"session_start(): open(/var/lib/php/session/sess_s... failed: Permission denied" After enabling Nginx reverse proxy - Plesk 11.5.30 / CentOS 6.5 - The Shell GuruThe Shell Guru

Got the following error right after I enabled Nginx reverse proxy on a Plesk box

For us it was as simple as issuing the following to fix this error:

1	chmod 1733 -R session