sudo不能使用解决
sudo不能使用解决
sudo不能使用解决
今天装完系统发现我的sudo命令不能正常使用,大致情况如下:
.......
We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:
#1) Respect the privacy of others.
#2) Think before you type.
#3) With great power comes great responsibility.
......
后来在网上查找了相关资料,具体解决方法如下:
1、用su - 登入root模式
2、改变文件sudoers的权限为可写:chmod 740 /etc/sudoers
3、用vi打开sudoers文件:vi /etc/sudoers
4、在root ALL=(ALL) ALL处回车,另起一行写上:username ALL=(ALL) ALL
5、保存退出
6、把sudoers的权限改为默认的440:chmod 440 /etc/sudoers
7、退出root到普通用户模式,使用sudo测试,通过!
注:如果想要在使用sudo时不输入密码,可以把4处改为:
username ALL=NOPASSWD:ALL
完整样例:
# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
#
Defaults env_reset
# Host alias specification
# User alias specification
# Cmnd alias specification
# User privilege specification
root ALL=(ALL) ALL
#tiger ALL=(ALL) ALL
tiger ALL=NOPASSWD:ALL
# Uncomment to allow members of group sudo to not need a password
# (Note that later entries override this, so you might need to move
# it further down)
# %sudo ALL=NOPASSWD: ALL
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