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- #
- # /etc/login.defs - Configuration control definitions for the shadow package.
- #
- # $Id: login.defs 3189 2010-03-26 11:53:06Z nekral-guest $
- #
-
- #
- # Delay in seconds before being allowed another attempt after a login failure
- # Note: When PAM is used, some modules may enfore a minimal delay (e.g.
- # pam_unix enforces a 2s delay)
- #
- FAIL_DELAY 3
-
- #
- # Enable logging and display of /var/log/faillog login failure info.
- #
- #FAILLOG_ENAB
-
- #
- # Enable display of unknown usernames when login failures are recorded.
- #
- LOG_UNKFAIL_ENAB no
-
- #
- # Enable logging of successful logins
- #
- LOG_OK_LOGINS no
-
- #
- # Enable logging and display of /var/log/lastlog login time info.
- #
- #LASTLOG_ENAB
-
- #
- # Enable checking and display of mailbox status upon login.
- #
- # Disable if the shell startup files already check for mail
- # ("mailx -e" or equivalent).
- #
- #MAIL_CHECK_ENAB
-
- #
- # Enable additional checks upon password changes.
- #
- #OBSCURE_CHECKS_ENAB
-
- #
- # Enable checking of time restrictions specified in /etc/porttime.
- #
- #PORTTIME_CHECKS_ENAB
-
- #
- # Enable setting of ulimit, umask, and niceness from passwd gecos field.
- #
- #QUOTAS_ENAB
-
- #
- # Enable "syslog" logging of su activity - in addition to sulog file logging.
- # SYSLOG_SG_ENAB does the same for newgrp and sg.
- #
- SYSLOG_SU_ENAB yes
- SYSLOG_SG_ENAB yes
-
- #
- # If defined, either full pathname of a file containing device names or
- # a ":" delimited list of device names. Root logins will be allowed only
- # upon these devices.
- #
- CONSOLE /etc/securetty
- #CONSOLE console:tty01:tty02:tty03:tty04
-
- #
- # If defined, all su activity is logged to this file.
- #
- #SULOG_FILE /var/log/sulog
-
- #
- # If defined, ":" delimited list of "message of the day" files to
- # be displayed upon login.
- #
- #MOTD_FILE
- #MOTD_FILE
-
- #
- # If defined, this file will be output before each login prompt.
- #
- #ISSUE_FILE /etc/issue
-
- #
- # If defined, file which maps tty line to TERM environment parameter.
- # Each line of the file is in a format something like "vt100 tty01".
- #
- #TTYTYPE_FILE /etc/ttytype
-
- #
- # If defined, login failures will be logged here in a utmp format.
- # last, when invoked as lastb, will read /var/log/btmp, so...
- #
- #FTMP_FILE
-
- #
- # If defined, name of file whose presence which will inhibit non-root
- # logins. The contents of this file should be a message indicating
- # why logins are inhibited.
- #
- #NOLOGINS_FILE
-
- #
- # If defined, the command name to display when running "su -". For
- # example, if this is defined as "su" then a "ps" will display the
- # command is "-su". If not defined, then "ps" would display the
- # name of the shell actually being run, e.g. something like "-sh".
- #
- SU_NAME su
-
- #
- # *REQUIRED*
- # Directory where mailboxes reside, _or_ name of file, relative to the
- # home directory. If you _do_ define both, MAIL_DIR takes precedence.
- #
- MAIL_DIR /var/spool/mail
- #MAIL_FILE .mail
-
- #
- # If defined, file which inhibits all the usual chatter during the login
- # sequence. If a full pathname, then hushed mode will be enabled if the
- # user's name or shell are found in the file. If not a full pathname, then
- # hushed mode will be enabled if the file exists in the user's home directory.
- #
- HUSHLOGIN_FILE .hushlogin
- #HUSHLOGIN_FILE /etc/hushlogins
-
- #
- # If defined, either a TZ environment parameter spec or the
- # fully-rooted pathname of a file containing such a spec.
- #
- #ENV_TZ TZ=CST6CDT
- #ENV_TZ /etc/tzname
-
- #
- # If defined, an HZ environment parameter spec.
