Date: Sat, 15 Sep 2001 01:26:20 +0200 From: Cliff Sarginson <cliff@raggedclown.net> To: freebsd-questions@freebsd.org Subject: Re: Reverse DNS Delegation Message-ID: <20010915012620.A13503@raggedclown.net> In-Reply-To: <002c01c13d60$54a55280$0200a8c0@networld>; from russell_k@acedsl.com on Fri, Sep 14, 2001 at 05:00:43PM -0400 References: <002c01c13d60$54a55280$0200a8c0@networld>
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On Fri, Sep 14, 2001 at 05:00:43PM -0400, Russell A. Khurshudian wrote: > May someone please explain Reverse DNS and it's uses. Also, say i want to get Reverse DNS delegation from my ISP, what information do i need to provide them with? Thank you. In short... When you use a DNS and give it a name to find it tries to find the IP address. For a reverse lookup it is well..in reverse..you give DNS an IP address and you get a domain name back. This is used by network servers to try and ensure the host trying to connect is really who it says it is. If your ISP is of anyworth whatsoever, and they host your domain then they don't need to know anything from you. It is a standard part of any DNS domain configuration. Here is an example (it uses my local DNS and these are my local hosts.) I use "nslookup" to interrogate my DNS. First a "normal" lookup... -------------------------- nslookup buffy.raggedclown.intra Server: localhost Address: 127.0.0.1 Name: buffy.raggedclown.intra Address: 192.168.1.2 Now a reverse lookup... ----------------------- nslookup 192.168.1.2 Server: localhost Address: 127.0.0.1 Name: buffy.raggedclown.intra Address: 192.168.1.2 I hope that explains it a bit... -- Regards Cliff To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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