Reverse dns des not reach my IP

Niall O'Reilly Niall.oReilly at ucd.ie
Sat Apr 21 09:46:59 UTC 2007


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On 21 Apr 2007, at 10:16, Andy Shellam wrote:

> 1. ask your ISP to change the reverse DNS for your IP to the domain  
> you
> require

> 2. ask them to delegate 123.123.123.in-addr.arpa to your DNS servers
> (which unless you own the entire 123.123.123.x range, it's unlikely
> they'll do.)

	"Unlikely" is an understatement!  8-)

	If they know what they're at, they have to refuse unless OP
	owns the entire /24 block, due to likely impact on other
	"residents" in the block.

> I'm not sure if you can delegate a single record.

	You can.  See RFC2317.

> Option 1 is by far the easiest.

	Probably not if OP expects to need to do updates from time to time.


	Best regards,

	Niall O'Reilly
	University College Dublin IT Services

	PGP key ID: AE995ED9 (see www.pgp.net)
	Fingerprint: 23DC C6DE 8874 2432 2BE0 3905 7987 E48D AE99 5ED9



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