Ubuntu Manpage: cpu - a user administration tool for LDAP backends

NAME

       cpu - a user administration tool for LDAP backends

SYNOPSIS

       cpu user{add,del,mod} [options] login

       cpu group{add,del,mod} [options] group

       cpu cat

DESCRIPTION

       The  ldap  module for cpu provides a means for administering groups and users being stored
       on an LDAP backend. Complete compatibility with the GNU/Linux versions of the shadow utils
       has  tried  to  be  maintained in terms of command line options. This module also supports
       several options that traditional user utilities do not such as; selecting  which  hash  to
       use  for the user, generating random or linear uid's and gid's and pulling information for
       a user from existing password and shadow files.

LDAP OPTIONS

The LDAP options are options that are used specifically for the LDAP server. They may be
combined with any of the cpu functions.

-2, --2
Use LDAPv2 instead of LDAPv3

-a file, --addfile=file
If a filename is given, it will be parsed and any additional ldap attributes
specified in this file will be added along with the user or group. This file should
not contain any attributes that CPU requires or that you have already specified in
the configuration file. If you do this the modification/addition will fail or
create multivalued attributes. The format of the file should be:

<attrdesc>: <attrvalue>
<attrdesc>: <attrvalue>
<attrdesc>:: <base64-encoded-value>
...

-A cn, --cn=cn
This options specifies for a user what the dn should look like. If you specify -A
foo for some user, their dn will look like foo=username,... This can be specified
in the configuration file with USER_CN_STRING

-B base, --groupbase=base
This is the base to search for groups in. This is required for useradd and for any
group functions. This should be a fully qualified base such as
ou=groups,o=company,c=us. This corresponds to the GROUP_BASE configuration option.

-D bind_dn, --binddn=bind_dn
The bind_dn should be a DN with adequate credentials for the operation that you are
requesting. This corresponds to the BIND_DN configuration file option.

-F[file], --passfile[=file]
If an argument is provided, that file should be of a Unix style password format. If
no argument is provided, the configuration file variable PASSWORD_FILE will be
used. Please be sure that the switch (-F or --passfile) has no trailing whitespace,
it should be immediately followed by the argument. The information associated with
the user will be used for populating their LDAP entry (uid, gid, gecos, home
directory, shell).

-H hash, --hash=hash
Hash should be one of sha1, md5, ssha1, smd5, crypt, md5crypt or clear. This
corresponds to the HASH configuration file variable. Select the hash that is being
used at your site.

-N hostname, --hostname=hostname
Hostname should be the hostname that is running the LDAP service. This may be an IP
address or hostname. This corresponds to the LDAP_HOST variable in the
configuration file.

-o, --nonposix
Violate POSIX naming standards and allow characters in user and group names not in
the character set [A-Za-z0-9._-]. This is useful for things like adding Samba
machine accounts.

-P port, --port=port
Port should be the port that the LDAP server is listening on. This corresponds to
the LDAP_PORT option in the configuration file.

-R length, --random=random
length should be the length that you would like a randomly generated password to
be. This password will be displayed to the user.

-S[file], --shadfile[=file]
If an argument is provided, that file should be of a Unix style shadow format. If
no argument is provided, the configuration file variable SHADOW_FILE will be used.
Please be sure that the switch (-S or --shadfile) has no trailing whitespace, it
should be immediately followed by the argument. The information associated with the
user will be used for populating their LDAP entry (password, sp_lstchg, sp_min,
sp_max, sp_warn, sp_inact, sp_expire).

-t timeout, --timeout=timeout
This value is used to specify how long (in seconds) before LDAP operations should
time out. The corresponding configuration file is TIMEOUT.

-U base, --userbase=base
This is the base to search for users in. This is required for any user functions.
This should be a fully qualified base such as ou=users,o=company,c=us. This
corresponds to the USER_BASE configuration option.

-w[pass], --bindpass[=pass]
If an argument is provided, that value will be used for the bind password. If no
argument is provided, the user will be prompted for a password. This option can be
omitted by specifying the password in the configuration file with the option
BIND_PASS. If a value is specified at the command line, the switch should have no
whitespace following it.

-x, --tls
Try to starttls before talking with the ldap server.

The following options can be used for populating LDAP attributes.

-f name, --firstname=name
Name is used in possible combination with lastname in order to have a more complete
CN. This value is also used for the givenName (gn) attribute. This value is not
required by RFC2307.

-E name, --lastname=name
Name is used in possible combination with firstname in order to have a more
complete CN. This value is also used for the surname (sn) attribute. This value is
not required by RFC2307.

-e address, --email=address
The value address is used to populate the mail attribute. This attribute is not
required by RFC2307 for posixAccount but many people's LDAP schemas do require it.
inetOrgPerson is one object that contains it.

The following options are not LDAP specific.

-h, --help
Display help.

-v, --verbose
Turn the verbose level up.

-V, --version
Display the version of the module.

cpu cat

       The  cat  command  will  cause  any  users  and  groups stored in the LDAP directory to be
       displayed in a Unix style format. cat requires no options.

cpu useradd [options] login

The useradd function is used to add new users to an LDAP directory. The options are
similar to those used by traditional GNU/Linux user administration utilities.

