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</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fetc%2F'>etc</a>/</p><hr><h3>✏️ Editing: login.defs</h3>  
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# /etc/login.defs - Configuration control definitions for the shadow package.
#
#	$Id$
#

#
# Delay in seconds before being allowed another attempt after a login failure
# Note: When PAM is used, some modules may enforce a minimum delay (e.g.
#       pam_unix(8) enforces a 2s delay)
#
FAIL_DELAY		3

#
# Enable logging and display of /var/log/faillog login(1) failure info.
#
FAILLOG_ENAB		yes

#
# Enable display of unknown usernames when login(1) 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(1) time info.
#
LASTLOG_ENAB		yes

#
# Limit the highest user ID number for which the lastlog entries should
# be updated.
#
# No LASTLOG_UID_MAX means that there is no user ID limit for writing
# lastlog entries.
#
#LASTLOG_UID_MAX

#
# Enable checking and display of mailbox status upon login.
#
# Disable if the shell startup files already check for mail
# (&quot;mailx -e&quot; or equivalent).
#
MAIL_CHECK_ENAB		yes

#
# Enable additional checks upon password changes.
#
OBSCURE_CHECKS_ENAB	yes

#
# Enable checking of time restrictions specified in /etc/porttime.
#
PORTTIME_CHECKS_ENAB	yes

#
# Enable setting of ulimit, umask, and niceness from passwd(5) gecos field.
#
QUOTAS_ENAB		yes

#
# Enable &quot;syslog&quot; logging of su(1) activity - in addition to sulog file logging.
# SYSLOG_SG_ENAB does the same for newgrp(1) and sg(1).
#
SYSLOG_SU_ENAB		yes
SYSLOG_SG_ENAB		yes

#
# If defined, either full pathname of a file containing device names or
# a &quot;:&quot; delimited list of device names.  Root logins will be allowed only
# from these devices.
#
CONSOLE		/etc/securetty
#CONSOLE	console:tty01:tty02:tty03:tty04

#
# If defined, all su(1) activity is logged to this file.
#
#SULOG_FILE	/var/log/sulog

#
# If defined, &quot;:&quot; delimited list of &quot;message of the day&quot; files to
# be displayed upon login.
#
MOTD_FILE	/etc/motd
#MOTD_FILE	/etc/motd:/usr/lib/news/news-motd

#
# If defined, this file will be output before each login(1) 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 similar to &quot;vt100  tty01&quot;.
#
#TTYTYPE_FILE	/etc/ttytype

#
# If defined, login(1) failures will be logged here in a utmp format.
# last(1), when invoked as lastb(1), will read /var/log/btmp, so...
#
FTMP_FILE	/var/log/btmp

#
# If defined, name of file whose presence will inhibit non-root
# logins.  The content of this file should be a message indicating
# why logins are inhibited.
#
NOLOGINS_FILE	/etc/nologin

#
# If defined, the command name to display when running &quot;su -&quot;.  For
# example, if this is defined as &quot;su&quot; then ps(1) will display the
# command as &quot;-su&quot;.  If not defined, then ps(1) will display the
# name of the shell actually being run, e.g. something like &quot;-sh&quot;.
#
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/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&#039;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&#039;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		HZ=100
# For Linux/Alpha...
#ENV_HZ		HZ=1024

#
# *REQUIRED*  The default PATH settings, for superuser and normal users.
#
# (they are minimal, add the rest in the shell startup files)
ENV_SUPATH	PATH=/usr/sbin:/usr/bin
ENV_PATH	PATH=/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(1) program which is &quot;setgid&quot; to a special group
# which owns the terminals, define TTYGROUP as the number of such group
# and TTYPERM as 0620.  Otherwise leave TTYGROUP commented out and
# set TTYPERM to either 622 or 600.
#
TTYGROUP	tty
TTYPERM		0600

#
# Login configuration initializations:
#
#	ERASECHAR	Terminal ERASE character (&#039;\010&#039; = backspace).
#	KILLCHAR	Terminal KILL character (&#039;\025&#039; = CTRL/U).
#	ULIMIT		Default &quot;ulimit&quot; 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 &quot;0&quot; to get octal, &quot;0x&quot; to get hexadecimal.
#
ERASECHAR	0177
KILLCHAR	025
#ULIMIT		2097152

# Default initial &quot;umask&quot; value used by login(1) on non-PAM enabled systems.
# Default &quot;umask&quot; value for pam_umask(8) on PAM enabled systems.
# UMASK is also used by useradd(8) and newusers(8) to set the mode for new
# home directories if HOME_MODE is not set.
# 022 is the default value, but 027, or even 077, could be considered
# for increased privacy. There is no One True Answer here: each sysadmin
# must make up their mind.
UMASK		022

# HOME_MODE is used by useradd(8) and newusers(8) to set the mode for new
# home directories.
# If HOME_MODE is not set, the value of UMASK is used to create the mode.
#HOME_MODE	0700

#
# 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	5
PASS_WARN_AGE	7

#
# If &quot;yes&quot;, the user must be listed as a member of the first gid 0 group
# in /etc/group (called &quot;root&quot; on most Linux systems) to be able to &quot;su&quot;
# to uid 0 accounts.  If the group doesn&#039;t exist or is empty, no one
# will be able to &quot;su&quot; to uid 0.
#
SU_WHEEL_ONLY	no

#
# Min/max values for automatic uid selection in useradd(8)
#
UID_MIN			 1000
UID_MAX			60000
# System accounts
SYS_UID_MIN		  101
SYS_UID_MAX		  999
# Extra per user uids
SUB_UID_MIN		   100000
SUB_UID_MAX		600100000
SUB_UID_COUNT		    65536

