1 .\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
2 .\" All rights reserved.
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29 .\" $OpenBSD: fsirand.8,v 1.6 1997/02/23 03:58:26 millert Exp $
37 .Nd randomize inode generation numbers
48 command installs random generation numbers on all the inodes for
49 each filesystem specified on the command line by
51 This increases the security of NFS-exported filesystems by making
52 it difficult to ``guess'' filehandles.
56 now does the equivalent of
58 itself so it is no longer necessary to
61 by hand on a new filesystem. It is only used to
62 re-randomize or report on an existing filesystem.
65 should only be used on an unmounted filesystem that
68 or a filesystem that is mounted read-only.
70 may be used on the root filesystem in single-user mode
71 but the system should be rebooted via ``reboot -n'' afterwards.
73 .Bl -tag -width indent
74 The available options are as follows:
76 Use the default block size (usually 512 bytes) instead
77 of the value gleaned from the disklabel.
81 to run even if the filesystem on
83 is not marked as clean.
85 Print the current generation numbers for all inodes instead of
91 allocates enough memory to hold all the inodes in
92 a given cylinder group it may use a large amount
93 of memory for large disks with few cylinder groups.
101 command appeared in SunOS 3.x.
110 version first appeared in
113 .An Todd C. Miller Aq Todd.Miller@courtesan.com