TTL on glue records and PTR records
chubirka
chubirka at gwu.edu
Sat Aug 25 15:51:14 UTC 2001
I'm a parent zone, gwu.edu, and I've been having a discussion with one of the
admins of my delegated subdomains, va.gwu.edu, regarding a couple of issues:
1. I thought that my zone TTL only affected the glue records of the delegated
subdomain, NOT the entire zone. Doesn't the SOA information in the zone file
of the delegated subdomain set the TTL for all records in the subdomain?
2. He has multiple "A" record names pointing to the same IP addresses for his
nameservers, but his "PTR" records (of course)only indicate ONE "A" record or
canonical name. He initially wanted me to use the names which DON'T coordinate
with the "PTR" records and this was seen as an error by various error checking
programs, so I reverted to the canonical names which had the coordinating
"PTR" records. He seems to think this is unimportant, but I prefer to avoid
this kind of error whenever possible (The entire subnet where the nameservers
reside is also delegated to this administrator).
Any comments or thoughts?
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