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

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 estimated 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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