Mounting external NFS files

If you want to mount external files using NFS then first reconfigure the firewall as in the previous section. If you only need to mount files on the front end server then it is sufficient to add an entry to /etc/fstab on the front end. If you need to mount files on all the compute nodes as well (not recommended) then your external NFS server should be capable of accepting insecure mount requests since the mount requests coming from the compute nodes will be mapped to high port numbers greater than 1024. If your external NFS server is a Linux host then the exports option need to contain the insecure option.