https://linuxeries.org/tags/nftables/ Recent content in Nftables on ShieldedBytes Hugo en Sun, 07 Jun 2026 10:34:30 +0200 https://linuxeries.org/post/2026-06-07-troubleshooting-local-port-conflicts-with-ss-/ Sun, 07 Jun 2026 10:34:30 +0200 https://linuxeries.org/post/2026-06-07-troubleshooting-local-port-conflicts-with-ss-/ <h2 id="introduction-to-local-port-conflicts">Introduction to Local Port Conflicts</h2> <p>I&rsquo;ve seen this go wrong when running a multi-service Linux host - local port conflicts can be a real headache. These conflicts arise when two or more services attempt to bind to the same port, causing one or more of them to fail. To troubleshoot local port conflicts, I usually start with the <code>ss</code> command and <code>nftables</code> on a Linux system.</p> <h2 id="understanding-port-conflicts">Understanding Port Conflicts</h2> <p>A port conflict occurs when a service tries to bind to a port that is already in use by another service. This can happen when multiple services are configured to use the same port, or when a service is not properly configured to use a unique port. Don&rsquo;t bother with the traditional <code>netstat</code> command - the <code>ss</code> command is a more modern replacement.</p>