|FSIRAND(8)||System Manager's Manual||FSIRAND(8)|
fsirandcommand installs random generation numbers on all the inodes for each filesystem specified on the command line by special. This increases the security of NFS-exported filesystems by making it difficult to “guess” filehandles.
now does the equivalent of
fsirand itself so it is
no longer necessary to run
fsirand by hand on a new
filesystem. It is only used to re-randomize or report on an existing
fsirand should only be used on an
unmounted filesystem that has been checked with
fsck(8) or a filesystem that is mounted
fsirand may be used on the root
filesystem in single-user mode but the system should be rebooted via
“reboot -n” afterwards.
The options are as follows:
fsirandcommand appeared in SunOS 3.x. This version of
fsirandfirst appeared in OpenBSD 2.1.
fsirandallocates 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.
|January 25, 2019||OpenBSD-current|