Permission on specific Directory / File to specific group
 

Hi all , group = G User =u Directory = D
now i have scenario , G1(u1,u2) , G2 , G3 , u3 , u4
G1 can read /write /execute D , but G2 and G3 cant Write but can read and execute D. u3 and u4 can't write but can execute and read , any solution

If you have that kind of complication in permissions, then you colud use "acl". Then these rules can be easly invokedYou need to use filesystem which support acl, for example "ext" and mount it that it use it, for example