![[2022-01-10-23-27-55.png]] Common public DNS servers ![[Pasted_image_20211222203708.png]] Runs on port `53` > DNS is a hierarchical system of distributed name server databases that contain information on domains and hosts within those domains. > > DNS is operated by ICANN (<https://www.icann.org>), which also manages the generic tld's. Part of [[IP Addressing]] and mapping them to [[Fully Qualified Domain Name]]'s'