cpu.conf - cpu configuration file
This file stores all configurable options for CPU and CPU modules.
You can specify the location of the configuration file at runtime by
specifying the --config or -C command line switches (see
cpu(8)). Each CPU module has its own configuration section, but they
are all documented here. It is recommended that the config file have strict
permissions such as 600. Please note that configuration options take the
following format: option = value and section headers are of the format
[HEADER]
Global options should be under the section marked [GLOBAL]. All
options under this section impact all operations.
- DEFAULT_METHOD
= method
- Specifies what the default administration method is. This value should be
a string of either ldap or passwd.
- CRACKLIB_DICTIONARY
= file
- If CPU was compiled --with-libcrack file should be the location of
cracklib_dict.
LDAP options should be under the section marked [LDAP]. These
options are only useful when DEFAULT_METHOD is set to ldap or when
ldap was specified at the command line with the -M switch. These
options are only used by the LDAP module.
- LDAP_HOST =
hostname
- hostname should be either the IP address or the hostname of the
server running the LDAP directory that you wish to administer users on.
This can be overridden with the -N command line switch.
- LDAP_PORT =
port
- port is the port that the LDAP server specified by LDAP_HOST
is listening on. This value must be non negative. This can be overridden
by the -P command line switch.
- BIND_DN =
dn
- dn should be the fully qualified DN of an LDAP entity with
appropriate rights to perform any actions that you wish. This value can be
overridden by the -D command line switch.
- BIND_PASS =
password
- password is the password of the entity specified by BIND_DN.
This value is passed directly to the server, so it may be stored encrypted
if your server supports this. This value can be overridden by the
-w command line switch.
- USER_BASE =
base_dn
- base_dn is the base dn that users should be added to, search for,
deleted from, or modified from. In general if you wish to add a user to
the following dn: ou=users,o=company,c=us base_dn should be set to
ou=users,o=company,c=us. If you set this value to o=company,c=us users
will be added to that dn, although for searching purposes the scope is
more broad. This value can be overridden at the command line with the
-U switch.
- GROUP_BASE
= base_dn
- base_dn is the base dn that groups should be added to, search for,
deleted from, or modified from. In general if you wish to add a group to
the following dn: ou=group,o=company,c=us base_dn should be set to
ou=group,o=company,c=us. If you set this value to o=company,c=us groups
will be added to that dn, although for searching purposes the scope is
more broad. This value can be overridden at the command line with the
-B switch.
- USER_OBJECT_CLASS
= object_class
- GROUP_OBJECT_CLASS
= object_class
- object_class is a comma separated list of object classes that are
required by your LDAP directories schema in order to add or modify users
and groups. The default should be fine, consult your vendors documentation
or contact cpu-users@lists.sourceforge.net if you have
problems.
- USER_FILTER
= filter
- GROUP_FILTER
= filter
- filter is a filter that adhears to the following BNF:
<filter> ::= '(' <filtercomp> ')'
<filtercomp> ::= <and> | <or> | <not> | <simple>
<and> ::= '&' <filterlist>
<or> ::= '|' <filterlist>
<not> ::= '!' <filter>
<filterlist> ::= <filter> | <filter> <filterlist>
<simple> ::= <attributetype> <filtertype> <attributevalue>
<filtertype> ::= '=' | '~=' | '<=' | '>='
These filters are utilized to locate users and groups, as well as to aid in
finding new uid's and gid's.
- USER_CN_STRING
= string
- string is used during user creation. It allows you to specify the
dn of the user. The dn becomes string=login,...
- GROUP_CN_STRING
= string
- string is used during group creation. It allows you to specify the
dn of the group. The dn becomes string=groupname,...
- TIMEOUT =
timeout
- timeout should be a value in seconds and greater than 0. If
unspecified the default is 60. This value determines the duration after
which an operation should be aborted.
The following options are still used by the [LDAP] section, but
are more user centric and less ldap centric.
- SKEL_DIR =
dir
- dir should be the path for a directory that files are to be copied
from when -m is given at the command line. This value can be
overridden by the -k command line switch.
