# Implement Configuration Changes

When you make changes to the configuration files of one or more IDOL Servers, you can send the `DRERESET` index action to the DIH to ensure that all its child IDOL Servers implement the changes. Use the following action syntax:

    http://DIHhost:IndexPort/DRERESET?

When you send this action to the DIH instead of to an IDOL server, note:

- `DIHhost` is the IP address (or name) of the machine on which the DIH is installed. `IndexPort` is the number of the port that you use to send index actions to the DIH.
- This action resets all child IDOL servers of the DIH.

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