Port 5432 · PostgreSQL

Port 5432 is PostgreSQL, TCP.

PostgreSQL relational database server default port. Restrict access with listen_addresses and pg_hba.conf, and keep it off the internet.

Palo Alto

Create the service object for this port, then allow the App-ID on it. Restricting the rule to the port's service object keeps the rule working on a non-default port and stops the App-ID matching on other ports. Replace the placeholders with your own rule name and zones.

set service tcp-5432 protocol tcp port 5432

set rulebase security rules <rule-name> from <from-zone> to <to-zone> source any destination any application postgresql service tcp-5432 action allow

Risk and exposure

Rated medium risk. Restrict this port to the sources that need it and keep the service patched; avoid exposing it to the whole internet unless the service is meant to be public.

Check it

• Linux ss -tlnp | grep :5432
• PowerShell Test-NetConnection <host> -Port 5432
• nmap nmap -p 5432 <host>

Related ports

• 3306 MySQL / MariaDB

← Search all ports