Created: 2026/07/02 19:41:27 America/Chicago
By: admin
Modified: 2026/07/17 08:40:53 America/Chicago
By: admin

What This Tool Checks

The hub port scan tool performs a small, bounded TCP connection check against public targets only. It is designed for hub owners who need to verify common Direct Connect ports from the hublist server.

When To Use It

Use it when a hub is listed but clients cannot connect, when router forwarding changed, or when you need to compare protocol ports.

Why It Helps Hub Owners

A public hub can resolve in DNS and still be unreachable if a firewall, NAT rule, VPS security group, or hub service blocks the port.

What To Check

  • This is not a full vulnerability scanner; it checks a limited set of hub-related ports.
  • Private and reserved networks are blocked for safety.
  • Protocol mismatch matters because NMDC, NMDCS, ADC, and ADCS may use different ports.

Hub Port Scan Tool

Open Help

Run a small bounded TCP connection check against public hub ports to see which common Direct Connect ports appear open.

Enter a public hostname, IP address, or hub-style address such as dchub://example.com:411.
Optional comma-separated ports. Leave empty for common DC hub ports. Maximum 20 ports.

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

Related Hub Tools

Add Your DC Hub To The Public DC++ Hublist

Submit a public Direct Connect hub for hourly checks, searchable indexing, and inclusion in the public NMDC, NMDCS, ADC, and ADCS hublist files.

Hub Ping Tool

Test whether a public DC++ or Direct Connect hub hostname responds to ICMP ping, then review packet loss, latency, and DNS resolution.

Hub WHOIS Tool

Look up public WHOIS, registrar, domain, and network ownership information for Direct Connect hub hostnames and IP addresses.

Hub DNS Dig Tool

Run dig-style DNS checks for Direct Connect hub hostnames and inspect A, AAAA, CNAME, MX, NS, SOA, and TXT records.

Hub DNS Overview Tool

Review A, AAAA, CNAME, MX, NS, SOA, and TXT records for public Direct Connect hub hostnames from the hublist server.

Hub Reverse DNS Tool

Check reverse DNS PTR hostnames for public IP addresses used by Direct Connect and DC++ hubs.

Hub TCP Connect Tool

Test whether a specific public Direct Connect TCP port accepts connections from the hublist server for NMDC, NMDCS, ADC, and ADCS hubs.

DC++ Active Mode Check

Check whether your DC++ client listening port appears reachable from the public internet for active mode.

Hub Protocol Test Tool

Test whether a public DC++ hub endpoint accepts dchub, NMDC, NMDCS, ADC, or ADCS connections from the hublist server.

Hub TLS Certificate Tool

Inspect public TLS certificate details for secure Direct Connect endpoints, NMDCS hubs, ADCS hubs, or related hostnames.

Hub Traceroute Tool

Trace the network path from the hublist server to a public Direct Connect hub hostname or IP address for routing diagnostics.