CSF with LFD is at the following location:
ConfigServer Security & Firewall
The steps to install on a cPanel machine are these:
Code:
wget http://configserver.com/free/csf.tgz
tar -xzf csf.tgz
cd csf
./install.cpanel.sh
After that, log into WHM and at the bottom in Plugins area you will see ConfigServer Security&Firewall. You can start the firewall there. Ensure to take it out of testing mode after you've gotten it setup as you prefer, which is done in WHM > Plugins > ConfigServer Security&Firewall > Firewall configuration area. In that section, you'll see the following:
Change the 1 to a 0 once you've determined you have the right ports enabled (since you used the cPanel installation script, it should have the common cPanel ports opened). Then click the "Change" button at the bottom and restart the firewall or start it.
If you have questions after this on anything for CSF and LFD, please ensure to post them on their forum:
CSF Forum