Why does "`su - <user>`" not apply `/etc/security/limits.conf` settings, but "`sudo -i -u <user>`" does?
Issue
When trying to set ulimit for a user on the system via /etc/security/limits.conf it was discovered that this did not get applied to the user when trying to "su -" to that user but that it did work when using "sudo -i -u".
Environment
- Red Hat Enterprise Linux 5.6
- s/390 architecture
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