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From: James Raftery <james-iiu@now.ie>
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Subject: [IIU] IE nameserver problems
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X-Original-Date: Fri, 19 Jul 2002 14:59:18 +0100
Date: Fri, 19 Jul 2002 14:59:18 +0100
Hi,
Four of the IE nameservers are publishing out of date DNS information.
The four listed below are publishing the IE zone from last Friday.
They are six days behind reality.
192.16.202.11 NS.EU.NET.
192.93.0.4 NS2.NIC.FR.
198.133.199.102 GNS1.DOMAINREGISTRY.IE.
198.133.199.103 GNS2.DOMAINREGISTRY.IE.
The upshot of this is that correct DNS resolution for IE DNS data that
has been added or updated since last Friday is going to be
intermittant. If you're lucky your resolver will query one of the five
nameservers that are publishing an up-to-date zone. Unfortunately, five
out of nine aren't good odds.
Don't forget, if you lose the gamble your resolver is going to cache
the bad data for up to two days.
If you're a user of BIND 8 or BIND 9 you could add
blackhole {
192.16.202.11;
192.93.0.4;
198.133.199.102;
198.133.199.103;
};
to your named.conf and restart BIND to avoid query the bad nameservers.
This will prevent _any_ queries to those servers.
Putting
16.1.0.18
204.123.2.18
16.1.0.19
192.111.39.100
212.17.32.2
193.1.142.2
in /service/dnscache/root/servers/ie and restarting dnscache will
have the same result for dnscache users.
ATB,
james
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