Important files of CSF

csf.conf    - the main configuration file, it has helpful comments explaining
          what each option does
csf.allow    - a list of IP's and CIDR addresses that should always be allowed
          through the firewall
csf.deny    - a list of IP's and CIDR addresses that should never be allowed
          through the firewall
csf.ignore    - a list of IP's and CIDR addresses that lfd should ignore and not
          not block if detected
csf.*ignore    - various ignore files that list files, users, IP's that lfd
          should ignore. See each file for their specific purpose and
         tax


'csf' commands are actually operating on these files...