You’re running mail, web, or other public servers, and you want to control your DNS server yourself. You’re tired of waiting on third-party service providers, and why should you pay them for something you can do yourself? You want the flexibility to set up your network however you please—maybe you want to own only a single public routable IP address and put all your servers behind a NAT firewall, or maybe you want to put workstations and internal servers behind NAT and put your public servers outside the firewall. However you elect to set up your network, you want control of the name services.

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