Ubuntu 18.04.3 LTS
Error : CSF : Enabled but Stopped Unable to start the error output :
open3: exec of /usr/sbin/ipset flush failed: No such file or directory at /usr/sbin/csf line 5408.
While search found need to install IPSET & I have installed IPSTE.
:~# sudo apt-get install ipset
Reading package lists... Done
Building dependency tree
Reading state information... Done
ipset is already the newest version (6.34-1).