Terme informatique

DNS over HTTPS (DoH)

A method that encrypts requests DNS in a connection HTTPS.

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Simple definition

A method that encrypts requests DNS in a connection HTTPS.

Technical definition

DNS – HTTPS encapsulates requests DNS in HTTP secure, usually on TCP 443, to protect their contents on the route to the solver.

What is it used for ?

Limiting the observation or modification of requests DNS on certain networks.

Practical example

A browser can use a DoH solver instead of sending its queries DNS Classics in plain.

Common issues

  • The DNS of enterprise
  • DoH solver imposed by an application
  • Difficulties in filtering or diagnosing

DNS · HTTPS · Firewall

Key takeaway: This entry explains the general operation of the term. Exact settings may vary depending on software, vendors and environments.

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