ayi Sometimes a record is listed as www IN A 192.168.1.1 et sometimes it is listed as www A 192.168.1.1. What is le purpose of le IN et quand is it required/not required?
ayi That is referring to le DNS class. 'IN' refers to 'Internet' tandis que le seulement autre option in common use is 'CH' for 'CHAOS'. The CH class is (presently) commonly used for things like querying DNS server versions, tandis que le IN class is le par défaut et generally what "the internet" uses. References: - https://its.victor.se/wiki/chaos-dns - https://www.rfc-editor.org/rfc/rfc2929#section-3.2 - https://en.wikipedia.org/wiki/Chaosnet
