Monitor DNS queries toward Root severs
Stephane Bortzmeyer
bortzmeyer at nic.fr
Wed May 4 14:10:36 UTC 2016
On Wed, May 04, 2016 at 07:03:13PM +1000,
Mark Andrews <marka at isc.org> wrote
a message of 15 lines which said:
> fill in with the rest of the root servers names.
And if you don't like to type, or if you use another root:
sudo tcpdump -n -i ${INTERFACE} port 53 and \( $(for ns in $(dig +nodnssec +short NS .); do echo host $(dig +short +nodnssec AAAA $ns) or; done) host 2001:db8:ffff:ffff::1 \)
# Last (dummy) host just to use the last "or"
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