Hub TCP Connect Tool

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 TCP connect tool attempts one bounded Direct Connect connection check from the hublist server to a public host and port.

When To Use It

Use it when ping is blocked but you need to know whether the hub service port itself is reachable from outside.

Why It Helps Hub Owners

For hublist indexing, an open TCP port is more important than ICMP ping because DC++ clients need the service port to accept connections.

What To Check

  • Try the exact port published in your hub address first.
  • Common hub ports include 411, 412, 1411, 1511, and 4111, but operators can choose custom ports.
  • A failed connection can indicate firewall filtering, NAT issues, or a stopped hub service.

Hub TCP Connect Tool

Check whether a specific public TCP port accepts a connection from the hublist server.

Enter a public hostname, IP address, or hub-style address such as dchub://example.com:411.
Enter a TCP port from 1 to 65535.

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.

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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.

 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.

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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.

 Hub Port Scan Tool

Run a bounded public TCP check against common Direct Connect hub ports and see which NMDC, NMDCS, ADC, or ADCS ports appear reachable.