[CentOS] [OT] DNS - asking for your opinion
maze at cela.pl
Thu Sep 1 17:10:59 UTC 2005
IMHO the convention is stupid (and isn't really any convention - everyone
does it differently, i've seen x.x.x.x.in-addr.arpa being CNAMEs to:
x.128-255.x.x.x.in-addr.arpa, x.128-25.x.x.x.in-addr.arpa or even
x.x.x.x.revdns.company.com or x.revdns.company.com) and the only
reason it's even there is because Bind is brain-dead. There's no need to
use anything besides normal x.x.x.x.in-addr.arpa (especially if you use
djbdns or if you're willing to put a little more work into bind).
On Thu, 1 Sep 2005, Simone wrote:
> Hi list, I first apologise because this is really off topic, but I would
> really appreciate your opinion on this.
> I have had a very hard time configuring a DNS server to answer reverse dns
> queries, and I would like to have your opinion on my provider behaviour.
> We have 3 classless subnets and asked the provider to delegate reverse dns.
> They configured their server and emailed me all was fine but i it didn't work
> for one subnet, so I mailed back and they assure their side was all perfectly
> I finally find out (spending lot of time and thanks to www.dnsstuff.com) that
> they configured 2 zones like 128/27.x.x.x.in-addr.arpa and one as
> 128-27.x.x.x.in-addr.arpa, so my server was not able to answer queries
> because I had all zones 128/27.x.x.x.in-addr.arpa.
> As said before it is my first time configuring Bind and I am sure the more
> experienced would have notice and solved it quite soon, but still I wonder
> why to use different convention (without telling us) and even if this is
> correct (red the http://rfc.net/rfc2317.html and they always use "/" not "-"
> Hope I won't be banned from the list for this email......
> Thanks for your time reading this
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