[bind10-dev] DDNS acl then prereqs or vice versa

Evan Hunt each at isc.org
Tue Jun 5 19:11:52 UTC 2012


> Is it in the scope of the DDNS spec to say when to do ACLs at all? I
> mean, the base RFCs don't say where we should do ACLs on queries or
> transfers, do they?

I think it's implied in a few places, if not stated outright -- but in all
of them, the implication is that permission checks happen exactly when
you'd expect: first.  The UPDATE RFC is the exception; RFC 2136, section
3, is explicit about order of processing and permissions checks come after
zone and prerequisite checks.  It's always seemed like a mistake, but AFAIK
it hasn't ever been amended.

I would recommend discussing the matter with the author of RFC 2136,
who happens to be a co-worker of ours....

-- 
Evan Hunt -- each at isc.org
Internet Systems Consortium, Inc.


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