Coordinator 25.4
Coordinator Reference

# AddController

Adds a Controller to Coordinator. You can specify a Controller by using one of the following parameter combinations:

- UUID (Universal Unique ID).
- IP address and Port.
- HostName and Port. In this case you must also set ConnectByHostName to `True`.

NOTE: You can register Controllers by UUID only if you enable SSDP in your Controllers. In this case, you can use the GetControllers action to obtain the UUID of a Controller.

You cannot register Controllers by UUID if you use GSSAPI authentication.

## Example

    http://123.4.5.67:9000/action=AddController&UUID=d267cf80-063a-8030-a2de-24be0523821c

    http://123.4.5.67:9000/action=AddController&HostName=localhost&Port=41200&ConnectByHostName=True

    http://123.4.5.67:9000/action=AddController&IP=1.2.3.4&Port=41200

## Required Parameters

You must set at least one of the following parameters.

Parameter | Description
--- | ---
ConnectByHostName | Set to `True` to add the Controller by specifying host name information. This parameter is required if you set HostName.
HostName | The name of the active host on which the Controller is running. If you set HostName, you must also set Port.
IP | The IP address of the machine on which the Controller is running. If you set IP, you must also set Port.
Port | The active port on which the Controller is running. This parameter is required if you set HostName or IP.
UUID | The UUID of the Controller that you want to add.

## Optional Parameters

This action accepts the following optional parameters.

Parameter | Description | Required
--- | --- | ---
GSSServiceName | The GSSAPI service name of the Controller. |
UseSSL | Specifies whether the Controller uses SSL. |

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Coordinator 25.4

Topic Title: AddController