• Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint

DNS 101

The DNS is a global network of servers structured a lot like an inverted tree (see Figure 14.1). At the top of this tree is the appropriately named root server, which contains a master list of all domain names and their matching IP addresses. The process of translating, or resolving, domain names into numbers is shared by thousands of DNS servers scattered throughout this tree and around the world, each responsible for a specific domain. You don’t need to worry about how domain names are resolved, just how domain names fit together.

Figure 14.1. The Domain Name System: Not all countries administer their domains in exactly the same way. Notice how Japan adds a domain for specifying the nature of the organization—in this case, .co for commercial enterprise.



PREVIEW

                                                                          

Not a subscriber?

Start A Free Trial


  
  • Creative Edge
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint