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Security Federation

ESF lets you configure more than one External Security Manager (ESM). There are various reasons for using multiple ESMs. Some organizations use one ESM to authenticate users (for example, if your Enterprise Server users are also operating system users), and another to handle resource access. Others might use one ESM to perform the initial stage of user authentication, and a second one to make additional checks (for example, to restrict which OS users can sign in to ES/MSS facilities). And in other cases, user, group, and resource definitions might simply be split among ESMs for administrative reasons.

In some cases, you want ESF to treat multiple ESMs as if they were a single security manager, at least for some purposes. This is called federation. ESF 1.14 and later has an option to enable a degree of federation, for ESM Modules that support it.

You configure federation for all of ESF (in the security configuration for an Enterprise Server or MFDS), but it's actually implemented by individual ESM Modules. Each module takes different actions depending on the federation setting.

Currently only the MLDAP ESM Module has special processing for federation, and it only applies if you have multiple LDAP ESMs in the stack. Federation currently has no effect if you have no more than one instance of the MLDAP ESM Module in your configuration.

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