- #
- # for Linux/x86
- #ENV_HZ
- # For Linux/Alpha...
- #ENV_HZ
-
- #
- # *REQUIRED* The default PATH settings, for superuser and normal users.
- #
- # (they are minimal, add the rest in the shell startup files)
- ENV_SUPATH PATH=/sbin:/bin:/usr/sbin:/usr/bin
- ENV_PATH PATH=/bin:/usr/bin
-
- #
- # Terminal permissions
- #
- # TTYGROUP Login tty will be assigned this group ownership.
- # TTYPERM Login tty will be set to this permission.
- #
- # If you have a "write" program which is "setgid" to a special group
- # which owns the terminals, define TTYGROUP to the group number and
- # TTYPERM to 0620. Otherwise leave TTYGROUP commented out and assign
- # TTYPERM to either 622 or 600.
- #
- TTYGROUP tty
- TTYPERM 0600
-
- #
- # Login configuration initializations:
- #
- # ERASECHAR Terminal ERASE character ('\010' = backspace).
- # KILLCHAR Terminal KILL character ('\025' = CTRL/U).
- # ULIMIT Default "ulimit" value.
- #
- # The ERASECHAR and KILLCHAR are used only on System V machines.
- # The ULIMIT is used only if the system supports it.
- # (now it works with setrlimit too; ulimit is in 512-byte units)
- #
- # Prefix these values with "0" to get octal, "0x" to get hexadecimal.
- #
- ERASECHAR 0177
- KILLCHAR 025
- #ULIMIT 2097152
-
- # Default initial "umask" value used by login on non-PAM enabled systems.
- # Default "umask" value for pam_umask on PAM enabled systems.
- # UMASK is also used by useradd and newusers to set the mode of new home
- # directories.
- # 022 is the default value, but 027, or even 077, could be considered
- # better for privacy. There is no One True Answer here: each sysadmin
- # must make up her mind.
- UMASK 022
-
- #
- # Password aging controls:
- #
- # PASS_MAX_DAYS Maximum number of days a password may be used.
- # PASS_MIN_DAYS Minimum number of days allowed between password changes.
- # PASS_MIN_LEN Minimum acceptable password length.
- # PASS_WARN_AGE Number of days warning given before a password expires.
- #
- PASS_MAX_DAYS 99999
- PASS_MIN_DAYS 0
- #PASS_MIN_LEN
- PASS_WARN_AGE 7
-
- #
- # If "yes", the user must be listed as a member of the first gid 0 group
- # in /etc/group (called "root" on most Linux systems) to be able to "su"
- # to uid 0 accounts. If the group doesn't exist or is empty, no one
- # will be able to "su" to uid 0.
- #
- #SU_WHEEL_ONLY
-
- #
- # If compiled with cracklib support, where are the dictionaries
- #
- #CRACKLIB_DICTPATH
-
- #
- # Min/max values for automatic uid selection in useradd
- #
- UID_MIN 1000
- UID_MAX 60000
- # System accounts
- SYS_UID_MIN 101
- SYS_UID_MAX 999
-
- #
- # Min/max values for automatic gid selection in groupadd
- #
- GID_MIN 1000
- GID_MAX 60000
- # System accounts
- SYS_GID_MIN 101
- SYS_GID_MAX 999
-
- #
- # Max number of login retries if password is bad
- #
- LOGIN_RETRIES 5
-
- #
- # Max time in seconds for login
- #
- LOGIN_TIMEOUT 60
-
- #
- # Maximum number of attempts to change password if rejected (too easy)
- #
- #PASS_CHANGE_TRIES
-
- #
- # Warn about weak passwords (but still allow them) if you are root.
- #
- #PASS_ALWAYS_WARN
-
- #
- # Number of significant characters in the password for crypt().
- # Default is 8, don't change unless your crypt() is better.
- # Ignored if MD5_CRYPT_ENAB set to "yes".
- #
- #PASS_MAX_LEN 8
-
- #
- # Require password before chfn/chsh can make any changes.
