A) Explanation: yum install -y autofs mkdir /home/rehome /etc/auto.master /home/rehome/etc/auto.ldap Keep then exit cp /etc/auto.misc /etc/auto.ldap /etc/auto.ldap ldapuserX -fstype=nfs,rw server.domain11.example.com:/home/guests/ Keep then exit systemctl start autofs systemctl enable autofs su - ldapuserX// test If the above solutions cannot create files or the command prompt is -bash-4.2$, it maybe exist multi-level directory, this needs to change the server.domain11.example.com:/home/guests/ to server.domain11.example.com:/home/guests/ldapuserX. What is multi-level directory? It means there is a directory of ldapuserX under the /home/guests/ldapuserX in the questions. This directory is the real directory.