https://www.linuxhosted.com/tags/firewall/Recent content in Firewall on LinuxHosted.comHugo -- gohugo.ioenLinuxHosted.comSat, 30 May 2026 00:00:00 +0000https://www.linuxhosted.com/post/ufw-firewall-rules-vps/Sat, 30 May 2026 00:00:00 +0000https://www.linuxhosted.com/post/ufw-firewall-rules-vps/ <p>A firewall decides which network ports on your VPS the outside world can reach. Without one, every service you start — a database, a stray dev server, a debugging tool — is exposed to the entire internet the instant it binds to a public interface. Ubuntu ships with <strong>UFW</strong> (Uncomplicated Firewall), a friendly front end to the kernel's <code>nftables</code> backend, and configuring it well takes about five minutes. This guide sets up a sensible default-deny firewall for a public server and shows how to verify it before it ever has a chance to lock you out.</p>