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For devices configured to use Umbrella for DoH and DoT:
An issue has been reported where Umbrella may close the connection for devices sending multiple DoH/DoT requests over a single TCP connection. While only some DoH/DoT client implementations are ...
Sorry for the late reply to this one! You can configure all of our DNS services, including Family Shield, in most modern browsers as a DNS-over-HTTPS (DoH) or DNS-over-TLS (DoT) endpoint. Depending on the implementation, sometimes you can just enter ...
OPNsense in its Unbound and DNSmasq services has overrides available for hosts and domains.Equivalence in SSE:Host Overrides: Any domain names can be enforced through content and security controls, such as matching a name in a Destination List, conte...
Hi GUNBUNS,
A couple things worth checking from Edge and your phone; visit https://www.dnsleaktest.com/ (Warning: Third-party site) and run the basic test, see if you're getting DNS from anyone other than Cisco OpenDNS.
If you see anyone other than O...
Indeed this technique is a bit old-hat, we have material from six years ago specifically mentioning fast flux as a concern for DNS security for the federal government: https://blogs.cisco.com/government/securing-government-it-all-starts-at-the-dns-la...
Correct, the "myip" parameter is not required when calling this API endpoint.
Clients really only need to query for their own IP address in order to know if it's been recently changed by their ISP, so they know when to send a new update to the API. T...
