APF (Advanced Policy Firewall) lets you easily manage your iptables rules on your Dedicated Hosting Server. When you attempt to install and configure APF you may get a message stating “Package… already installed and latest version. Nothing to do.” This is because APF is already downloaded and installed on all of our servers by default, and there is no need to install it. Since APF is already available you can run APF commands, or replace it with an alternative firewall solution.
Like servers, workstations on your network will also benefit from a firewall solution to help filter your internet traffic. Basic security configuration should include the TCP and UDP ports and outbound packet filtering.
Since APF is already installed, you can use commands to perform tasks such as blocking, allowing, or unblocking IP addresses. This is covered in our full article:
ConfigServer Firewall (CSF), is a front end to iptables and an alternative to APF. CSF is an advanced option to APF with more features. The installation and setup of CSF are covered in our full guide:
Congratulations, now you understand that APF is already installed on your dedicated hosting server, which means there is no need to install it! You can simply run APF commands, or replace APF with an alternative method for managing IP tables on your dedicated server.