https://www.linuxhosted.com/tags/postgresql/Recent content in Postgresql on LinuxHosted.comHugo -- gohugo.ioenLinuxHosted.comMon, 02 Nov 2026 00:00:00 +0000https://www.linuxhosted.com/post/how-to-install-postgresql-ubuntu-vps-remote-access/Mon, 02 Nov 2026 00:00:00 +0000https://www.linuxhosted.com/post/how-to-install-postgresql-ubuntu-vps-remote-access/ <p>A fresh <a href="https://www.postgresql.org/">PostgreSQL</a> install on <a href="https://ubuntu.com/server">Ubuntu</a> accepts connections from the local system only. The <a href="https://www.postgresql.org/docs/current/runtime-config-connection.html"><code>listen_addresses</code> setting defaults to <code>localhost</code></a>, which allows TCP connections over the loopback interface and nothing else. On a VPS with a public IP address, that is the right state to start from.</p> <p>Opening the database to a remote application server takes four changes, in this order: a non-superuser role with a SCRAM password and its own database, a listener on the right interface, a <code>pg_hba.conf</code> rule that requires TLS from one known address, and a firewall rule for port 5432. The <code>postgres</code> superuser stays local.</p>