How can I verify that Cloudflare DNS over TLS is working correctly in OPNsense?

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Grade: Education Subject: Support
How can I verify that Cloudflare DNS over TLS is working correctly in OPNsense?
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After configuration, you can use online tools like DNSLeakTest or a command-line tool like `dig` or `nslookup` to query your DNS server. The results should show that your queries are being resolved by Cloudflare servers and that your connection is encrypted (using TLS).