As i'm new to Ubuntu server, my guess is that this isn't a really `smart` question, but I'm a bit confused. I've set up a webserver with LAMP on my old computer and I'm able to access it trough my external IP address all over the world. As I used to host my website on just another webhosting company I bought a domainname over there. But now I want to assign the domainname to my personal webserver, but I'm totally confused how to go there. I've read articles on DNS etcetera, making me think that I should run my own DNS server or...? I have no clue actually, I would be very thankfull if somebody could help me out!