New EXPERIMENTAL feature on cPanel servers: MESSENGERV2. This uses the Apache http daemon to provide the web service for MESSENGER HTML and HTTPS
Added new option LF_APACHE_401 that works in a similar way to LF_APACHE_404 and LF_APACHE_403
Added new option RECAPTCHA_ALERT. This will send an email when a recaptcha unblock request is attempted by lfd. This option is enabled by default
Stability improvements to UI, MESSENGER and CLUSTER daemon processes
Added memory usage information to lfd log when using MESSENGER_HTTPS
Add limiter to enforce MESSENGER_CHILDREN when connections are waiting for a child process
Modify MESSENGER HTML examples for new installs to use inline images to improve page load speed and reduce lfd overheads
Modified network interface detection to allow dash (-) in name
URL updates in Server Check
Increased the default value for MESSENGER_RATE to 100/s (from 30/m) and MESSENGER_BURST to 150 (from 5) for all installations to alleviate slow MESSENGER response times
Set the SELinux security context for systemd and executable files
Added new option DROP_OUT which is set to “REJECT” by default. This option sets the default target for blocked outgoing ports. See csf.conf for more information
Added improved detection of xtables lock and recommend enabling WAITLOCK on error
Improved csf down detection when xtables lock in effect and WAITLOCK is not enabled
Added cpanel.allow and cpanel.ignore Include files for the cPanel authentication servers. These are included on new installations and added to existing files on cPanel installations
If running cPanel 1:1 NAT, use the contents of /var/cpanel/cpnat to whitelist/ignore the external IP addresses