This guide will help you to understand how to install a firewall on a VPS. A firewall is a type of network security device that regulates a server’s traffic on a network. A firewall should be installed on all servers that are connected to the internet.
Follow the steps to install a Firewall on a VPS:
- Download CSF by going to usr/src. Use the commands given below:
cd /usr/src/
wget https://download.configserver.com/csf.tgz
The most recent version of CSF will be downloaded by your VPS automatically and put in the /usr/src/ directory. - Abstract the CSF file. Use the following command to extract all the files in the csf.tgz file:
tar xzf csf.tgz - Run the installer after going to the CSF directory. Use the command given below to run this to start the CSF installer:
cd csf
sh install.sh
a) It will first verify that all requirements are met before installing the application. You might need to first install Perl and libwww if it encounters a major error.
b) These should be present by default on all supported Linux distributions, but in case they are not, you will need to execute the following commands:
yum install perl-libwww-perl – for RHEL-based distributions
apt install libwww-perl – for distributions based on Debian - Disable any current firewalls and configure CSF
a) If your computer is currently running any extra firewall programmes, you may need to use a systemctl command to turn them off.
b) If you use one of the supported web hosting control panels, you can enable and manage the firewall from /etc/csf/csf.conf, where CSF is configured.
This way, you can install a Firewall on a VPS. For more support do contact our support specialists at earliest.
