Updating bind host files
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.
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 another team gets added then you create another paper list for team D.
So now you have three lists but who manages the lists?
Teams A, B, C and each team has 20 players in the squad.
What you need is for anyone to be able to contact any player on any of the teams.
So an alternative is to create three lists one for team A , one for team B and one for team C.
See Understanding DNS lookups What happens when a Manager goes on holiday?
Well all they need to do is to photocopy their list and give it to someone else (Barry for example), and tell Bill the Contact number of the person so Bill can update his list.
Also Bill needs to know who has the team list for all of the teams below him, but John only needs to know the phone number for the Top of the Tree, which in this case is Bill as we have only two levels, but it doesn’t have to be.
i.e you traverse the tree from top to bottom and not from bottom to top.