dns-over-https | High performance DNS over HTTPS client & server | DNS library
kandi X-RAY | dns-over-https Summary
kandi X-RAY | dns-over-https Summary
High performance DNS over HTTPS client & server
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QUESTION
I am writing DNS-over-HTTPS server which should resolve custom names, not just proxy them to some other DoH server, like Google's. I am having trouble properly decoding the body of the request.
For example, I get body of request, that is in binary format, specifically in javascript in Uint8 ArrayBuffer type. I am using the following code to get base64 format of the array:
...ANSWER
Answered 2021-Aug-05 at 14:35As stated in the RFC:
- Definition of the "application/dns-message" Media Type
The data payload for the "application/dns-message" media type is a single message of the DNS on-the-wire format defined in Section 4.2.1 of [RFC1035], which in turn refers to the full wire format defined in Section 4.1 of that RFC.
So what you get is exactly what is sent on the wire in the normal DNS over 53 case.
I would recommend you use a DNS library that should have a from_wire
or similar method to which you can feed this content and get back some structured data.
Showing an example in Python with the content you gave:
QUESTION
I was just introduced to the Domain Name System Security Extensions (DNSSEC) and it sounds very similar to the concept of DNS-over-HTTPS (DoH) and DNS-over-TLS: to add privacy and security into DNS lookups.
What are the main differences between these protocols? Do they compete/serve the same goals?
...ANSWER
Answered 2020-Sep-03 at 01:52DNSSEC just signs answers, to check integrity and preserve DNS cache poisoning from unauthorized fake "servers". With DNSSEC, any eavesdropper can:
- listen traffic
- understand "this is DNS"
- watch domain names for request/responses.
DOH is DNS over HTTPS. There is:
- traffic encrypted
- eavesdropper cannot understand - is this DNS or web http.
- eavesdropper unable to see contains of requests/answers.
Advantage of DNSSEC - more quick. Advantage of DOH - more private.
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