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Problemas com autenticação
12/01/2010, 09:16
Resposta: #1
Problemas com autenticação
Bom dia,

Estou desenvolvendo um sistema embarcado para arquitetura MIPS utilizando o Debian. Meu problema é que quando instalei os pacotes passwd e login, o sistema pede que eu troque a senha do meu usuário toda vez que eu logo... Alguém tem idéia do que pode ser?

Muito obrigado,

Att,
Felipe
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12/01/2010, 15:51
Resposta: #2
Re: Problemas com autenticação
Porque instalou esses pacotes?
Pode colar a mensagem aqui?
Tentou trocar a senha como ele pede?

Lucas Saliés Brum
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13/01/2010, 10:25
Resposta: #3
Re: Problemas com autenticação
Eu tive que instalar todos os pacotes Debian, pois a imagem que eu tinha para rodar no dispositivo só tinha um busybox sem vergonha e não rodava nada que eu tentava compilar. Eu estou usando o GTKterm e não consigo copiar muita coisa... Já troquei a senha várias vezes, mas nenhum erro aparece para eu colar aqui... Apenas toda vez que eu logo o sistema pede para eu trocar a senha de novo...
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13/01/2010, 10:41
Resposta: #4
Re: Problemas com autenticação
Existe o arquivo /etc/login.defs?
Pode colar ele aqui?

Lucas Saliés Brum
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13/01/2010, 14:24
Resposta: #5
Re: Problemas com autenticação
Código:
#
# /etc/login.defs - Configuration control definitions for the login package.
#
# Three items must be defined:  MAIL_DIR, ENV_SUPATH, and ENV_PATH.
# If unspecified, some arbitrary (and possibly incorrect) value will
# be assumed.  All other items are optional - if not specified then
# the described action or option will be inhibited.
#
# Comment lines (lines beginning with "#") and blank lines are ignored.
#
# Modified for Linux.  --marekm

# REQUIRED for useradd/userdel/usermod
#   Directory where mailboxes reside, _or_ name of file, relative to the
#   home directory.  If you _do_ define MAIL_DIR and MAIL_FILE,
#   MAIL_DIR takes precedence.
#
#   Essentially:
#      - MAIL_DIR defines the location of users mail spool files
#        (for mbox use) by appending the username to MAIL_DIR as defined
#        below.
#      - MAIL_FILE defines the location of the users mail spool files as the
#        fully-qualified filename obtained by prepending the user home
#        directory before $MAIL_FILE
#
# NOTE: This is no more used for setting up users MAIL environment variable
#       which is, starting from shadow 4.0.12-1 in Debian, entirely the
#       job of the pam_mail PAM modules
#       See default PAM configuration files provided for
#       login, su, etc.
#
# This is a temporary situation: setting these variables will soon
# move to /etc/default/useradd and the variables will then be
# no more supported
MAIL_DIR        /var/mail
#MAIL_FILE      .mail

#
# Enable logging and display of /var/log/faillog login failure info.
# This option conflicts with the pam_tally PAM module.
#
FAILLOG_ENAB        yes

#
# Enable display of unknown usernames when login failures are recorded.
#
# WARNING: Unknown usernames may become world readable.
# See #290803 and #298773 for details about how this could become a security
# concern
LOG_UNKFAIL_ENAB    no

#
# Enable logging of successful logins
#
LOG_OK_LOGINS        no

#
# 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, all su activity is logged to this file.
#
#SULOG_FILE    /var/log/sulog

#
# 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    /var/log/btmp

#
# 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

#
# 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

#
# *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/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
ENV_PATH    PATH=/usr/local/bin:/usr/bin:/bin:/usr/games

#
# 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.
#
# In Debian /usr/bin/bsd-write or similar programs are setgid tty
# However, the default and recommended value for TTYPERM is still 0600
# to not allow anyone to write to anyone else console or terminal

