All Things Internet

This blog contains English translation of bortzmeyer.org publications for educational purposes.

Retrieving the expiration date of a domain using RDAP

Domains
RDAP
One of the most common problems with domain names is accidental name expiration. " We forgot to renew it" and paf nothing works anymore. However, the date on which the domain expires is publicly announced, via protocols like whois or RDAP.
Retrieving the expiration date of a domain using RDAP

Processing new EDNS options in a program

Internet
DNS
The DNS protocol makes it possible to attach metadata to questions or answers through the EDNS extension, standardized in RFC 6891. A number of options are already standardized and can be manipulated from a program, via a DNS library.
Processing new EDNS options in a program

QUIC and user tracking by the server

Internet
We have sometimes been drawn to a potential privacy problem: of course, QUIC protects well against the surveillance exercised by an actor outside the communication, thanks to its systematic encryption. But what about the monitoring exerted
QUIC and user tracking by the server