Remove "/sbin/nologin" Restriction
Dear Friends ,
I have a Mail server with REdhat Enterprise Linux . Suppose here i add a user "red" like the following way :
useradd red -s /sbin/nologin
so that the "red" user cannot login into my server . But my question is if i want to remove this restriction from "red" user i.e., If i want "red" user can login into my mail server later then what should I need to do ?