[afnog] reverse dns implications

Phil Regnauld regnauld at x0.dk
Wed Apr 9 12:03:20 UTC 2008


Makan SIMAGA (msimaga) writes:
> 
> If you just have one public IP address from your ISP, and make DNS Server
> this mean that the /24 bloc which include this public address will be
> reversely resolved by your reverse DNS zone file.
> 
> The IP addresses from that  /24 bloc could be assigned to another customer
> by your ISP. If this customer make his DNS server with reverse zone, there
> will certainly have a problem with your DNS reverse resolution !
> 
> How can we do to avoid this problem?

	Looks like you want RFC2317...

	http://www.faqs.org/rfcs/rfc2317.html

	For good measure, I suggest reading this as well:

	http://tools.ietf.org/html/draft-ietf-dnsop-reverse-mapping-considerations-06

	Phil




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