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20.3.1 NFS Client

The client normally mounts all file systems listed in /etc/fstab during the boot process. Those of type nfs are mounted when the "mount -at nfs" command is issued in /etc/rc.single, e.g. an nfs entry in fstab might be:

tardis:/home /home nfs rw 0 0

You can also mount file systems from the command line, e.g.:

# mount -t nfs tardis:/home /home

This will issue an NFS request to the server, tardis, to mount the file system, /home, on the local directory, /home.

The client needs to be running the block IO daemon, biod, to buffer NFS requests (normally 4 are started).

Another way to mount file systems is to use the automounter. The automount daemon, automount, will automatically mount the desired file system whenever a file/directory in that file system is accessed. It intercepts any requests for access to the file system and then uses the information in a NIS map or local file to decide how and where to mount the file system. If no access is made after a few minutes the file system is unmounted again.

Unix System Administration - 8 AUG 1996
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