fsirand(8) [netbsd man page]

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 pre-
     dictable, 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

fsirand(1M)						  System Administration Commands					       fsirand(1M)

NAME

       fsirand - install random inode generation numbers

SYNOPSIS

       fsirand [-p] special

DESCRIPTION

       fsirand installs random inode generation numbers on all the inodes on device special, and also installs a file system ID in the superblock.
       This helps increase the security of file systems exported by NFS.

       fsirand must be used only on an unmounted file system that has been checked with fsck(1M) The only exception is that it can be used on  the
       root file system in single-user mode, if the system is immediately re-booted afterwards.

OPTIONS

       -p	Print out the generation numbers for all the inodes, but do not change the generation numbers.

USAGE

       See largefile(5) for the description of the behavior of fsirand when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       fsck(1M), attributes(5), largefile(5)

SunOS 5.10							    16 Sep 1996 						       fsirand(1M)