FSIRAND(8) | System Manager's Manual | FSIRAND(8) |
fsirand
—
fsirand |
[-F ] [-p ]
[-x constant]
special |
fsirand
writes random inode generation numbers for all
the inodes on device special. These random numbers make
the NFS filehandles less predictable, which was once thought to increase
security of exported file systems.
fsirand
is no longer relevant because
newfs(8) has randomized inode
generation numbers on all new file systems since NetBSD
2.0, and in any case, exporting a file system to NFS clients allows
them to traverse the entire file system, so making filehandles less
predictable does not prevent clients from finding them anyway.
fsirand
should be run on a clean and
unmounted filesystem.
The options are as follows:
-F
-p
-x
constantfsirand
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.
fsirand
utility appeared in NetBSD
1.3.
September 11, 2016 | NetBSD 9.4 |