dns
Domain Naming System
Created:
Learning Center — NsLookup.io – set of articles on DNS, record types, email & dns, domain names, operations, security and command line tools (nslookup).
How DNS works. What is DNS? Learn how step by step. – a colorful comic to explain DNS.
New talk: Learning DNS in 10 years by https://jvns.ca including some details on how to use wireshark.