Classless DNS

[Barry Margolin]

In article <9p1422$o3d at pub3.rc.vix.com>,
Kendall Johnson <avalon at arn.net> wrote:
>Hello,
>
>I'm trying to learn DNS and have come across unfamiliar territory. Please
>read on if you think you can help.
>
>I have two domains on seperate subnets of the same class C network. (Subnet
>255.255.255.128) I am trying to set up primary zones and in-addr.arpa files
>using bind, but I am having problems with the configuration. does someone
>have an example configuration they might be willing to share? I have looked
>over the RFC 2317, but the examples there are a little confusing.
>Do I need to create only one in-addr.arpa file with CNAME records for both
>halves of the network or one in-addr.arpa file with CNAME records for each
>domain? Also is it possible for the local site administrators to set up
>secondary name servers for only their half of the network?

Unless you need to have different nameservers for each subnet, you don't
need to concern yourself with any of the RFC 2317 stuff.  Just put all the
PTR records in the reverse domain for the class C.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
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