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Firewall configuration via UFW

This guide shows you how to install and enable the firewall via ufw.

Install Fail2ban

root@cloudserver:~# apt-get update && apt-get install ufw

Configure firewall

It is important that you configure the firewall rules before you enable it. Otherwise you might lock yourself out.

Configure allow rules

root@cloudserver:~# ufw allow http
root@cloudserver:~# ufw allow https
root@cloudserver:~# ufw allow ssh
root@cloudserver:~# ufw enable

Activate firewall

root@cloudserver:~# ufw enable