A firewall is a network security system that controls the inbound and outbound traffic of a server. In other words, it is a fairly important element of server security. If we have a server that connects to the internet, it is a good idea to set up a Firewall for it.

You can set up a firewall manually on your server, by following the official documentation of your operating system or control panel. Here are some useful guides for more details:

If you have issues connecting to your server, and you have set up a firewall, you can regain access by resetting your firewall. Navigate to the VPS dashboard and click on Manage next to the desired server.

Next, open the Settings page from the sidebar:

On the Main settings tab, locate the Reset firewall configuration option and click on the Reset button:

Wait a few moments for the process to complete and try connecting again.