Setting permission for User in a group

[Geetha]

Hi,

 

 I have created repository  having group name called "syseng". In this group  even users are added.

 How to give permission to each user in this group ?

 For example : X Y Z are belonging to the syseng group. I want to give only permission r+x for X,Z to access cvs repository.

Server-Linux

Client-Win2000

regards

Geetha