How to Install CSF (ConfigServer & Security Firewall) on cPanel
Abstract: How to Install Iptables on CentOS/Redhat 7 Step 1 – Install CSF Firewall First download latest source code of CSF firewall and extract on your system
ConfigServer & Security Firewall (CSF) is getting more popularity for cPanel servers security. It prevents your server from DDOS attacks. This article will help you for installing and configuring CSF firewall on cPanel servers.
First download latest source code of CSF firewall and extract on your system using following commands.
wget https://download.configserver.com/csf.tgz tar xfz csf.tgz cd csf
After extracting latest code from your system. Execute install.sh script to install CSF on your system. The installer will automatically detect for cPanel server and install required modules for it.
sh install.shStep 2 – Configure CSF Firewall
Now edit /etc/csf/csf.conf configuration file and disable TESTING mode by setting value to 「0」.
TESTING = 「0」
Let’s restart csf service
csf -r
Now you can visit to WHM interface Home » Plugins » ConfigServer Security & Firewall to access CSF graphical interface for more configuration options.
We can also manage CSF firewall using command line. For example below is some
To allow an IP. Ip will be added to /etc/csf/csf.allow
csf -a 11.22.33.44 [or] csf --add 11.22.33.44
To deny an IP. Ip will be added to /etc/csf/csf.deny
csf -d 11.22.33.44 [or] csf --deny 11.22.33.44
To search for specific IP, CIDR in iptables rules.
csf -g 11.22.33.44 [or] csf --grep 11.22.33.44
Start the firewall rules
csf -s [or] csf --start
Flush/Stop firewall rules (Note: lfd may restart csf)
csf -f [or] csf --stop
Restart CSF firewall rules
csf -r [or] csf --restart