In the default Kerberos environment, credentials expire after a limited amount of time. For processes that can execute at arbitrary times, such as cron and at, the limited time presents a problem. This procedure describes how to configure the Kerberos environment to support delayed execution processes that require authenticated services through Kerberos. Oracle Solaris provides PAM modules, uses service keys, and uses kclient configuration options to make delayed execution with Kerberos authentication possible and more secure than alternative solutions.