1cracklib-format(8) Debian GNU/Linux manual cracklib-format(8)
2
6 cracklib-format, cracklib-packer, cracklib-unpacker - cracklib dictio‐
7 nary utilities
8
10 cracklib-format file ...
11 cracklib-packer cracklib_dictpath
13 cracklib-unpacker cracklib_dictpath
15
17 cracklib-format takes a list of text files each containing a list of
18 words, one per line, It lowercases all words, removes control charac‐
19 ters, and sorts the lists. It outputs the cleaned up list to standard
20 output. The text files may be optionally compressed with gzip(1).
21 If you supply massive amounts of text to cracklib-format you must have
23 enough free space available for use by the sort(1) command. If you do
24 not have 20Mb free in /var/tmp (or whatever temporary area your sort(1)
25 command uses), have a look at the /usr/sbin/cracklib-format program
26 which is a sh(1) program. You can usually tweak the sort(1) command to
27 use any large area of disk you desire, by use of the -T option. crack‐
28 lib-format has a hook for this.
29 cracklib-packer reads from standard input a list of sorted and cleaned
31 words and creates a database in the directory and prefix given by the
32 command line argument cracklib_dictpath. Three files are created with
33 the suffixes of .hwm, .pwd, and .pwi. These three files are in the
34 format that the FascistCheck(3) subroutine, cracklib-unpacker(8), and
35 cracklib-check(8), utilities understand. The number of words read and
36 written are printed on stdout(3).
37 cracklib-unpacker reads from the database in the directory and prefix
39 given by the command line argument cracklib_dictpath and outputs on
40 standard output the list of words that make up the database.
41 The database is in a binary format generated by the utilities crack‐
43 lib-format(8) and cracklib-packer(8). On a Debian system the database
44 is located in the directory /var/cache/cracklib/cracklib_dict and is
45 generated daily with the program /etc/cron.daily/cracklib. The loca‐
46 tion is also defined in the header file crack.h using the constant
47 CRACKLIB_DICTPATH though none of the subroutines in the cracklib
48 libraries have this location hardcoded into their implementations.
49
52 /var/cache/cracklib/cracklib_dict.[hwm|pwd|pwi]
53 cracklib dictionary database files used by utilities.
54 /etc/cron.daily/cracklib
56 cracklib daily cron program to rebuild the cracklib dictionary
57 database.
58 /etc/cracklib/cracklib.conf
60 cracklib configuration file used by the cracklib daily cron pro‐
61 gram to rebuild the cracklib dictionary database.
62 /usr/include/crack.h
64 cracklib header file defining the subroutine FascistCheck(3) and
65 the constant CRACKLIB_DICTPATH used to compile in the location
66 of the cracklib dictionary database for these utilities.
67 /usr/sbin/cracklib-format
69 cracklib shell script to create initial list of words for dic‐
70 tionary database.
71
73 FascistCheck(3), cracklib-check(8), update-cracklib(8), create-crack‐
74 lib-dict(8)
75 /usr/share/doc/libcrack2/libcrack2.html
76 /usr/share/doc/cracklib-runtime/cracklib-runtime.html
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79 cracklib2 is written by Alec Muffett <alecm@crypto.dircon.co.uk>. Man‐
80 ual added by Jean Pierre LeJacq <jplejacq@quoininc.com>.
812.7-8.5 Sat Jun 21 22:43:12 CEST 2008 cracklib-format(8)