- Plesk 12.5 for Linux
- Plesk 10.x for Linux
- Plesk 11.x for Linux
PHP update was installed by the weekly Plesk update task. After that, PHP scripts cannot manage session objects on sites that are configured to run PHP as CGI or FastCGI.
The PHP upgrade reset ownership settings and permissions on the
directory to their default values, preventing FTP users of domains from creating files in the directory. Since CGI and FastCGI PHP scripts run based on the privileges of FTP users, this causes problems for scripts that try to create session objects.
The issue has been fixed in Plesk 11.0.9 Micro-Update #42 .
Install the latest Plesk micro-updates.
As a workaround, set proper permissions and ownership on
# chmod 1733 /var/lib/php/session
# chown root:root /var/lib/php/session