-c comment, --gecos=comment
The value specified is used to populate the gecos attribute. You can specify a
default value in the configuration file using the GECOS variable. This is not
required by RFC2307. This can also be populated using the -F option (see above).

-d home_dir, --directory=home_dir
The new user will be created using home_dir as the value for the user's login
directory. The default is to append login to HOME_DIRECTORY (from the configuration
file) and use that as the login directory name. This is required by RFC2307.

-g initial_group, --gid=initial_group
The group id or name of the user's initial login group. The group should exist but
does not have to. CPU will search the LDAP directory and warn you if that group
does not exist. If the group does exist, the users gidNumber will be set to the
gidNumber of that group. This is required by RFC2307. If unspecified CPU will
search for the next unused GID. This behavior can be adjusted by MAX_GIDNUMBER,
MIN_GIDNUMBER, ID_MAX_PASSES, and RANDOM in the configuration file.

-G group,[...] --sgroup=group,[...]
A list of supplementary groups which the user is also a member of. Each group is
separated from the next by a comma, with no intervening whitespace. CPU will search
the directory for these groups, and if found, add the user to those groups. The
default is for the user to belong only to the initial group.

-k[skeleton_dir] --skel[=skeleton_dir]
This option is only useful is specified along with the -m option. If both are
specified, the contents of skeleton_dir will be copied to the users new home
directory. If skeleton_dir is specified it should have no whitespace between the
command line switch. If skeleton_dir is not specified, the value of SKEL_DIR as
specified in the configuration file will be used.

-m, --makehome
The user's home directory will be created if it does not exist. The files contained
in skeleton_dir will be copied to the home directory if the -k option is used. The
-k option is only valid in conjunction with the -m options. The default is to not
create the directory and to not copy any files.

-p[passwd] --password[=password]
The encrypted or unencrypted password. If no argument is given, the user is
prompted to enter a password. If CPU was compiled with libcrack, the password will
be checked for weakness. If the password is encrypted, hash should be the value of
the hash type that was used. If not specified at the command line or found in the
shadow file (if -S was used) * is used which should lock the account.

-s shell, --shell=shell
The name of the user's login shell. If not specified at the command line one can
specify it with the DEFAULT_SHELL configuration file option. This is not required
by RFC2307.

-u uid, --uid=uid
The numerical value of the user's ID. This value must be unique, the value must be
non-negative. If unspecified CPU will search for an unused UID. This behavior can
be adjusted by MAX_UIDNUMBER, MIN_UIDNUMBER, ID_MAX_PASSES, and RANDOM in the
configuration file.

-X script, --exec=script
After the user has successfully been added to the directory, execute this script.
The script is passed the login name. If this option is not supplied, the
configuration file will be checked for ADD_SCRIPT.

cpu usermod [options] login

       All options that apply to useradd also apply to usermod except for -k.

       -l login_name, --newusername=login_name
              The  name of the user will be changed from login to login_name. The LDAP attributes
              cn and uid are changed to login_name, the users rdn is also modified. If  specified
              in  conjunction with the -m switch, the users old home directory will be copied the
              the appropriate new location (see -d  switch for behavior).

       -L, --lock
              Lock the given user account

       -U, --unlock
              Unlock the given user account

cpu userdel [options] login

       The userdel command modifies the LDAP directory, deleting all entries that refer to login.
       The named user must exist. The options which apply to the userdel command are:

       -r, --removehome
              Files  in  the  user's home directory will be removed along with the home directory
              itself. The users mail spool is not deleted. Files located in  other  file  systems
              will have to be searched for and deleted manually.

       -X script, --exec=script
              After  the  user  has  successfully  been  removed from the directory, execute this
              script. The script is passed the login name. If this option is  not  supplied,  the
              configuration file will be checked for DEL_SCRIPT.

cpu groupadd [options] group

       The groupadd command creates a new group account using the values specified on the command
       line and the default values from the configuration file. The new  group  will  be  entered
       into the LDAP directory as needed. The options which apply to the groupadd command are

       -g gid, --gid=gid
              The  numerical value of the group's ID. This value should be unique. The value must
              be non-negative. A new gid can be generated by not  specifying  this  option.  This
              generation can be modified by changing the configuration file.

cpu groupmod [options] group

       The  groupmod  command modifies the group specified at the command line. The options which
       apply to the groupmod command are

       -g gid, --gid=gid
              The numerical value of the group's ID. This value should be unique. The value  must
              be non-negative.

       -n group_name, --newgroupname=group_name
              The  name  of  the  group will be changed from group to group_name.  The cn and rdn
              will also be modified.

cpu groupdel [options] group

       The groupdel command removes the group  specified  at  the  command  line  from  the  LDAP
       directory.

AUTHORS

       Blake Matheny <bmatheny@purdue.edu>

       The current version of this software is always available at http://cpu.sourceforge.net

BUGS

       To report a bug or problem, please e-mail:

       cpu-users@lists.sourceforge.net

TODO

       See TODO file that accompanied software. Please e-mail us with any additional suggestions.

                                         17 February 2003                             CPU-LDAP(8)