title: windows computer name and DNS
body: <p>Let's say my computer name is "<code>MY_PC</code>". It will be "<code>MY_PC</code>" no matter which LAN I am currently connected to. So at home or at some open wirless access point, my computer name will be the same, right?</p>
  
  <p>How does this come into play with DNS? The way I understand it, my computer's FQDN is used for DNS lookup. How does this work exactly? </p>
  
  <p>When I connect my PC to a network, my PC sends its computer name to the nearest DNS server (usually the router, I guess) and is added to its DNS table?</p>
  
  <p>I guess what I am asking is: What role does my computer's name play in my everyday internet activities. I was a little suprised to find out, it is the same in any network, but when is my computer's name actually used? Why does it have to be the same in any network?</p>