Hello,

Basic commands of csf Firewall at command line.

1. Remove and unblock an IP address in /etc/csf.deny

csf -dr IP address

2. Remove an IP address from the temporary IP ban list

csf -tr IP address

3. Add an IP address to /etc/csf.deny

csf -d IP address

4. Disable csf and lfd

csf -x

5. Enable csf and lfd

csf -e

6. Restart firewall rules

csf -r