I see that RFC2181, written I think 20+ years ago, says in part
5.2. TTLs of RRs in an RRSet
Resource Records also have a time to live (TTL). It is possible for
the RRs in an RRSet to have different TTLs. No uses for this have
been found that cannot be better accomplished in other ways. This
can, however, cause partial replies (not marked "truncated") from a
caching server, where the TTLs for some but not all the RRs in the
RRSet have expired.
Consequently the use of differing TTLs in an RRSet is hereby
deprecated, the TTLs of all RRs in an RRSet must be the same.
[...]
but in the last few years, perhaps even a decade, TXT record usage has expanded
to be used for many different and unique purposes, such as domain ownership
verification and SPF data.
What is the proper avenue to request an enhancement so each TXT record can have
its own unique TTL value?
Can bind be changed to do this, or must the RFC be changed first?
Or, please give advice on how to do this today :-)
a live example for a client
dig TXT newriver.edu
;; ANSWER SECTION:
newriver.edu. 3590 IN TXT
"docusign=b8923ecb-9c2e-4ead-ac43-17c3d522fd49"
newriver.edu. 3590 IN TXT "MS=ms76391508"
I desire to have the MS= record have a TTL of say 3600, but want the docusign
record to have a TTL of 86400
... I put 3590 in there to make it easier to find it when looking at the zone
file ...
Verne
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Verne Britton, Lead Systems Programmer voice: (304) 293-5192 x230
Systems Support Group (in WV, call 1-800-253-1558)
West Virginia Network for FAX: (304) 293-5540
Educational Telecomputing [email protected]
837 Chestnut Ridge Road http://www.wvnet.edu
Morgantown, WV 26505
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