On Tue, Oct 06, 2015 at 05:42:52PM +0000, Jack Tavares wrote: > Since the H root server IP address will be changing I have a question: > http://h.root-servers.org/renumber.html > > how does bind get the root servers these days? > I think the code includes a set.
There's a copy of the hints built in to named (it's in lib/dns/rootns.c). We update it periodically (most recently to add an AAAA for D root a few years ago), and will do so again when the H address changes. IIRC that change is planned for the end of this year, so the change will be included in BIND 9.9.9, 9.10.4, and 9.11.0. > Is there a provision to query a known address to get an update? When named starts up, if it's running as an iterative resolver (as opposed to a forwarder), the first thing it does is send a "priming" query to the hint servers looking for a new up-to-date NS RRset. In servers that still have the old hints, H wouldn't respond to the priming query, but all the other root servers would, and named would learn the new address for H from one of them, so H will work fine thereafter. -- Evan Hunt -- e...@isc.org Internet Systems Consortium, Inc. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