#
# Min/max values for automatic gid selection in groupadd(8)
#
GID_MIN			 1000
GID_MAX			60000
# System accounts
SYS_GID_MIN		  101
SYS_GID_MAX		  999
# Extra per user group ids
SUB_GID_MIN		   100000
SUB_GID_MAX		600100000
SUB_GID_COUNT		    65536

#
# Max number of login(1) retries if password is bad
#
LOGIN_RETRIES		5

#
# Max time in seconds for login(1)
#
LOGIN_TIMEOUT		60

#
# Maximum number of attempts to change password if rejected (too easy)
#
PASS_CHANGE_TRIES	5

#
# Warn about weak passwords (but still allow them) if you are root.
#
PASS_ALWAYS_WARN	yes

#
# Number of significant characters in the password for crypt().
# Default is 8, don&#039;t change unless your crypt() is better.
# Ignored if MD5_CRYPT_ENAB set to &quot;yes&quot;.
#
#PASS_MAX_LEN		8

#
# Require password before chfn(1)/chsh(1) can make any changes.
#
CHFN_AUTH		yes

#
# Which fields may be changed by regular users using chfn(1) - use
# any combination of letters &quot;frwh&quot; (full name, room number, work
# phone, home phone).  If not defined, no changes are allowed.
# For backward compatibility, &quot;yes&quot; = &quot;rwh&quot; and &quot;no&quot; = &quot;frwh&quot;.
#
CHFN_RESTRICT		rwh

#
# Password prompt (%s will be replaced by user name).
#
# XXX - it doesn&#039;t work correctly yet, for now leave it commented out
# to use the default which is just &quot;Password: &quot;.
#LOGIN_STRING		&quot;%s&#039;s Password: &quot;

#
# Only works if compiled with MD5_CRYPT defined:
# If set to &quot;yes&quot;, 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 &quot;no&quot; if you need to copy encrypted passwords to other systems
# which don&#039;t understand the new algorithm.  Default is &quot;no&quot;.
#
# 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 instead.
#
#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 BCRYPT, BCRYPT-based algorithm will be used for encrypting password
# If set to YESCRYPT, YESCRYPT-based algorithm will be used for encrypting password
# If set to DES, DES-based algorithm will be used for encrypting password (default)
# MD5 and DES should not be used for new hashes, see crypt(5) for recommendations.
# 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 YESCRYPT

#
# 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-force the password.
# However, more CPU resources will be needed to authenticate users if
# this value is increased.
#
# If not specified, the libc will choose the default number of rounds (5000),
# which is orders of magnitude too low for modern hardware.
# The values must be within the 1000-999999999 range.
# If only one of the MIN or MAX values is set, then this value will be used.
# If MIN &gt; MAX, the highest value will be used.
#
#SHA_CRYPT_MIN_ROUNDS 5000
#SHA_CRYPT_MAX_ROUNDS 5000

#
# Only works if ENCRYPT_METHOD is set to BCRYPT.
#
# Define the number of BCRYPT rounds.
# With a lot of rounds, it is more difficult to brute-force the password.
# However, more CPU resources will be needed to authenticate users if
# this value is increased.
#
# If not specified, 13 rounds will be attempted.
# If only one of the MIN or MAX values is set, then this value will be used.
# If MIN &gt; MAX, the highest value will be used.
#
#BCRYPT_MIN_ROUNDS 13
#BCRYPT_MAX_ROUNDS 13

#
# Only works if ENCRYPT_METHOD is set to YESCRYPT.
#
# Define the YESCRYPT cost factor.
# With a higher cost factor, it is more difficult to brute-force the password.
# However, more CPU time and more memory will be needed to authenticate users
# if this value is increased.
#
# If not specified, a cost factor of 5 will be used.
# The value must be within the 1-11 range.
#
#YESCRYPT_COST_FACTOR 5

#
# List of groups to add to the user&#039;s supplementary group set
# when logging in from 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 from 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&#039;t cd to the home directory?
# Default is no.
#
DEFAULT_HOME	yes

#
# The pwck(8) utility emits a warning for any system account with a home
# directory that does not exist.  Some system accounts intentionally do
# not have a home directory.  Such accounts may have this string as
# their home directory in /etc/passwd to avoid a spurious warning.
#
NONEXISTENT	/nonexistent

#
# 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	/etc/environment

#
# 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 -&gt; 002, 077 -&gt; 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(8) to remove user groups if no members exist.
#
USERGROUPS_ENAB yes

#
# If set to a non-zero number, the shadow utilities will make sure that
# groups never have more than this number of users on one line.
# This permits 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(8) 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(8)
# command-line.
#
#CREATE_HOME     yes

#
# Force use shadow, even if shadow passwd &amp; shadow group files are
# missing.
#
#FORCE_SHADOW    yes

#
# Allow newuidmap and newgidmap when running under an alternative
# primary group.
#
#GRANT_AUX_GROUP_SUBIDS yes

#
# Prevents an empty password field to be interpreted as &quot;no authentication
# required&quot;.
# Set to &quot;yes&quot; to prevent for all accounts
# Set to &quot;superuser&quot; to prevent for UID 0 / root (default)
# Set to &quot;no&quot; to not prevent for any account (dangerous, historical default)
PREVENT_NO_AUTH superuser

#
# Select the HMAC cryptography algorithm.
# Used in pam_timestamp module to calculate the keyed-hash message
# authentication code.
#
# Note: It is recommended to check hmac(3) to see the possible algorithms
# that are available in your system.
#
#HMAC_CRYPTO_ALGO SHA512
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