# Strong CA

Strong CA is the default certificate authority (CA) for every StrongDM organization. Your organization is automatically assigned a Strong CA for RDP resources and a Strong CA for SSH resources.

Each Strong CA issues certificates that, when configured on your servers, allow them to authenticate with the trusted certificate. By using a CA managed by StrongDM, every connection is secured with a client certificate that helps to reduce the risk of lost keys being compromised.

StrongDM CA certificates for SSH have a lifespan of three years.

The SSH Strong CA and the RDP Strong CA are displayed and managed on the [Certificate Authorities](https://app.strongdm.com/app/network/certificate-authorities) page of the Admin UI.

![](/files/vWbgz9biu1oUARvReDCI)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.strongdm.com/admin/access/certificate-authorities/strong-ca.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.