sneak in RR without SOA
Joseph S D Yao
jsdy at cospo.osis.gov
Mon Jun 14 18:45:55 UTC 1999
Sorry about the first one. It's Monday, and either my fingers or my
keyboard worked faster than my brain.
> 1) If I have a zone with only one single entry, that is, the zone is
> top100-jelly.com, and the only entry is
> @ IN A 11.22.33.44
>
> can I cheat and forget about the SOA record for this zone? I already
> have a fully populated jelly.com zone; in the db file, how if I sneak a
> FQDN in there like this:
> apple IN A 11.22.33.1
> top100-jelly.com. IN A 11.22.33.44
> grape IN A 11.22.33.2
No to both questions.
>
> 2) Can I have "www.pectin" as name? I remember reading in an RFC that
> periods are used as delimiters but I can't remember the RFC number. This
> gets me out of having to create a subdomain pectin.jelly.com with one
> entry - www.
absolutely.
> 3) My overzealous legal dept. has registered jelly.com, jelly.net and
> jelly.org. If they had their ways we would also have jelly.mil,
> jelly.gov and jelly.edu. My jelly.net and jelly.org zones are empty
> except for the SOA record. I want to return hosts in jelly.com for
> querries about jelly.net and jelly.org. I don't want to write 5000
> CNAME entries and keep them straight. I want to do this at the DNS
> level with one fell swoop. Can BIND8.2 accomodate this?
If you don't mind returning
> grape.jelly.com
Name: grape.jelly.com
Address: 300.300.300.300
> grape.jelly.net
Name: grape.jelly.net
Address: 300.300.300.300
> grape.jelly.org
Name: grape.jelly.org
Address: 300.300.300.300
then you can do this by having the three domains refer to the same
zone file, and have most or all of the addresses in that file be
relative instead of absolute. It depends on how far you want to go.
Reverse DNS, of course, will only refer to one.
If you insist that queries return, e.g.:
> grape.jelly.net
Name: grape.jelly.com
Address: 300.300.300.300
Aliases: grape.jelly.net
then you will HAVE to generate CNAMEs. 3000. What a boring, mindless
job. Perfect for a script in whatever your favourite scripting
language is. ;-)
--
Joe Yao jsdy at cospo.osis.gov - Joseph S. D. Yao
COSPO/OSIS Computer Support EMT-B
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