
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