Protect your DNS traffic is easy to. You have your choice of 3 built in options. The fourth isnt covered as no diagnostic information was available to show things were working as expected. There is a custom option that is available for advanced users or special situations
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There is where I bought my Peplink B One 5G.
https://buypeplink.com/
00:55 - What we will be covering
01:42 - What is DoH?
03:53 - DoH using Cloudflare
06:23 - DoH using OpenDNS
08:23 - DoH using Quad9