class kerberos {
  
  case $operatingsystem {
    centos, redhat: {
      $package_name = 'krb5-workstation'
      $package2_name = 'pam_krb5'
      $config_name    = '/etc/krb5.conf'
    }
    debian, ubuntu: {
      $package_name = 'unknown'
      $package2_name = 'unknown'
      $config_name    = '/etc/krb5.conf'
    }
    Solaris: {
      $package_name = 'service/security/kerberos-5'
      $package2_name = undef
      $config_name    = '/etc/krb5/krb5.conf'
    }
  }