Domains are just high level wrappers on IP addresses. Because we are humans, we can't remember most IP addresses.
IP address-127.0.0.1 IP - Internet Protocol
- DNS- Maps IP addresses to domains.
- DNS- Domain Name system- (internet handbook).
- DNS is a friendly way of resolving IP addresses to their domain names.
Local cache LAN DNS server ISP DNS server You always want to make the shortest hop possible so websites like Netflix or Facebook are probably on your local caches.
People are always trying to break your computer. We always have to be mindful of security.
ping tells us if the serve is alive. Tells us how many hopes that are required to reach the server.
A VPS takes a dedicated server and breaks into smll chunks which we can all use.
- flexbile
- scalable
- on demand
- AWS
- Rackspace
- Digital Ocean