reverse dns for IPV6 ranges

hugo hugoo hugobxl at
Mon Mar 12 21:12:44 UTC 2012


Has anyone else experience with reverse IPV6 configuration with Bind?



> From: spainj at
> To: hugobxl at
> CC: bind-users at
> Subject: RE: reverse dns for IPV6 ranges
> Date: Tue, 6 Mar 2012 03:09:42 +0000
> > But if only some IP have e reverse..what about the other server who have received an IP in the range? Ip that can be changed every x hours.
> > IF no reverse, it can be blacklisted for some reasons or having some problems with services asking a reverse dns resolution.
> In my zone, all of the entries are for servers whose IPv6 addresses never change. If you are going to register PTR records for clients with changeable IPv6 addresses, then you need a dynamic update mechanism. Mark Andrews made a recommendation earlier in this regard. I don't think there is any reason to have PTR records that have no corresponding AAAA records in the forward lookup zone. That would be computationally infeasible anyway. Jeff.
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