cname chain limit
Evan Hunt
each at isc.org
Fri Jul 9 16:55:50 UTC 2010
On Fri, Jul 09, 2010 at 03:08:20PM +0530, rams wrote:
> What is the cname chains limit ?
BIND will chase CNAME targets up to 16 times, then stop. It's a
loop-prevention method: if you have a.example.com pointing to
b.example.com which points back to a.example.com, BIND will try
16 times to find a useful target, then give up.
This has the side effect of cutting off a legitimate CNAME chain
at 17 records, but such a chain is pretty unlikely to occur in
nature.
--
Evan Hunt -- each at isc.org
Internet Systems Consortium, Inc.
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