For years on my small network I've used MacDNS on a vintage Mac to
provide a basic private DNS behind NAT. Yes I know it's old and a bit
flaky, but it wasn't broken enough to demand fixing.
Until now. Changing two client machines from Mac OS X 10.4.3 to 10.4.4
has broken MacDNS. It grumbles about malformed enquiries before
crashing with a System Error of Type 2, which I think means a memory
alignment error. I infer that some enquiry that 10.4.4 sends out is
confusing the old MacDNS and causing it to try to process misaligned
data. This seems very odd.
As soon as I can, I'll roll out a BIND daemon on one of my boxes to
take on the DNS job. But it's still a bit disconcerting to find this
apparent mismatch between old and new. I wonder if Tiger 10.4.4 is
genuinely sending out wonky packets, which might cause problems with
other kinds of name service as well?
GWW
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