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# Add an IDOL Server to the Distributed Index Handler

After you install the DIH, you can add more IDOL servers that the DIH can distribute actions to.

To add an IDOL server to the DIH

1. Open the DIH configuration file in a text editor.
2. Find the `[DistributionIDOLServers]` section.

3. Increase the value of the `Number` parameter by one, and add an `[IDOLServerN]` subsection for the new IDOL Server. The value of `N` must be one fewer than the value of the `Number` setting.

   For example, if the following configuration is the original `[DistributionIDOLServers]` section:

       [DistributionIDOLServers]
       Number=2

       [IDOLServer0]
       Host=emerson
       Port=5502

       [IDOLServer1]
       Host=thoreau
       Port=5602

   This section defines two IDOL servers. To add a third IDOL server, make the following changes:

   - Increase `Number` to `3`.

   - Add an `[IDOLServer2]` for your new server.

   For example:

       [DistributionIDOLServers]
       Number=3

       [IDOLServer0]
       Host=emerson
       Port=5502

       [IDOLServer1]
       Host=thoreau
       Port=5602

       [IDOLServer2]
       Host=jefferson
       Port=5502

4. Save and close the configuration file.

5. Restart the DIH for your changes to take effect.

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