Port 3000 · Grafana / Dev HTTP

Port 3000 is Grafana / Dev HTTP, TCP.

Grafana default port — also used by many development web servers and Node.js apps.

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-3000 protocol tcp port 3000

set rulebase security rules <rule-name> from <from-zone> to <to-zone> source any destination any application web-browsing service tcp-3000 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 :3000
• PowerShell Test-NetConnection <host> -Port 3000
• nmap nmap -p 3000 <host>

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