adduser.conf(5) adduser.conf(5)
NAME
/etc/adduser.conf - configuration file for adduser(8) and addgroup(8).
DESCRIPTION
The file /etc/adduser.conf contains defaults for the programs
adduser(8) , addgroup(8) , deluser(8) and delgroup(8). Each line holds
a single value pair in the form option = value. Double or single
quotes are allowed around the value, as is whitespace around the equals
sign. Comment lines must have a hash sign (#) in the first line.
The valid configuration options are:
DSHELL The login shell to be used for all new users. Defaults to
/bin/bash.
DHOME The directory in which new home directories should be created.
Defaults to /home.
GROUPHOMES
If this is set to yes, the home directories will be created as
/home/[groupname]/user. Defaults to no.
LETTERHOMES
If this is set to yes, then the home directories created will
have an extra directory inserted which is the first letter of
the loginname. For example: /home/u/user. Defaults to no.
SKEL The directory from which skeletal user configuration files
should be copied. Defaults to /etc/skel.
FIRST_SYSTEM_UID and LAST_SYSTEM_UID
specify an inclusive range of UIDs from which system UIDs can be
dynamically allocated. Default to 100 - 999. Please note that
system software, such as the users allocated by the base-passwd
package, may assume that UIDs less than 100 are unallocated.
FIRST_UID and LAST_UID
specify an inclusive range of UIDs from which normal user's UIDs
can be dynamically allocated. Default to 1000 - 29999.
USERGROUPS
If this is set to yes, then each created user will be given
their own group to use. If this is no, then each created user
will be placed in the group whose GID is USERS_GID (see below).
The default is yes.
USERS_GID
If USERGROUPS is no, then USERS_GID is the GID given to all
newly-created users. The default value is 100.
DIR_MODE
If set to a valid value (e.g. 0755 or 755), directories created
will have the specified permissions. Otherwise 0755 is used as
default.
SETGID_HOME
If this is set to yes, then home directories for users with
their own group ( USERGROUPS=yes ) will have the setgid bit set.
This was the default setting for adduser versions << 3.13.
Unfortunately it has some bad side effects, so we no longer do
this per default. If you want it nevertheless you can still
activate it here.
QUOTAUSER
If set to a nonempty value, new users will have quotas copied
from that user. The default is empty.
NAME_REGEX
User names are checked against this regular expression. If the
name doesn't match this regexp, user creation is refused unless
--force-badname is set. With --force-badname set, only weak
checks are performed. The default is the most conservative ^[a-
z][-a-z0-9]*$.
SKEL_IGNORE_REGEX
Files in /etc/skel/ are checked against this regex, and not
copied to the newly created home directory if they match. This
is by default set to the regular expression matching files left
over from unmerged config files (dpkg-(old|new|dist)).
ADD_EXTRA_GROUPS
Setting this to something other than 0 (the default) will cause
adduser to add newly created non-system users to the list of
groups defined by EXTRA_GROUPS (below).
EXTRA_GROUPS
This is the list of groups that new non-system users will be
added to. By default, this list is 'dialout cdrom floppy audio
src video lp users'
FILES
/etc/adduser.conf
SEE ALSO
adduser(8), addgroup(8), deluser(8), delgroup(8)
Debian GNU/Linux Version 3.102 adduser.conf(5)
