Global catalog is a WINDOWS SERVER FEATURE which contain all the thing’s and information of that server and their client’s and all the different domain’s as well as by making releationship between them.
Any other server can also make global catalog of his domain to manage and for working fast and relief.
It contains some info of all following thing.
Server
Clients
Different server domain
etc
adding global catalog any system own choice.
Go to ad sites and services from administrative tools.
=server
=properties.
