what is DNS?

okay, well, i am new to having a domain.. i haven't gotten one yet actually, but i expect to this week sometime.. anyway in the sign-up form at interserver.net, it asks for your primary and secondary DNS and i have nooo clue what that means... please help!

also, interserver.net is free domain registration and 20$ a month.. is that a good deal? or does anyone know of a better place?

thanks a lot..

 

 

 

 

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