If you're familiar with a modern smart phone with a "contact list" or "phone book", ask yourself when the last time you've had to recall the actual digits of the phone number are for a friend/family member. Hardly? If ever?
The Internet is made up of IP (Internet Protocol) addresses, the phone numbers of the internet -- an address is simply the location representing an entity and/or resource. It's hard to remember compared to your friend's name or the URL of a site, like Dev.to whose IP from where I am, resolves to 151.101.130.217. That would be difficult to remember each time I wanted to visit this site.
A DNS aka domain name service, provides translation of the URL (top-level domain) to an IP address in a decentralized, semi-federated, fashion that provides essentially a map to take what we can remember and translate it to something that we don't (the actual IP address)
Been using UNIX since the late 80s; Linux since the mid-90s; virtualization since the early 2000s and spent the past few years working in the cloud space.
Location
Alexandria, VA, USA
Education
B.S. Psychology from Pennsylvania State University
Take that contact book and distribute it in a hierarchical fashion: if it's not in your contact-book, your contact-manager app contacts an upstream contact-book to see if it either knows the number or knows "somebody" how knows - or can find out - the person's phone number for you.
...Though that starts bleeding dangerously into "explain LDAP like I'm 5" territory.
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If you're familiar with a modern smart phone with a "contact list" or "phone book", ask yourself when the last time you've had to recall the actual digits of the phone number are for a friend/family member. Hardly? If ever?
The Internet is made up of IP (Internet Protocol) addresses, the phone numbers of the internet -- an address is simply the location representing an entity and/or resource. It's hard to remember compared to your friend's name or the URL of a site, like Dev.to whose IP from where I am, resolves to
151.101.130.217. That would be difficult to remember each time I wanted to visit this site.A DNS aka domain name service, provides translation of the URL (top-level domain) to an IP address in a decentralized, semi-federated, fashion that provides essentially a map to take what we can remember and translate it to something that we don't (the actual IP address)
Perhaps even more critically...
Take that contact book and distribute it in a hierarchical fashion: if it's not in your contact-book, your contact-manager app contacts an upstream contact-book to see if it either knows the number or knows "somebody" how knows - or can find out - the person's phone number for you.
...Though that starts bleeding dangerously into "explain LDAP like I'm 5" territory.