我想允许这两种身份验证类型:公钥 + 谷歌身份验证器或密码 + 谷歌身份验证器。
我有以下内容sshd_config
:
AuthenticationMethods publickey,keyboard-interactive:pam password,keyboard-interactive:pam
UsePAM yes
ChallengeResponseAuthentication yes
PubkeyAuthentication yes
PasswordAuthentication yes
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而在/etc/pam.d/ssh
我取消注释
#@include common-auth and added auth required pam_google_authenticator.so
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在文件的末尾。
密钥 + 令牌路由仍然有效,但由于某种原因,我的密码总是被拒绝并显示“拒绝访问”消息。
我发现每当我设置UsePAM
为“是”时,密码验证都会失败。不知道为什么?
/etc/pam.d/sshd 的内容:(这个文件对我来说似乎很长,但它只是 ubuntu 的默认值,也许我可以缩短它?)
# PAM configuration for the Secure Shell service
# Standard Un*x authentication.
#@include common-auth
# Disallow non-root logins when /etc/nologin exists.
account required pam_nologin.so
# Uncomment and edit /etc/security/access.conf if you need to set complex
# access limits that are hard to express in sshd_config.
# account required pam_access.so
# Standard Un*x authorization.
@include common-account
# SELinux needs to be the first session rule. This ensures that any
# lingering context has been cleared. Without this it is possible that a
# module could execute code in the wrong domain.
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close
# Set the loginuid process attribute.
session required pam_loginuid.so
# Create a new session keyring.
session optional pam_keyinit.so force revoke
# Standard Un*x session setup and teardown.
@include common-session
# Print the message of the day upon successful login.
# This includes a dynamically generated part from /run/motd.dynamic
# and a static (admin-editable) part from /etc/motd.
session optional pam_motd.so motd=/run/motd.dynamic noupdate
session optional pam_motd.so # [1]
# Print the status of the user's mailbox upon successful login.
session optional pam_mail.so standard noenv # [1]
# Set up user limits from /etc/security/limits.conf.
session required pam_limits.so
# Read environment variables from /etc/environment and
# /etc/security/pam_env.conf.
session required pam_env.so # [1]
# In Debian 4.0 (etch), locale-related environment variables were moved to
# /etc/default/locale, so read that as well.
session required pam_env.so user_readenv=1 envfile=/etc/default/locale
# SELinux needs to intervene at login time to ensure that the process starts
# in the proper default security context. Only sessions which are intended
# to run in the user's context should be run after this.
session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open
# Standard Un*x password updating.
@include common-password
auth required pam_google_authenticator.so
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/etc/pam.d/common-auth 的内容:
#
# /etc/pam.d/common-auth - authentication settings common to all services
#
# This file is included from other service-specific PAM config files,
# and should contain a list of the authentication modules that define
# the central authentication scheme for use on the system
# (e.g., /etc/shadow, LDAP, Kerberos, etc.). The default is to use the
# traditional Unix authentication mechanisms.
#
# As of pam 1.0.1-6, this file is managed by pam-auth-update by default.
# To take advantage of this, it is recommended that you configure any
# local modules either before or after the default block, and use
# pam-auth-update to manage selection of other modules. See
# pam-auth-update(8) for details.
# here are the per-package modules (the "Primary" block)
auth [success=1 default=ignore] pam_unix.so nullok_secure
# here's the fallback if no module succeeds
auth requisite pam_deny.so
# prime the stack with a positive return value if there isn't one already;
# this avoids us returning an error just because nothing sets a success code
# since the modules above will each just jump around
auth required pam_permit.so
# and here are more per-package modules (the "Additional" block)
auth optional pam_cap.so
# end of pam-auth-update config
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我的问题实际上分解为:如何将“UsePAM yes”与“AuthenticationMethods password”一起使用。也许我应该删除这个问题并打开一个新问题?
我发现每当我设置
UsePAM
为yes时,密码验证就会失败。不知道为什么?
UsePAM
选项使身份验证方法password
使用与您要用于第二因素的相同的 PAM 模块。这就是它拒绝您的密码的原因。
这是对你的问题的回答,解释了“为什么”,但不是完整的解决方案“如何让它变得更好”。设置这个组合是很棘手的。我想学习如何简单而正确地做到这一点,但到目前为止确实有时间。但我对你的想法持开放态度:)
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