Date: Sun, 4 Jun 2000 11:43:32 -0400 From: "Troy Settle" <troy@picus.com> To: "Raymundo M. Vega" <RaymundoVega@home.com>, "Doug Barton" <Doug@gorean.org> Cc: <questions@FreeBSD.ORG> Subject: RE: IP vs CNAME Message-ID: <FCEELIAEIIECDGKKJLMIAECJCAAA.troy@picus.com> In-Reply-To: <3939F639.C00CE2BF@home.com>
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** -----Original Message-----
** From: Raymundo M. Vega
**
** if this is the file for bind, then where is the address of
** webhost.isp.net
** mailhost.isp.net
**
That information would have been in the 'isp.net' zone file, which was not
shown. Use your imagination. Don't expect someone to spell out the
entire thing for the sake of an example (same reason I didn't put the SOA
in the first post).
** you are not telling bind those address...it works like magic, but
** it needs a little help from us.
Yeah.. that part was left as an excercise to the reader.
Now.. as for the Zone file that I screwed up...
@ IN SOA ns1.isp.net. hostmaster.isp.net. (
2000060401 10800 3600 3600000 86400 )
IN MX 10 mailhost.isp.net.
IN MX 20 spooler.isp.net.
IN NS ns1.isp.net.
IN NS ns2.isp.net.
@ IN A ip.address.of.webhost
www IN CNAME @
mail IN CNAME mailhost.isp.net.
This is indeed what 180 or so zones looked like on my name servers (before
my ISP was acquired). My only mistake in prior posts, was in assuming
that you could do a CNAME on the origin. Thanks Doug for setting me
straight.
Anyways, back to the originial question... it doesn't matter if you use
name-based or ip-based virtual hosts. The DNS config is equally easy for
both. Every major browser released in the last 5 years or so should
support HTTP/1.1, so it's really a non issue on that front.
With name-based virtual hosts, it's sometimes more difficult to track down
problems, and you may be generating additional problems on secure sites
(I'm told this, I don't know from personal experience).
With ip-based virtual hosts, you 'waste' ip addresses. Renumbering will
be a bigger and bigger bitch with every host you add.
-Troy
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