红帽全球峰会1.3. Configuring an external system for Kerberos authentication
Follow this procedure to configure an external system so that Identity Management (IdM) users can log in to IdM from the external system using their Kerberos credentials.
Enabling Kerberos authentication on external systems is especially useful when your infrastructure includes multiple realms or overlapping domains. It is also useful if the system has not been enrolled into any IdM domain through ipa-client-install.
To enable Kerberos authentication to IdM from a system that is not a member of the IdM domain, define an IdM-specific Kerberos configuration file on the external system.
Prerequisites
The
krb5-workstationpackage is installed on the external system.To find out whether the package is installed, use the following CLI command:
# dnf list installed krb5-workstation Installed Packages krb5-workstation.x86_64 1.16.1-19.el8 @BaseOS
Procedure
Copy the
/etc/krb5.conffile from the IdM server to the external system. For example:# scp /etc/krb5.conf root@externalsystem.example.com:/etc/krb5_ipa.conf警告Do not overwrite the existing
krb5.conffile on the external system.On the external system, set the terminal session to use the copied IdM Kerberos configuration file:
$ export KRB5_CONFIG=/etc/krb5_ipa.confThe
KRB5_CONFIGvariable exists only temporarily until you log out. To prevent this loss, export the variable with a different file name.Copy the Kerberos configuration snippets from the
/etc/krb5.conf.d/directory to the external system.Users on the external system can now use the
kinitutility to authenticate against the IdM server.
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