Purpose Of The TLS Tool
The TLS Certificate tool opens a bounded TLS handshake to a public secure endpoint and reports certificate details. It helps operators verify NMDCS and ADCS configuration before clients start rejecting secure connections.
Fields And Controls
Enter a public hostname or secure hub URL and the relevant port. Use the same hostname that users place in their DC++ client, because certificate name matching depends on the visible hostname.
Reading The Results
- Subject: The certificate identity.
- Issuer: The CA or self-signed authority.
- Valid From / Until: Certificate lifetime.
- Subject Alternative Names: Hostnames the certificate is valid for.
- Protocol/Cipher: TLS details when available.
Common Errors
Expired certificates, hostname mismatch, missing chain certificates, plaintext service on a TLS port, or TLS-only service on a plaintext port can all break secure hub access. Compare this tool with TCP Connect and Protocol Test to isolate the layer that fails.