To configure NFS services and share a directory using NFS Shared services, follow these steps. First, you need to ensure the necessary NFS packages are installed by running `yum install nfs-utils`. Next, start the required services with `systemctl start rpcbind` and `systemctl start nfs-server`. Then, configure the NFS exports by editing the `/etc/exports` file to include the directory you want to share, for example: `/root/shared *(rw)`. Save and exit the editor, and then export the file system using `exportfs -a`. Verify the exported directories using `showmount -e localhost`. Additionally, you may want to ensure that the necessary services are enabled to start on boot by using `systemctl enable rpcbind` and `systemctl enable nfs-server`. These steps ensure your NFS services are configured correctly and your directory is shared as needed.