CSF

CSF (Config Server Firewall) is an iptables management script and logging daemon.

Command Line Options

csf -h - get help for CSF command line options

csf -a IP_Address - block (add to blocklist) the specified IP address

csf -ra - Restart CSF and LFD (leave off the a to restart just CSF)

Configuration Files

CSF and LFD settings are stored in:
/etc/csf

csf.conf - main CSF configuration file

Logs

See Log Locations

References

1. ref here...