All Things Internet

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

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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
1624366314693

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

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