Problem: A php Function Does not Return Correct Values

Problem

A script using the PHP functions posix_getpwuid() and posix_geteuid() sometimes (especially under heavy load) does not return requested users.

Solution

Univention is currently investigation the issue with this bug.

Option 1

Restart nscd:
systemctl restart nscd

Option 2

Create symbolic links with the EUID pointing to the users directory and skip the usage of the php functions.