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Using tshark for diagnostic of DNS – debian

tshark is a command-line vrsion of powerfull Wireshark packet analyzer, which may be used for analyzing of DNS question/answer process. tshark is not preinstalled linux distributions. For debian we can installed it directly from the debian repository:

apt-get install tshark

tshark -f "udp port 53" -R "dns.qry.type == A and dns.flags.response == 0"

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