MKUSER(C) XENIX System V MKUSER(C)
Name
mkuser - Adds a login ID to the system.
Syntax
/etc/mkuser
Description
mkuser is used to add more user login IDs to the system. It
is the preferred method for adding new users to the system,
since it handles all directory creation and password file
update. To add a new user to the system, mkuser requires
five pieces of information: the login name, the initial
password, the group identification, the user's login shell
and an optional comment string for the password file. It
also allows the new user to be assigned to a group if
required, although in most cases a default group is
suitable. The program prompts for these five items and
validates the given data. The login name is checked against
certain criteria (i.e., it must be at least three characters
and begin with a lowercase letter). The password must
follow standard XENIX conventions, see passwd(C). The
password file comment field can be up to 35 characters of
information.
mkuser takes some of its parameters from a default file,
/etc/default/mkuser . Currently, one may set the root path
of home directories. An example default file is:
HOME=/usr
HOMEMODE=0755
PROFMODE=0640
Where HOME entry is the user's home directory, the HOMEMODE
entry is the permissions for the user's home directory, and
the PROFMODE entry is the permissions for the .login,
.profile and .cshrc files.
This file can be edited (by the super-user) to change this
default. There are five other files in the directory
/usr/lib which may also be altered to suit local options.
They are mkuser.help which is the introductory explanation
given by mkuser on startup, mkuser.mail which is the initial
mail message sent to new users, mkuser.prof, the standard
.profile file given to new sh and rsh shell users,
mkuser.login, the standard .login file given to new csh
users, and mkuser.cshrc, the standard .cshrc file given to
new csh users.
mkuser prompts for the shell type to assign to the new user.
The shell types available are standard (Bourne) sh (option
1), visual shell vsh (option 2), c-shell csh (option 3),
restricted rsh (option 4), and uucp login (option 5).
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MKUSER(C) XENIX System V MKUSER(C)mkuser allocates user IDs starting at 200, or the largest
number used in the password file. The default group ID for
new users is 50. The minimum group ID allowed for user
accounts is 50. The program prompts the operator for an
optional group specification. This can either be a numeric
group ID, or a group name. If the group exists, the user is
added to it. If it does not exist, a new entry in /etc/group
is created. A new group cannot have a numeric ID less than
51. If a new group is to be created, and the operator only
specifies the group name, a free group ID is assigned.
Alternatively, the operator can specify the group ID too.
mkuser can only be executed by the super-user.
The minimum length of a legal password, and the minimum and
maximum number of weeks used in password aging are specified
in /etc/default/passwd by the variables PASSLENGTH, MINWEEKS
and MAXWEEKS. For example, these variables might be set as
follows:
PASSLENGTH=6
MINWEEKS=2
MAXWEEKS=6
Files
/etc/passwd
/usr/spool/mail/username
/etc/default/mkuser
/etc/default/passwd
/usr/lib/mkuser/mkuser.cshrc
/usr/lib/mkuser/mkuser.help
/usr/lib/mkuser/mkuser.login
/usr/lib/mkuser/mkuser.prof
/usr/lib/mkuser/mkuser.mail
See Also
chmod(C), group(M), passwd(C), pwadmin(C), rmuser(C)
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