this post was submitted on 05 Aug 2023
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anything in particular I can clear up?
blow by blow: first the request for an A record ( ipv4 address) for lemmy.ml is sent to a.root-servers.net ( one of several core name servers to the entire internet)
they don't reply with an A record, but instead a few NS ( nameserver) records for .ml and then in the additional section also give use the ipv4 and ipv6 addresses to those .ml name servers
so we go ask those .ml servers again for an A record for lemmy.ml, they still don't give us that A record, but instead say these ns.freenom.com name servers are responsible.
we ask one of them and they finally give us that A record: lemmy.ml is 54.36.178.108 so your computer knows to connect to 54.36.178.108 when you ask for lemmy.ml.
its the first and last two columns that are important. the second column is just how many seconds that information should be considered good for before asking again to make sure it hasn't changed
🫤 Okay. Thanks.