Setting up a home web server, how to map my domain? [closed]

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http://serverfault.com – I want to set up a LAMP server at home. I have a domain name registered. How can I map that domain name so that when people type it, it comes to my server ? I know that I need to enter DNS in my domain name account, but how can I register that DNS server so that my domain calls it and then get redirected to my home LAMP server ? (HowTos)