$host=host.1:host.2 $host_address=
LOG: MAIN
*> userx@t1 R=r1 T=t1 H=host.1:host.2
$host=127.0.0.1 $host_address=127.0.0.1
LOG: MAIN
$host=host.1:host.2 $host_address=
LOG: MAIN
*> userx@t1 R=r1 T=t1 H=host.1:host.2
$host=127.0.0.1 $host_address=127.0.0.1
LOG: MAIN