主页 / user-1046848

Numppa's questions

Martin Hope
Numppa
Asked: 2019-06-08 04:16:32 +0800 CST
  • 7

所以，这是我无法理解的事情。我知道如何配置sudo以保持所有 envs 完好无损，我现在很困惑是什么导致了 Ubuntu 和 Debian 上的不同行为。

所以在 Debian 中我配置了 sudoers

~# cat /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults    env_reset
Defaults    mail_badpass
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL

# Allow members of group sudo to execute any command
%sudo    ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d

我设置了一些变量/etc/environment，重新登录并测试：

~# sudo sh -c 'echo $FOO'

环境不存在，因为它不应该（至少 AFAIK），因为 sudoers 配置为重置环境。

在 Ubuntu 上做同样的事情：

~# cat /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults    env_reset
Defaults    mail_badpass
Defaults    secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d

注意：它具有相同的env_reset设置。但：

~# sudo sh -c 'echo $FOO'
bar

所以让我困惑的问题是：为什么即使env_reset设置了并且我的 Ubuntu 或 Debian 配置都没有env_keep设置，为什么它在 Ubuntu 上也能正常工作？

linux sudo