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tcpdump command update
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bvanlieu committed Jan 24, 2024
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2 changes: 1 addition & 1 deletion docs/class6/configuration.rst
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Expand Up @@ -271,7 +271,7 @@ Finally, minimize *Firefox* to reveal the CLI shortcuts on the desktop:

First open the BIG-IP DNS Proxy link to bring up the BIG-IP’s CLI. Once running, then let’s start a capture that will show us both sides of the DoH proxy: ::
tcpdump -nni 0.0 '(host 10.1.1.4 and host 10.1.10.100 and port 443) or (host 8.8.4.4 or host 8.8.8.8 and port 53)'
tcpdump -nni 0.0 '(host 10.1.1.4 and host 10.1.10.6 and port 443) or (host 8.8.4.4 or host 8.8.8.8 and port 53)'

Once running, maximize *Firefox* and perform another DNS lookup. View the HTTPS and DNS traffic in the packet capture output. The output below shows my queries to various websites.

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