允许多个用户组无需密码即可“su”给多个其他用户

允许多个用户组无需密码即可“su”给多个其他用户

我希望特定的用户组能够作为特定用户使用 su 命令。

例子)

团体 用户
allowsu_aa aa
allowsu_bb bb
allowsu_cc cc

所以我将以下内容添加到/etc/pam.d/su文件中。

auth            [success=2 default=ignore]        pam_succeed_if.so user = aa
auth            [success=2 default=ignore]        pam_succeed_if.so user = bb
auth            [success=2 default=3]             pam_succeed_if.so user = cc
auth            [success=done new_authtok_reqd=done default=2]      pam_succeed_if.so use_uid user ingroup allowsu_aa
auth            [success=done new_authtok_reqd=done default=1]      pam_succeed_if.so use_uid user ingroup allowsu_bb
auth            [success=done new_authtok_reqd=done default=ignore]      pam_succeed_if.so use_uid user ingroup allowsu_cc

但它并没有按照我的意愿工作。

我应该如何修复它?

答案1

这里有一个很好的描述如何做到这一点:https://www.howtoing.com/switch-user-account-without-password/ 我测试成功了(Rocky Linux 9)。 PAM 相当……复杂(对我来说)。您还必须注意配置行在文件中的位置。当我的用户是 test_group 的成员时,我可以无需密码切换到 test_user

cat /etc/pam.d/su
#%PAM-1.0
auth        required    pam_env.so
auth        sufficient  pam_rootok.so
##### START 
auth       [success=ignore default=1] pam_succeed_if.so user = test_user
auth       sufficient   pam_succeed_if.so use_uid user ingroup test_group
##### END
# Uncomment the following line to implicitly trust users in the "wheel" group.
#auth       sufficient  pam_wheel.so trust use_uid
# Uncomment the following line to require a user to be in the "wheel" group.
#auth       required    pam_wheel.so use_uid
auth        substack    system-auth
auth        include     postlogin
account     sufficient  pam_succeed_if.so uid = 0 use_uid quiet
account     include     system-auth
password    include     system-auth
session     include     system-auth
session     include     postlogin
session     optional    pam_xauth.so

希望有帮助。

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