Php has its own /tmp in /tmp/systemd-private-nABCDE/tmp when accessed through nginx

Question

I found strange behaviour concerning php and /tmp folder. Php uses another folder when it works with /tmp. Php 5.6.7, nginx, php-fpm.

Answer 1

If you are running multiple sites on the server then I think you'll want to leave PrivateTmp=yes so that each site remains segregated even in it's use of temp files. Could be a security issue otherwise, I'd imagine.