Protecting DNS entries from duplicate hostnames entering network

Posted by Aszurom on Server Fault See other posts from Server Fault or by Aszurom
Published on 2010-05-10T17:37:54Z Indexed on 2010/05/10 17:44 UTC
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dns

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hostname

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security

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Windows

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best-practices

Given a Windows domain, with DNS provided by a server on that domain, I am curious about what happens if a guest joins the network attempting to use the same hostname as an existing server, and then tries to register that hostname in DNS with its DHCP address. Can this potentially be disruptive to the server, or is Windows DNS smart enough to spot a duplicate hostname and deny an auto-register request from that host? What actions can be taken to ensure that DNS for a hostname cannot be altered?

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