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DNS DoS ???
- Subject: DNS DoS ???
- From: efinley.lists at gmail.com (Elliot Finley)
- Date: Fri, 29 Jul 2011 12:51:05 -0600
my DNS servers were getting slow so I blocked recursive queries for
all but my own network.
Then I was getting so many of these:
ns2 named[5056]: client 78.159.111.190#25345: query (cache)
'isc.org/ANY/IN' denied
that is was still slowing things down. I've since written a script to
watch the log and throw these into the box local firewall. If I
expire the entries after 24 hours then I accumulate about 10200 unique
IPs. If I expire after 48 hours, then it's just over 20000 unique
IPs.
Is anyone else seeing this?
Elliot
- Follow-Ups:
- DNS DoS ???
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- DNS DoS ???
- From: straterra at fuhell.com (Thomas York)
- DNS DoS ???
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- DNS DoS ???
- From: rdobbins at arbor.net (Dobbins, Roland)