Konstantin Rudoy wrote:

>OK. It works!!!
>
>I had to leave Host empty and set Domain as k.rudoy.com
>And wait for some time after Apply. But do not restart.
>
>Thank's to both of you.
>  
>
I suppose that's one way to do it, and if it's working for you then by 
all means go with it, but it should work using k in the host field.  
Technically, that's the right way to do it.  I would venture to guess 
that doing it that way with an added reboot for good measure would 
probably solve it.