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NetBSD 6.1.5 - man page for fsirand (netbsd section 8)

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FSIRAND(8)			   BSD System Manager's Manual			       FSIRAND(8)

NAME
     fsirand -- install random inode generation numbers in a filesystem

SYNOPSIS
     fsirand [-F] [-p] [-x constant] special

DESCRIPTION
     fsirand writes random inode generation numbers for all the inodes on device special.  These
     random numbers make the NFS filehandles less predictable, increasing security of exported
     filesystems.

     fsirand should be run on a clean and unmounted filesystem.

     The options are as follows:

     -F      Indicates that special is a file system image, rather than a device name.	special
	     will be accessed 'as-is', without requiring that it is a raw character device and
	     without attempting to read a disklabel.

     -p      Print the current inode generation numbers; the filesystem is not modified.

     -x constant
	     Exclusive-or the given constant with the random number used in the generation
	     process.

     fsirand exits zero on success, non-zero on failure.

     If fsirand receives a SIGINFO signal, statistics on the amount of work completed and esti-
     mated completion time (in minutes:seconds) will be written to the standard error output.

SEE ALSO
     fsck_ffs(8), newfs(8)

BSD					November 16, 2001				      BSD
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