Protocol Test

Test one public DC++ hub endpoint with the selected Direct Connect protocol and port from the hublist server.

Purpose

The tool makes a bounded TCP or TLS connection for dchub/NMDC, NMDCS, ADC, or ADCS and records reachability, timing, resolved addresses, and an immediate banner or greeting when the service sends one.

When To Use It

  • Verify the advertised protocol after changing hub software or ports.
  • Check a plaintext-to-TLS migration.
  • Confirm an imported hub address before relying on it in a public hublist.

Reading The Results

TCP or TLS connection success is the primary result: the selected endpoint accepted the required socket. A lock, hub name, ADC greeting, or other banner is extra evidence that a Direct Connect service answered immediately.

Limitations

Some valid NMDC or ADC hubs accept a socket without returning an immediate banner, so an empty banner alone is not failure. The bounded check does not complete a full user login, bypass restrictions, or test private and reserved targets.

For protocol examples, mismatch symptoms, and next checks, open Protocol Test.

Hub Protocol Test Tool

Test whether a public hub endpoint accepts a bounded dchub, NMDC, NMDCS, ADC, or ADCS connection from the hublist server.

Enter a public hostname, IP address, or hub-style address such as dchub://example.com:411.
Choose the hub protocol to test.
Optional. Leave empty to use the common default port for the selected protocol.

Complete the CAPTCHA challenge to protect this form from automated abuse.

Parent Page