---
title: Manage OPC UA Certificates
slug: litmusedge-v1/product-features/opc-ua-server/connections/manage-opc-ua-certificates
description: Learn how to manage OPC UA certificates. 
docTags: 
createdAt: 2022-09-26T17:15:49.000Z
---

You can manage your OPC UA Client Certificates by navigating to **OPC **>** Certificates**. 

# Refresh Settings

You can click the **Show settings** icon to manage the refresh settings. 

![](https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/EatDAj_LZaurVe_Cx1-b8_image.png "Certificate refresh settings icon")

- **Auto-Refresh**: Enable or disable auto-refresh of client certificates. Auto-refresh is enabled by default. 
- **Refresh connections:** Refresh the OPC UA client connections. 

# Manage OPC UA Certificates

You can click the **Action menu** for client certificates you've added to manage them. 

- **Trust**: You can trust the client certificate
- **Remove**: The client certificate is removed from the list. 

You can click the** Action menu** for all client certificates to remove all certificates from the list. 

![](https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/vBjQA0L91cy1N1QtFJmVB_image.png)