public String getAuthToLocalRules() {
    return authToLocalRules;
  }
Gets the configured auth-to-local rule set. This may be <code>null</code> if Kerberos
authentication is not enabled.

@return a string representing an auth-to-local rule set or <code>null</code> if Kerberos authentication is not enabled
ambari-server/src/main/java/org/apache/ambari/server/security/authentication/kerberos/AmbariKerberosAuthenticationProperties.java