[H-GEN] problems with accessing mail at bigpond
robert at timetraveller.org
Sat May 4 06:10:00 EDT 2002
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On Sat, 4 May 2002, Greg Black wrote:
> Of these, the first two are correctly configured not to answer
> queries from just anywhere and so won't help you unless you are
> on the network(s) they answer for. The latter two will answer
> random queries from anywhere about anything at this time (which
> is quite silly) and so they do in fact give correct answers for
Personally I don't have a problem with open dns servers (ie server which
will answer queries from any remote host). I see it as one last thing we
haven't had to tighten up on the net because someone found a way of
abusing the trust of others (all mail relays used to be open not so long
ago...). I block AXFR from anywhere except slaves of course.
I certainly find having remote dns servers ready to answer queries useful
for diagnostics (there is always samspade I suppose). I can only think of
a handful of dns servers that are not open (UQ being a notably example).
I'd be interested in any security issues relating directly to having
a dns server which will answer queries from any host.
-- Robert Brockway B.Sc. email: robert at timetraveller.org ICQ: 104781119
Linux counter project ID #16440 (http://counter.li.org)
blake: up 114 days, 11:23, 4 users, load average: 1.32, 1.10, 1.03
"The earth is but one country and mankind its citizens" -Baha'u'llah
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