It's not DNS. It can't be DNS. It was DNS.
Every sysadmin knows the five stages of outage grief, and they all end at DNS. Yet for something that runs the entire internet, a clear and approachable explanation of it is surprisingly hard to find. In this talk, Jonathan will walk through a little history of DNS, what nameservers actually do, what TTLs are, and everything from caching to record types to email. Come learn the backbone technology you blame every day, so next time you can say "it was DNS" with confidence.
Jonathan is the Infrastructure Team Lead for AlmaLinux. He has been consuming open source and building infrastructure in the web hosting industry for over 20 years and actively contributing to open source for roughly the past 6 within the AlmaLinux, Fedora, and EPEL communities, among others. Outside of technology he is an avid hunter and conservationist, boating and water sports enthusiast, member of the United States Coast Guard Auxiliary, and instrument-rated private pilot.