Single Signon

 

Overview

Using single signon (SSO), Web users can authenticate once when accessing multiple WAS and Lotus Domino domains.

Web users can authenticate once to a WAS or to a Domino server. Without logging in again, Web users can access any other WAS or Domino servers in the same DNS domain. The WAS and the Domino servers share authentication information.

 

Prerequisites

• Confirm all servers are configured as part of the same DNS domain.

  For example, if the DNS domain is specified as setgetweb.com, then SSO is effective with any Domino server or WAS on a host that is part of the setgetweb.com domain. such as, blue.setgetweb.com and green.setgetweb.com.

• Confirm all servers share the same user registry.

  This registry can be either a supported LDAP directory server or, if SSO is configured between two WASs, a custom user registry. Domino servers do not support custom registries, but you can use a Domino-supported registry as a custom registry within WAS.

  Use a Domino directory (configured for LDAP access) or other LDAP directory for the user registry.

  The LDAP directory product must have WAS support. Supported products include both Domino and IBM SecureWay LDAP directory servers. Regardless of the choice to use an LDAP or a custom registry, the SSO configuration is the same. The difference is in the configuration of the registry.

• Define all users in a single LDAP directory.

  Using LDAP referrals to connect more than one directory together is not supported. Using multiple Domino directory assistance documents to access multiple directories also is not supported.

• Enable HTTP cookies in browsers.

  The authentication information that is generated by the server is transported to the browser in a cookie. The cookie is then used to propagate the user's authentication information to other servers, exempting the user from entering the authentication information for every request to a different server.

• For a Domino server:

  • Domino Release 5.0.6a for iSeries 400 or later and Domino Release 5.0.5 or later for other platforms are supported.

  • A Lotus Notes client Release 5.0.5 or later is required for configuring the Domino server for SSO.

  • You can share authentication information across multiple Domino domains.

• For WAS...

  • WAS Version 3.5 or later for all platforms is supported.

  • Use any HTTP Web server supported by WAS.

  • You can share authentication information across multiple product administrative domains.

  • Basic authentication (user ID and password) using the basic and form-login mechanisms is supported.

  • By default, WAS does a case-sensitive comparison for authorization. This comparison implies that a user who is authenticated by Domino matches the entry exactly (including the base distinguished name) in the WAS authorization table. If case sensitivity is not considered for the authorization, enable the Ignore Case property in the LDAP user registry settings.

 

See Also

Configuring single signon

 

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