New csf v4.57

Changes:

  • Improved exim configuration option detection in Server Check
  • Added Exim Configuration checks to DirectAdmin Server Check
  • Modified csftest.pl to perform a modprobe on all used iptables modules before testing
  • Added PASV port hole warning on VPS servers to the output of csf on start and to the cPanel (if using pure-ftpd) Server Check
  • Added lfd to the DirectAdmin Service Monitor
  • Added back a revised Firewall Security Level option to UI