my VPS with CPANEL and CSF is losing packets

Some customers have noticed that when CSF Firewall is installed and active if you try to ping the server some packets are lost, but when I disable it – results are okay. The solution for this is to increase the ICMP_IN_RATE value from 1/s to 20/s.
To do so login to your WHM go to ConfigServer Security & Firewall and there click on Firewall Configuration button and on that page locate ICMP_IN_RATE (CTRL+F can help you locate it) and then increase it’s value from 1/s to 30/s. Scroll all the way down and pres “Change” button to save the changes. Restart the firewall and test it again.

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