我刚刚在 Windows Azure 集群的虚拟机上安装了 Ubuntu 12.04。
默认情况下sudo不需要密码。
我想对所有sudo命令强制密码。
我该如何进行此更改？
以下是内容visudo：
#
# 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 secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
Defaults timestamp_timeout=0
# Host alias specification
# User alias specification
# Cmnd alias specification
# …