How to Start CSF firewall rules on linux server

root@localhost[~]$ csf -s

How to Stop/Flush CSF firewall rules on linux server

root@localhost[~]$ csf -f

How to Restart CSF firewall rules on linux server

root@localhost[~]$ csf -r

How to Quick restart CSF firewall on linux server

root@localhost[~]$ csf -q

How to Disable csf firewall and lfd on linux server

root@localhost[~]$ csf -x

How to Enable csf firewall and lfd if previously disabled on linux server

root@localhost[~]$ csf -e

How to Show csf firewall version on linux server

root@localhost[~]$ csf -v