Интерактивная система просмотра системных руководств (man-ов)
fsirand (8)
fsirand (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
>> fsirand (8) ( FreeBSD man: Команды системного администрирования )
BSD mandoc
NAME
fsirand
- randomize inode generation numbers
SYNOPSIS
[-b
]
[-f
]
[-p
]
special
[special ...
]
DESCRIPTION
The
utility installs random generation numbers on all the inodes for
each file system specified on the command line by
special
This increases the security of NFS-exported file systems by making
it difficult to ``guess'' filehandles.
Notenewfs(8)
now does the equivalent of
itself so it is no longer necessary to
run
by hand on a new file system.
It is only used to
re-randomize or report on an existing file system.
The
utility should only be used on an unmounted file system that
has been checked with
fsck(8)
or a file system that is mounted read-only.
The
utility may be used on the root file system in single-user mode
but the system should be rebooted via ``reboot -n'' afterwards.
OPTIONS
The available options are as follows:
-b
Use the default block size (usually 512 bytes) instead
of the value gleaned from the disklabel.
-f
Force
to run even if the file system on
special
is not marked as clean.
-p
Print the current generation numbers for all inodes instead of
generating new ones.
CAVEATS
Since
allocates enough memory to hold all the inodes in
a given cylinder group it may use a large amount
of memory for large disks with few cylinder groups.
