# HTTPS

HTTPS connection provides secure browser access to the EI Tunnel Manager interface. HTTPS also enables the Single Sign-On feature.

HTTPS connection is enabled only if the Authority link in the Identity Provider Configuration uses the same HTTPS protocol. In this case, HTTP is disabled on the Identity Provider, and you are automatically redirected to HTTPS, which enforces a secure channel for authentication.

1. Click Upload Certificate to add a .pem file.

2. Click Submit.

3. Turn on the Enable HTTPS toggle. You are automatically logged out.

4. Log in again to the EI Tunnel Manager, either with the normal login or with Single Sign-On.