> Rocket.Chat is an open-source fully customizable communications platform developed in JavaScript for organizations with high standards of data protection. It is licensed under the MIT License with some other licenses mixed in. See [Rocket.chat GitHub](https://github.com/RocketChat/Rocket.Chat/blob/develop/LICENSE) for licensing information.
This is based on authentik 2022.3.1 and Rocket.chat 4.5.1 using the [Docker-Compose install](https://docs.rocket.chat/quick-start/installing-and-updating/rapid-deployment-methods/docker-and-docker-compose/docker-containers). Instructions may differ between versions.
:::
## Preparation
The following placeholders will be used:
-`rocket.company` is the FQDN of Rocket.chat.
-`authentik.company` is the FQDN of authentik.
### Step 1
In authentik, under _Providers_, create an _OAuth2/OpenID Provider_ with these settings:
:::note
Only settings that have been modified from default have been listed.
:::
**Protocol Settings**
- Name: RocketChat
- Client ID: Copy and Save this for Later
- Client Secret: Copy and Save this for later
- Redirect URIs/Origins:
```
https://rocket.company/_oauth/authentik
```
### Step 2
In authentik, under _Applications_, create a new application with these settings:
**Application Settings**
- Name: Rocket.chat
- Slug: rocketchat
- Provider: RocketChat
- Launch URL:
```
https://rocket.company/_oauth/authentik
```
### Step 3
:::note
Only settings that have been modified from default have been listed.
You may have different settings for some of the group and role mapping for advanced configurations. The settings below are the base settings to connect authentik and Rocket.chat.
:::
In Rocket.chat, follow the procedure below:
1. Log in as a System Administrator, click on your avatar, and choose _Administration_
2. Scroll down and click on _OAuth_
3. In the top right corner, click _Add custom oauth_
5. Scroll down to the new OAuth application, expand the dropdown, and enter the following settings:
- Enable: Turn the radio button to the _on_ position
- URL: https://authentik.company/application/o
- Token Path: /token/
- Token Sent Via: Payload
- Identity Token Sent Via: Same as "Token Sent Via"
- Identity Path: /userinfo/
- Authorize Path: /authorize/
- Scope: email profile openid
- Param Name for access token: access_token
- Id: _THIS IS THE CLIENT ID YOU COPIED FROM STEP 1 in authentik_
- Secret: _THIS IS THE CLIENT SECRET YOU COPIED FROM STEP 1 in authentik_
- Login Style: Redirect
- Button Text: _Fill in with what you want the SSO button to say_
- Button Text Color: _Hex Color for Text on the SSO login button_
- Button Color: _Hex Color for the SSO login button_
- Key Field: Username
- Username field: preferred_username
- Email field: email
- Name field: name
- Roles/Groups field name: groups
- Roles/Groups field for channel mapping: groups
- User Data Group Map: rocket.cat
- Merge users: Turn the radio button to the _on_ position
- Show Button on Login Page: Turn the radio button to the _on_ position
6. Click _Save changes_ in the top right corner of the screen
### Step 4 (Optional)
:::note
By default, Rocket.chat will attempt to use two-factor authentication with any new user coming in to the system and allows users to change their information
:::
**To disable changing user information and other options inside Rocket.chat:**
Navigate to the _Accounts_ settings to change the following:
- Allow Name Change: Off
- Allow Username Change: Off
- Allow Email Change: Off
- Allow Password Change for OAuth Users: Off
**If you are using Two Factor authentication through authentik:**
Navigate to the _Accounts_ settings, Scroll Down to Two Factor Authentication and turn off _Enable Two Factor Authentication_
**Registration Options**
Navigate to the _Accounts_ settings, Scroll Down to Registration and choose your [registration options](https://docs.rocket.chat/guides/administration/settings/account-settings#registration), such as:
