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第 12 章 Managing Kerberos principal aliases for users, hosts, and services

When you create a new user, host, or service, a Kerberos principal in the following format is automatically added:

  • user_name@REALM
  • host/host_name@REALM
  • service_name/host_name@REALM

Administrators can enable users, hosts, or services to authenticate against Kerberos applications using an alias. This is beneficial in the following scenarios:

  • The user name changed and the user wants to log in using both the previous and new user name.
  • The user needs to log in using the email address even if the IdM Kerberos realm differs from the email domain.

Note that if you rename a user, the object keeps the aliases and the previous canonical principal name.

12.1. Adding a Kerberos principal alias
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You can associate alias names with existing Kerberos principals in an Identity Management (IdM) environment. This enhances security and simplifies authentication processes within the IdM domain.

Procedure

  • To add the alias name useralias to the account user, enter: 

    # ipa user-add-principal <user> <useralias>
--------------------------------
Added new aliases to user "user"
--------------------------------
         User login: user
    Principal alias: user@IDM.EXAMPLE.COM, useralias@IDM.EXAMPLE.COM

    To add an alias to a host or service, use the ipa host-add-principal or ipa service-add-principal command respectively instead.

    If you use an alias name to authenticate, use the -C option with the kinit command: 

    # kinit -C <useralias>
Password for <user>@IDM.EXAMPLE.COM:
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