# Users can still allow other people to write them by issuing
# the "mesg y" command.

TTYGROUP    tty
TTYPERM        0600

#
# Login configuration initializations:
#
#    ERASECHAR    Terminal ERASE character ('\010' = backspace).
#    KILLCHAR    Terminal KILL character ('\025' = CTRL/U).
#    UMASK        Default "umask" value.
#
# The ERASECHAR and KILLCHAR are used only on System V machines.
#
# UMASK usage is discouraged because it catches only some classes of user
# entries to system, in fact only those made through login(1), while setting
# umask in shell rc file will catch also logins through su, cron, ssh etc.
#
# At the same time, using shell rc to set umask won't catch entries which use
# non-shell executables in place of login shell, like /usr/sbin/pppd for "ppp"
# user and alike.
#
# Therefore the use of pam_umask is recommended as the solution which
# catches all these cases on PAM-enabled systems.
#
# This avoids the confusion created by having the umask set
# in two different places -- in login.defs and shell rc files (i.e.
# /etc/profile).
#
# For discussion, see #314539 and #248150 as well as the thread starting at
# http://lists.debian.org/debian-devel/2005/06/msg01598.html
#
# Prefix these values with "0" to get octal, "0x" to get hexadecimal.
#
ERASECHAR    0177
KILLCHAR    025
# 022 is the "historical" value in Debian for UMASK when it was used
# 027, or even 077, could be considered better for privacy
# There is no One True Answer here : each sysadmin must make up his/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_WARN_AGE    Number of days warning given before a password expires.
#
PASS_MAX_DAYS    99999
PASS_MIN_DAYS    0
PASS_WARN_AGE    7

#
# Min/max values for automatic uid selection in useradd
#
UID_MIN             1000
UID_MAX            60000
# System accounts
#SYS_UID_MIN          100
#SYS_UID_MAX          999

#
# Min/max values for automatic gid selection in groupadd
#
GID_MIN              100
GID_MAX            60000
# System accounts
#SYS_GID_MIN          100
#SYS_GID_MAX          999

#
# Max number of login retries if password is bad. This will most likely be
# overriden by PAM, since the default pam_unix module has it's own built
# in of 3 retries. However, this is a safe fallback in case you are using
# an authentication module that does not enforce PAM_MAXTRIES.
#
LOGIN_RETRIES        5

#
# Max time in seconds for login
#
LOGIN_TIMEOUT        60

#
# 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

#
# Should login be allowed if we can't cd to the home directory?
# Default in no.
#
DEFAULT_HOME    yes

#
# 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

#
# This enables userdel to remove user groups if no members exist.
#
# Other former uses of this variable such as setting the umask when
# user==primary group are not used in PAM environments, thus in Debian
#
USERGROUPS_ENAB yes

#
# Instead of the real user shell, the program specified by this parameter
# will be launched, although its visible name (argv[0]) will be the shell's.
# The program may do whatever it wants (logging, additional authentification,
# banner, ...) before running the actual shell.
#
# FAKE_SHELL /bin/fakeshell

#
# 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.
#
# This variable is used by login and su.
#
#CONSOLE    /etc/consoles
#CONSOLE    console:tty01:tty02:tty03:tty04

#
# 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...
#
# This variable is used by login and su.
#
#CONSOLE_GROUPS        floppy:audio:cdrom

#
# 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".
#
# This variable is used by chpasswd, gpasswd and newusers.
#
# This variable is deprecated. You should use ENCRYPT_METHOD.
#
#MD5_CRYPT_ENAB    no

#
# 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: It is recommended to use a value consistent with
# the PAM modules configuration.
#
#ENCRYPT_METHOD DES

#
# Only used 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

################# OBSOLETED BY PAM ##############
#                        #
# These options are now handled by PAM. Please    #
# edit the appropriate file in /etc/pam.d/ to    #
# enable the equivelants of them.
#
###############

#MOTD_FILE
#DIALUPS_CHECK_ENAB
#LASTLOG_ENAB
#MAIL_CHECK_ENAB
#OBSCURE_CHECKS_ENAB
#PORTTIME_CHECKS_ENAB
#SU_WHEEL_ONLY
#CRACKLIB_DICTPATH
#PASS_CHANGE_TRIES
#PASS_ALWAYS_WARN
#ENVIRON_FILE
#NOLOGINS_FILE
#ISSUE_FILE
#PASS_MIN_LEN
#PASS_MAX_LEN
#ULIMIT
#ENV_HZ
#CHFN_AUTH
#CHSH_AUTH
#FAIL_DELAY

################# OBSOLETED #######################
#                          #
# These options are no more handled by shadow.    #
#                                                 #
# Shadow utilities will display a warning if they #
# still appear.                                   #
#                                                 #
###################################################

# CLOSE_SESSIONS
# LOGIN_STRING
# NO_PASSWORD_CONSOLE
# QMAIL_DIR
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