To convert a domain name to an IP address, your browser uses a Domain Name Service (DNS),[346] which is like a giant address book.
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So, to summarize, your browser now knows to use HTTPS to grab the homepage of 216.58.219.206, an IP address that humans fondly call google.com. Your browser packages up this “request” and sends it to the huge computers, or “servers,” that power Google’s website.
Aditya Agashe • Swipe to Unlock: The Primer on Technology and Business Strategy (Fast Forward Your Product Career: The Two Books Required to Land Any PM Job)
Finally, there is that options ndots:5 . This indicates “how many dots should there be in a name for that name to be considered an external name”. In other words, if we try to resolve a , a.b , a.b.c , a.b.c.d , or a.b.c.d.e , the search list will be used - so resolving api.example.com will result in 5 DNS queries (for the 4 elements of the search ... See more