- #
- #CHFN_AUTH
-
- #
- # Which fields may be changed by regular users using chfn - use
- # any combination of letters "frwh" (full name, room number, work
- # phone, home phone). If not defined, no changes are allowed.
- # For backward compatibility, "yes" = "rwh" and "no" = "frwh".
- #
- CHFN_RESTRICT rwh
-
- #
- # Password prompt (%s will be replaced by user name).
- #
- # XXX - it doesn't work correctly yet, for now leave it commented out
- # to use the default which is just "Password: ".
- #LOGIN_STRING "%s's Password: "
-
- #
- # Only works if compiled with MD5_CRYPT defined:
- # If set to "yes", new passwords will be encrypted using the MD5-based
- # algorithm compatible with the one used by recent releases of FreeBSD.
- # It supports passwords of unlimited length and longer salt strings.
- # Set to "no" if you need to copy encrypted passwords to other systems
- # which don't understand the new algorithm. Default is "no".
- #
- # Note: If you use PAM, it is recommended to use a value consistent with
- # the PAM modules configuration.
- #
- # This variable is deprecated. You should use ENCRYPT_METHOD.
- #
- #MD5_CRYPT_ENAB no
-
- #
- # Only works if compiled with ENCRYPTMETHOD_SELECT defined:
- # If set to MD5 , MD5-based algorithm will be used for encrypting password
- # If set to SHA256, SHA256-based algorithm will be used for encrypting password
- # If set to SHA512, SHA512-based algorithm will be used for encrypting password
- # If set to DES, DES-based algorithm will be used for encrypting password (default)
- # Overrides the MD5_CRYPT_ENAB option
- #
- # Note: If you use PAM, it is recommended to use a value consistent with
- # the PAM modules configuration.
- #
- #ENCRYPT_METHOD DES
-
- #
- # Only works if ENCRYPT_METHOD is set to SHA256 or SHA512.
- #
- # Define the number of SHA rounds.
- # With a lot of rounds, it is more difficult to brute forcing the password.
- # But note also that it more CPU resources will be needed to authenticate
- # users.
- #
- # If not specified, the libc will choose the default number of rounds (5000).
- # The values must be inside the 1000-999999999 range.
- # If only one of the MIN or MAX values is set, then this value will be used.
- # If MIN > MAX, the highest value will be used.
- #
- # SHA_CRYPT_MIN_ROUNDS 5000
- # SHA_CRYPT_MAX_ROUNDS 5000
-
- #
- # List of groups to add to the user's supplementary group set
- # when logging in on the console (as determined by the CONSOLE
- # setting). Default is none.
- #
- # Use with caution - it is possible for users to gain permanent
- # access to these groups, even when not logged in on the console.
- # How to do it is left as an exercise for the reader...
- #
- #CONSOLE_GROUPS floppy:audio:cdrom
-
- #
- # Should login be allowed if we can't cd to the home directory?
- # Default in no.
- #
- DEFAULT_HOME yes
-
- #
- # If this file exists and is readable, login environment will be
- # read from it. Every line should be in the form name=value.
- #
- #ENVIRON_FILE
-
- #
- # If defined, this command is run when removing a user.
- # It should remove any at/cron/print jobs etc. owned by
- # the user to be removed (passed as the first argument).
- #
- #USERDEL_CMD /usr/sbin/userdel_local
-
- #
- # Enable setting of the umask group bits to be the same as owner bits
- # (examples: 022 -> 002, 077 -> 007) for non-root users, if the uid is
- # the same as gid, and username is the same as the primary group name.
- #
- # This also enables userdel to remove user groups if no members exist.
- #
- USERGROUPS_ENAB yes
-
- #
- # If set to a non-nul number, the shadow utilities will make sure that
- # groups never have more than this number of users on one line.
- # This permit to support split groups (groups split into multiple lines,
- # with the same group ID, to avoid limitation of the line length in the
- # group file).
- #
- # 0 is the default value and disables this feature.
- #
- #MAX_MEMBERS_PER_GROUP 0
-
- #
- # If useradd should create home directories for users by default (non
- # system users only)
- # This option is overridden with the -M or -m flags on the useradd command
- # line.
- #
- #CREATE_HOME yes
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