Updating bind host files
To modify the hosts file, you add two entries to the file that contains the IP address that you want the site to resolve to and the address.
Adding the following two lines, for example, point to our current PHP5-ITK (“Refreshed” PHP5) cluster: After you add the domain information and save the file, your system begins resolving to the specified IP address. Windows 10, Windows 8, Windows 7, and Windows Vista use User Account Control (UAC), so Notepad must be run as Administrator.
If you imagine that you (Bill) have organized a football league that has three teams.Well each team has a manager so you let the manager handle the list for the team.So Now the league organiser Bill wants the phone number of Steve who plays for Team A. Well he first needs to know who has the player list for Team A.So you could create a paper list and write the names and phone numbers on it. This works but gets to be a problem if the league expands and you get,for example, 10 teams.So an alternative is to create three lists one for team A , one for team B and one for team C.