- DEFAULT_SHELL
= shell
- The default name of the user's login shell. This value can be overridden
by the -s command line switch.
- HOME_DIRECTORY
= directory
- New users will be created using directory prepended to the users
login name. If this variable is undefined, it must be specified at the
command line with the -d switch. When specified at the command line
that value is used for the users home directory.
- MAX_UIDNUMBER
= integer
- MIN_UIDNUMBER
= integer
- MAX_GIDNUMBER
= integer
- MIN_GIDNUMBER
= integer
- ID_MAX_PASSES
= integer
- These values control gid and uid generation. When a uid is not specified
at the command line (for a useradd) these values are used for finding the
next unused uid (random or linear). Similar for groupadd. These are pretty
self evident. ID_MAX_PASSES is the number of times that a search
should be performed before giving up.
- RANDOM = true or
false
- If RANDOM is true, then a random number will be generated
and searched for (this number, if unused in the directory, will be the
users uid or a groups gid). If a user or group with that ID exists, the
process will continue for ID_MAX_PASSES. If true, a linear
scan will be done starting at MIN_UIDNUMBER (or GIDNUMBER) and will
not stop until an unused ID is found or the number of scans is equal to
ID_MAX_PASSES. If random is false, only one query is done on the
directory, but it may still be a bit slower then setting random to true in
some cases.
- USERGROUPS
= yes or no
- The USERGROUPS can be either yes or no. If yes, each created user
will be given their own group to use as a default. If no, each created
user will be placed in the group whose gid is USER_GID.
- USERS_GID =
integer
- If USERGROUPS is no, then USERS_GID should be the GID of the
group ´users´ (or the equivalent group) on your system. If
this is unspecified, the default is 100.
- GECOS =
string
- The default value for a user's gecos field. This can be overridden at the
command line with the -c switch.
- PASSWORD_FILE
= file
- The value should be a Unix style, passwd formatted file. In order to use
this value the -F switch must be used at the command line. This
value can be empty if a file is provided with the -F switch. In
this case, the users attributes are taken from the file (if the user is
found) and used in the LDAP entry.
- SHADOW_FILE
= file
- The value should be a Unix style, shadow formatted file. In order to use
this value the -S switch must be used at the command line. This
value can be empty if a file is provided with the -S switch. In
this case, the users attributes are taken from the file (if the user is
found) and used in the LDAP entry (including the password).
- HASH =
hash
- hash is a hash of either clear, md5crypt, crypt, sha1, ssha1, md5,
or smd5 to be used when hashing user passwords. This is largely
implementation dependent but all are supported. If you are taking
passwords from a standard password file, this should be clear (I think,
need to check...). This can be overridden at the command line with the
-H switch.
- SHADOWLASTCHANGE
= integer
- SHADOWMAX =
integer
- SHADOWWARING
= integer
- SHADOWEXPIRE
= integer
- SHADOWFLAG
= integer
- SHADOWMIN =
integer
- SHADOWINACTIVE
= integer
- These values are better documented in shadow(3) and in
shadow(5). These are not required by RFC2307 but are by some ldap
authentication implementations. These values can only be specified here,
or taken from an existing shadow file for the user.
- ADD_SCRIPT
= executable
- DEL_SCRIPT
= executable
- ADD_SCRIPT and DEL_SCRIPT work the same, however ADD_SCRIPT is used only
for a useradd operation and DEL_SCRIPT is used only for a userdel
operation. These can be overridden via the command line switch -X. If
specified in the configuration file or at the command line, the script is
executed after a successful useradd or userdel. The first argument to the
script is the login name as specified at the command line.
Password options should be under the section marked [PASSWD].
These options are only useful when DEFAULT_METHOD is set to passwd or
when passwd was specified at the command line with the -M switch.
These options are only used by the passwd module. This module is not yet
functional, so I won't document the options.
Blake Matheny <bmatheny@purdue.edu>
The current version of this software is always available at
http://cpu.sourceforge.net
To report a bug or problem, please e-mail:
cpu-users@lists.sourceforge.net
See TODO file that accompanied software. Please e-mail us with any
additional suggestions.