Recently i have apply NIS in our testing environment in order to get more control and centralized password management for user in the server.But when I'm finished implementing the NIS,I'm facing some issues.The issues are :
1.How to add existing user into NIS? For example,Let say I have two servers named NIS server and NIS client.If there are existing user in NIS client,can we add it to NIS map in NIS server?or do we need to create these user manually? I can manually add the credential for the user manually but it is not convenient for me to write again all hundred of the users in the system.
2.Is there any way to devide the user to several group? We want to restrict some user to only access some server.Could we do that in NIS?
I've tried to do some research regarding this issue,but it seems that there are lacking documentation for NIS in centos.Any help really appreciated.Thanks.