Firewall plays an important role in the protection of the server. Firewall protects the servers against harmful stuff. Firewall controls the incoming and outgoing traffic by analyzing the packet and determine whether they are allowed through or not based on set of rules. In Linux we uses IPTABLES to manage the firewall rules. But its…
Some applications runs on a specific ports which need to be opened in the server firewall. By default csf only allow few basic ports, in order to open/allow other ports you need to edit csf configuration file. This article will you to open ports in CSF firewall. Steps to Open Ports in CSF: 1. Open…
APF(Advanced Policy Firewall) is a policy based Iptables firewall system designed for ease of use and configuration. The configuration of APF is quite simple and easy. Below are the steps to install APF firewall: 1. Change to tmp folder to download apf. cd /tmp 2. Download the apf tar file using wget. wget http://www.rfxnetworks.com/downloads/apf-current.tar.gz 3.…
APF is highly powered firewall which helps you in defining Iptable rules on your server. If you are sure to remove the APF from your system, below are the steps: Remove APF # /etc/init.d/apf stop # chkconfig apf off # rm -rf /etc/apf # rm -f /etc/rc.d/init.d/apf # rm -f /etc/logrotate.d/apf # rm -f /etc/cron.daily/apf…