[lug] Virtual Hosting and DNS

[Sexton, George]

If you have 50 hosts pointing via CNAME records, and that host IP changes
then you have one entry. Otherwise, you have 50 A records to modify.

-----Original Message-----
From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]On
Behalf Of jdavis
Sent: 18 December, 2002 7:16 PM
To: lug
Subject: [lug] Virtual Hosting and DNS


Hello,
  From looking on the web

 http://marc.theaimsgroup.com/?l=bind-users&m=102608783204875&w=2

 it appears to be ok to have multiple
 A records for a IP addy ,But it looks like the common method
 of DNS setup for name-based virt web hosts is to use CNAME.

#############################################################
  i.e.
  second_domain.com CNAME first_domain.bz

  or

  second_domain.com  A   1.2.3.4

 where 1.2.3.4 is also the IP of first_domain.bz and
 first_domain.bz is the primary domain hosting all others.

#############################################################

Are there pros or cons to either way as far as HTTP and SMTP
are concerned.

 thanks,
 jd
 jd at taproot.bz




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