This table lists the best understanding of current the current status of DNS-over-TLS related features in the latest stable releases of a selection of commonly used open source DNS software.
If there are errors of or glaring omission please email firstname.lastname@example.org
Coming soon will be guides on how to use NGINX and other proxies to provide DNS-over-TLS, also see here. Note that this will still require the nameserver to have full robust TCP capabilities for (as described in Sections 6.2.2 and 10 of RFC7766) for production level service. Any server that fully implements EDNS0 Keepalive (RFC7828) should meet this criteria.
See the DNS-over-TLS reference material page for more details on the indivudual individual features.
|TCP fast open(b)|
|Connection reuse (Q/R, Q/R, Q/R)|
Pipelining of queries(Q,Q,Q,R,R,R)
|Process OOOR (Q1,Q2,R2,R1)||n/a|
|TLS encryption (Port 853)|