Port 5000 · Docker Registry

Port 5000 is Docker Registry, TCP.

Docker container image registry default port. Also used by Flask dev servers and other 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-5000 protocol tcp port 5000

set rulebase security rules <rule-name> from <from-zone> to <to-zone> source any destination any application web-browsing service tcp-5000 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 :5000
• PowerShell Test-NetConnection <host> -Port 5000
• nmap nmap -p 5000 <host>

Related ports

• 3000 Grafana / Dev HTTP
• 2375 Docker Daemon (HTTP)
• 2376 Docker Daemon (TLS)
• 2377 Docker Swarm
• 4789 VXLAN

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