New csf v4.37

Changes:

Default setting for ICMP_OUT_RATE set to 0 – this is the recommended setting for cPanel servers which use ping times to determine fastest mirrors for various update functions
Modified PT_LOAD_ACTION code to stop duplicate load emails from being send by lfd
Moved ETH_DEVICE_SKIP to the top of the INPUT/OUTPUT chains
Allow enabling of SMTP_BLOCK and use of UID/GID advanced port filter rules on VPS Servers for as ipt_owner is now apparently supported on the latest kernels. However, if the latest kernel isn’t being used or the VPS host hasn’t included the ipt_owner iptables module for the client VPS, then csf will fail with an error