---
title: Manage the OPC UA Server
slug: bhdo-v1/manage-the-opc-ua-server
createdAt: 2022-09-26T16:03:35.000Z
---

You can manage the OPC UA Server by navigating to **OPC **>** Management**. 

If you are using the Docker version of Belden Horizon Data Operations and having issues connecting to the OPC UA server, refer to [Issues Connecting to OPC UA Server](docId\:f5mpQcaGqG13n6Ie4YBGX). 

Refer to the following OPC UA Server management options. 

::Image[]{src="https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/eNm8cEY6-KYdu3FbDcX9A_manage-opcua-server.png" size="80" width="952" height="676" caption="OPC UA Server management options" position="center" showCaption="true"}

\[1] **Start and Stop OPC UA Server**: Before you start the OPC UA Server, make sure you do the following:

- Configure the OPC UA Server. Refer to the callout below for more information. 
- [Add a Node](docId\:dvqvjZw5NXk3Ogn7PmZ9U). 
- Enable at least one OPC UA policy. 
- Configure OPC UA authentication. 

After starting the OPC UA Server, you have the option of stopping it. 

\[2] **Restart OPC UA Server**: Restarting the server returns it to its original configuration. 

\[3] **Configure OPC UA Server**: To configure the OPC UA Server, enter the details for the server:

- **Host**: Enter the OPC UA host IP address. 
- **Port**: Enter the port number 4840. 
- **Allow Nodes Under Root**: If this option is selected, the OPC UA hierarchy will start under the root folder. If unselected, the OPC UA hierarchy will start under the *Objects *node.