Question: Add two users natasha and henry. Their password should be nimsdeg. Create a new group adminagrp. Add natasha and henry to admingroup. 
          Now copy /etc/fstab to /var/tmp/. Make sure all members of admingroup has access to the copied file. But henry should have no read/write access.


Solution:

groupadd admingrp

useradd natasha
useradd henry

passwd natasha
passwd henry

usermod -aG admingrp natasha
usermod -aG admingrp henry


cp /etc/fstab /var/tmp

chown :admingrp	/var/tmp/fstab

setfacl -m -u:henry:--- /var/tmp/fstab


# Verify
getfacl /var/tmp/fstab
