A misconfigured firewall is one of the fastest ways to either lock yourself out of your VPS or leave it wide open to attacks. This guide walks you through setting up a firewall using UFW or iptables on a Linux VPS, with real-world rules and common pitfalls covered.
DDoS attacks can take your server offline in minutes — and they’re more common than most people expect. This guide walks through real mitigation steps you can take right now, from basic firewall rules to network-level filtering.
UFW (Uncomplicated Firewall) is the fastest way to lock down an Ubuntu server without wrestling with raw iptables rules. This guide walks you through setup, common port rules, and the mistakes that can lock you out of your own server.
Not sure whether to use iptables or UFW on your Linux server? This guide breaks down how each firewall works, where they overlap, and which one makes sense for your setup — with real commands you can run right now.