N-central Help

KBA80002: Required Ports and IP Addresses

Knowledge Base Article #:


Applicable Versions:

N-central 6.5, 6.7, 7.x, 8.x, 9.x, 10.x

Date Created/Updated:

April 27, 2011, July 1, 2015


This is a complete list of the ports that the N-central product uses. Your N-central port configuration may vary slightly due to your installation.

At a minimum, in order for us to troubleshoot and diagnose your issue, would you please ensure that incoming connections to the following are permitted:

  • 22 (SSH) is used for Remote Control sessions.
  • 80 (HTTP) UI and Agent/Probe communication
  • 443 (HTTPS) UI and Agent/Probe communication.
  • 10000 (HTTPS) is used for the Administration Console.

In addition, the following ports may be required:

  • 20/21 is used for FTP connections, particularly when configured for backups.
  • 25 (SMTP) is used for sending mail.
  • 53 is used for DNS.
  • 123 is used by the NTPDate service which keeps your server clock in sync.
  • 135,139,445 is used by Agents and Probes for WMI queries to monitor various services.
  • 1433 is used by Report Manager for the data export. It is also used by Agents/Probes to monitor Backup exec jobs.

N-able Support Staff

  • defender.n-able.com (

Mothership monitoring

  • mothership.n-able.com (
  • mothership2.n-able.com (
  • gateway6.n-able.com (

Gateway Address: which will have TCP connectivity tests against your equipment.