If this was an existing installation and the CPU load suddenly increased
you might want to check where the queries are coming from. Not so long
ago I found what appeared to be a brute force attack on DNS server by
sending the same queries over and over from the same range of IPs in
Romania.
In message prayer.1.3.2.0909262248400.24...@hermes-1.csi.cam.ac.uk, Chris Tho
mpson writes:
Back in August there was some a thread on bind-users about messages
of the shape
validating @[hex]: [name].dlv.isc.org DS: must be secure failure
(these are category dnssec severity warning) and
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