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.
-xconstant- 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
HISTORY
A fsirand utility appeared in
NetBSD 1.3.
AUTHORS
Christos Zoulas <christos@NetBSD.org>.