MarvinMC A service must run inside the guest, listen on the correct address and be allowed through the guest firewall. The panel manages public addresses and port assignments.
Step by step
- Check Overview and Ports to see whether your server uses a shared or dedicated IP.
- With a shared IP, use your assigned external ports and configure forwarding to the guest service port, such as SSH port 22.
- A dedicated IP generally permits direct access to guest services; extra forwarding can map an external port to another guest port. Guest firewall rules and specific restrictions still apply.
- Open only necessary services in the guest firewall and test the displayed address and correct port from another device.
- VM subdomains use an A record and require a dedicated IP. SRV records work only for clients that support them.
- Outbound SMTP on TCP port 25 requires an individual administrator exemption. Other email ports depend on the mail service and your configuration.
Check the result
Another device can reach the intended service, while unused ports remain closed. Graphical VNC remains available when guest networking fails.
Important
Panel VNC is authenticated and needs no public VNC port. Do not change unrelated port assignments or host networking while troubleshooting.