- Plesk 12.5 for Linux
Postfix fails to start. In
the following message appears:
postfix/master: fatal: socket: Too many open files
Postfix service goes down, when some mail settings are being updated in Plesk.
The maximum number of open files is exceeded
Increase maximum number of open files:
# ulimit -n 8192
To increase it these limits permanently:
add the following lines in
# End of fileline:
# tail -n4 /etc/security/limits.conf
* soft nofile 8192
* hard nofile 8192
# End of file
Reboot the server to apply these changes.