For installation :
sudo yum install dnstop
And now some description:
To help find especially undesirable DNS queries, dnstop provides a
number of filters.
dnstop can either read packets from the live capture device, or from a
Couple of days back, I realized there was too much network activity on my
system, although I was not doing anything. Fired up wireshark and to my
astonishment, there was too much of DNS traffic on the network. But the
problem was analyzing the data in wireshark and this is where dnstop came
into light. It helped me narrow down the issue within minutes and problems
And how to run it :
sudo dnstop eth1
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