https://crackedngineer.github.io/homelab-infrastructure/tags/homelab/Recent content in Homelab on crackedngineer's homelabHugoenThu, 23 Apr 2026 00:00:00 +0000https://crackedngineer.github.io/homelab-infrastructure/posts/postgresql-proxmox-lxc-connection-guide/Thu, 23 Apr 2026 00:00:00 +0000https://crackedngineer.github.io/homelab-infrastructure/posts/postgresql-proxmox-lxc-connection-guide/<p>I used the <a href="https://community-scripts.org/" class="external-link" target="_blank" rel="noopener">Proxmox helper script</a> to spin up a PostgreSQL LXC — quick, clean, works great. But when I tried to connect from <strong>whoDB</strong> (a web-based DB browser I run on the same network) and even from <code>psql</code> on another machine, I got nothing. Connection refused. No useful error.</p> <p>Spent more time than I&rsquo;d like to admit on this. The fix turned out to be one line.</p> <hr> <h2 id="why-it-happens"> Why It Happens <a class="heading-link" href="#why-it-happens"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>PostgreSQL locks down remote access by default. Even if the port is open and the service is running, the database won&rsquo;t accept connections from outside the container unless you explicitly allow them in <code>pg_hba.conf</code> — the Host-Based Authentication config file.</p>