An Acronym for NetworkFileSystem. Sometimes also scornfully expanded as Nightmare FileSystem.
Some useful NFS diagnostic commands:
- rpcinfo -e hostname
- Show what programs (and versions) are registered with the portmapper over what network protocol.
- exportfs -a
- Update the NFS daemon with whats listed in /etc/exports
- showmount hostname
- List all hosts that are considered to be mounted a filesystem on hostname
- showmount -a hostname
- Lists all exported filesystems on host hostname
See also some extremely good documentation on NFS issues.
Or stories about funny (or not so) resource problems.