nanog mailing list archives
Re: Performance Issues - PTR Records
From: Leigh Porter <leigh.porter () ukbroadband com>
Date: Mon, 7 Nov 2011 13:52:46 +0000
On 7 Nov 2011, at 13:48, "sthaug () nethelp no" <sthaug () nethelp no> wrote:
The practice of filling out the reverse zone with fake PTR record started before there was wide spread support for UPDATE/DNS. There isn't any need for this to be done anymore. Machines are capable of adding records for themselves.How do I setup this for DHCPv6-PD? Say, I delegate 2001:db8:42::/48 to the end user. Should I delegate reverse DNS as well? If so, to whom? Or is it the CPEs responibility to dynamically add records for whatever addresses it sees on the internal LAN(s)? Are there CPEs capable of doing this? Or will the end systems themselves do the update against my DNS server? If so, how do I authenticate that?With my ISP hat on, I find the idea of customer CPEs updating their own PTR records to be completely unacceptable. So I guess I'll either live without the reverse DNS, or use a name server that can synthesize answers on the fly. Steinar Haug, Nethelp consulting, sthaug () nethelp no
Indeed, there is no way I would allow that either. But really, providing a reverse zone and forward zone to match is a case of five minutes and a shell script or a DNS that as Steinar said, will synthesise results. It's really not all that difficult.. -- Leigh Porter ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
Current thread:
- Re: Performance Issues - PTR Records, (continued)
- Re: Performance Issues - PTR Records Robert Bonomi (Nov 06)
- Re: Performance Issues - PTR Records Chris Adams (Nov 06)
- Re: Performance Issues - PTR Records Tom Lanyon (Nov 06)
- Re: Performance Issues - PTR Records Robert Bonomi (Nov 06)
- Re: Performance Issues - PTR Records Valdis . Kletnieks (Nov 06)
- Re: Performance Issues - PTR Records Jimmy Hess (Nov 07)
- Re: Performance Issues - PTR Records Mark Andrews (Nov 06)
- Re: Performance Issues - PTR Records Brett Watson (Nov 06)
- Re: Performance Issues - PTR Records Bjørn Mork (Nov 06)
- Re: Performance Issues - PTR Records sthaug (Nov 07)
- Re: Performance Issues - PTR Records Leigh Porter (Nov 07)
- Re: Performance Issues - PTR Records Bjørn Mork (Nov 07)
- Re: Performance Issues - PTR Records Leigh Porter (Nov 07)
- Re: Performance Issues - PTR Records Seth Mos (Nov 08)
- Re: Performance Issues - PTR Records Mark Andrews (Nov 08)
- Re: Performance Issues - PTR Records bmanning (Nov 08)
- Re: Performance Issues - PTR Records Jeroen Massar (Nov 08)
- Re: Performance Issues - PTR Records Mark Andrews (Nov 08)
- Re: Performance Issues - PTR Records Jeroen Massar (Nov 08)
- RE: Performance Issues - PTR Records Leo Vegoda (Nov 09)
- Re: Performance Issues - PTR Records Mark Andrews (Nov 09)