ubun2

Got a spare linux desktop box and thinking of using it as my own local dns server. how to install dns in ubuntu desktop 9.04? thanks in advance

Windows has a /flushdns switch to ipconfig command to flush or clear local dns. Is there a similar command or program to clean out the local dns cache?

I have installed Virtualmin 3.703.gpl module in my Webmin 1.480 panel of my Ubuntu 9.04 HyperVM VPS . Now I have added 1 domain named web2dziner.com using Virtualmin virtual hosts. The problem is when I type http://web2dziner.com (wrong Apache default page ) and http://www.web2dziner.com (the desired page) , it goes to two different webpages. I haven't done any modifications as such directly to the Apache. How to fix it ?

Windows local dns hosts file is found at c:\windows\system32\drivers\etc. Is there a similar hosts file in ubuntu / linux and where to find the same?