# Authentication

Use the **Authentication** tab page to specify what happens if server authentication fails.

<figure><img src="https://2962129871-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FxmLmmfMLQhp2Wa84bRzF%2Fuploads%2FZRgcodKCAY5xxFrXZoT6%2Fras-authentication.png?alt=media&#x26;token=d075f240-339b-4cd1-8004-897416884ca4" alt=""><figcaption></figcaption></figure>

In the **If authentication fails** drop-down list, select one of the following options:

* **Connect**. The user can ignore the certificate of the server and still connect.
* **Warn**. The user is alerted about the certificate and still has the ability to choose whether to connect or not.
* **Do not connect**. The user is not allowed to connect.