Synology DSM

Tested Versions #

• Authelia
  • v4.35.6
• Synology DSM
  • v7.1

Before You Begin #

Common Notes #

1. The OpenID Connect 1.0 client_id parameter:
   1. This must be a unique value for every client.
   2. The value used in this guide is merely for demonstration purposes and you can theoretically use nearly any alphanumeric string.
2. The OpenID Connect 1.0 secret parameter:
   1. The value used in this guide is merely for demonstration purposes and you should absolutely not use this in production and should instead utilize the How Do I Generate Client Secrets FAQ.
   2. This string may be stored as plaintext in the Authelia configuration but this behaviour is deprecated and is not guaranteed to be supported in the future. See the Plaintext guide for more information.
3. The Configuration example for Authelia is only a portion of the required configuration and it should be used as a guide in conjunction with the standard OpenID Connect 1.0 Configuration guide.

Specific Notes #

Important Note: Synology DSM does not support automatically creating users via OpenID Connect 1.0. It is therefore recommended that you ensure Authelia and Synology DSM share a LDAP server.

Assumptions #

This example makes the following assumptions:

• Application Root URL: https://dsm.example.com/
• Authelia Root URL: https://auth.example.com
• Client ID: synology-dsm
• Client Secret: insecure_secret

Configuration #

Application #

To configure Synology DSM to utilize Authelia as an OpenID Connect 1.0 Provider:

1. Go to DSM.
2. Go to Control Panel.
3. Go To Domain/LDAP.
4. Go to SSO Client.
5. Check the Enable OpenID Connect SSO service checkbox in the OpenID Connect SSO Service section.
6. Configure the following values:
   • Profile: OIDC
   • Name: Authelia
   • Well Known URL: https://auth.example.com/.well-known/openid-configuration
   • Application ID: synology-dsm
   • Application Key: insecure_secret
   • Redirect URL: https://dsm.example.com
   • Authorisation Scope: openid profile groups email
   • Username Claim: preferred_username
7. Save the settings.

Authelia #

The following YAML configuration is an example Authelia client configuration for use with Synology DSM which will operate with the above example:

identity_providers:
  oidc:
    ## The other portions of the mandatory OpenID Connect 1.0 configuration go here.
    ## See: https://www.authelia.com/c/oidc
    clients:
      - id: synology-dsm
        description: Synology DSM
        secret: '$pbkdf2-sha512$310000$c8p78n7pUMln0jzvd4aK4Q$JNRBzwAo0ek5qKn50cFzzvE9RXV88h1wJn5KGiHrD0YKtZaR/nCb2CJPOsKaPK0hjf.9yHxzQGZziziccp6Yng'  # The digest of 'insecure_secret'.
        public: false
        authorization_policy: two_factor
        redirect_uris:
          - https://dsm.example.com
        scopes:
          - openid
          - profile
          - groups
          - email
        userinfo_signing_algorithm: none

See Also #

• Synology DSM SSO Client Documentation