To mount an export using NFS version 2, use the nfs file system
type and specify the nfsvers=2 mount option. To mount using NFS
version 3, use the nfs file system type and specify the nfsvers=3
mount option. To mount using NFS version 4, use either the nfs
file system type, with the nfsvers=4 mount option, or the nfs4
file system type.
The following example from an /etc/fstab file causes the mount
command to negotiate reasonable defaults for NFS behavior.
server:/export /mnt nfs defaults 0 0
Here is an example from an /etc/fstab file for an NFS version 2
mount over UDP.
server:/export /mnt nfs nfsvers=2,proto=udp 0 0
This example shows how to mount using NFS version 4 over TCP with
Kerberos 5 mutual authentication.
server:/export /mnt nfs4 sec=krb5 0 0
This example shows how to mount using NFS version 4 over TCP with
Kerberos 5 privacy or data integrity mode.
server:/export /mnt nfs4 sec=krb5p:krb5i 0 0
This example can be used to mount /usr over NFS.
server:/export /usr nfs ro,nolock,nocto,actimeo=3600 0 0
This example shows how to mount an NFS server using a raw IPv6
link-local address.
[fe80::215:c5ff:fb3e:e2b1%eth0]:/export /mnt nfs defaults 0 0
