How dhcpd chooses which server to send DDNS updates
john at iastate.edu
Thu May 17 18:41:29 UTC 2007
I'm wondering about the following comment in
* ultimately we want some server addresses, which are ideally the ones
* pertaining to the SOA.MNAME, but only if there is a matching NS RR.
which describes the behaviour of the res_findzonecut() function, and,
frankly, that just seems wrong to me. It also does not seem to be the
behavior of, say, the nsupdate program from ISC's bind distribution.
This makes it so a stock dhcpd, (I've modified ours), can not update
a "hidden primary master", such as:
example.iastate.edu IN SOA xx-0.iastate.edu. hostmaster.iastate.edu. (
2007051509 ; serial
36000 ; refresh (10 hours)
3600 ; retry (1 hour)
604800 ; expire (1 week)
360000 ; minimum (4 days 4 hours)
where xx-0 is the master and dns-1/dns-2 are the externally visible
Is there any chance this is might change in future versions or am I
going to be stuck making this mod from now on?
PS, it's about a 25 line change if anybody else is interested
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