Manage OPC UA Authentication

2 min

You can configure authentication options for the OPC UA server by navigating to OPC > Management.

OPC UA server supports the following identity tokens for authentication:

Anonymous: The server does not have user information and cannot identify them.
Certificate: The server can identify users by security certificates generated by hash algorithms.
Password: The server can identify users by their password.

You can enable multiple identity types and choose authentication options for them.

Important:

Choosing security policies for identity tokens ensures that the server encrypts authentication messages.
Selections in the Authentication Management section must match the selections in the Policies section or the server will not start.

Select Security Policies

To select security policies:

Navigate to OPC > Management.
From the Management panel, refer to the Authentication management section and click the Enable toggle next to one or more identity tokens: Anonymous, Certificate, and Password.
The Authentication management section
For each enabled token section, select check boxes for authentication options.
After enabling or disabling a policy, you must restart the OPC UA Server. See Manage the OPC UA Server to learn more.