Purpose Of The Port Scan Tool
The Hub Port Scan tool checks a bounded list of common Direct Connect ports on a public target. It is designed for operators who need to confirm whether NMDC, NMDCS, ADC, or ADCS ports appear reachable from the hublist server.
Scope And Safety
This is not a general vulnerability scanner. It checks hub-related TCP ports only, blocks private and reserved networks, caps timeouts, and does not run shell commands from user input.
Reading The Results
- Open: The TCP port accepted a connection. Use Protocol Test to confirm the hub protocol speaks correctly.
- Closed: The host replied but the service is not listening.
- Timed Out: A firewall, NAT rule, provider filter, or offline host may be dropping packets.
- TLS Mismatch: A port can be open but not configured for the secure protocol you expected.
Common Errors
If all ports time out, check DNS, firewall rules, VPS security groups, router port forwarding, and whether the hub process is running. If only secure ports fail, inspect TLS certificate and hub secure-listener configuration.