How to fix "'user' is not in sudoers" in CentOS

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本文介绍如何解决 CentOS 中用户不在 sudoers 文件的问题。首先确保已安装 nano 编辑器，然后使用 visudo 命令编辑 sudoers 文件，并将需要赋予 sudo 权限的用户名添加到文件中。

How to fix "'user' is not in sudoers" in CentOS

ObsidianBlade Registered

February 2012 in Fedora, RedHat, and CentOS

I just ran into this issue, and I'm sure I'm not going to be the last person to do so. This is my first tutorial, so I'm hoping I did everything the right way. It's a simple fix, so this is definitely one of the shortest how-to's ever.

First thing (for the way I do it) is to make sure you have nano. If not, log onto the root account and download nano before anything else:

sudo yum install nano

With that, it's time to edit the sudoers file to add yourself to it:

EDITOR=nano visudo

Now, navigate to the area where it says:

## Next comes the main part: which users can run what software on
## which machines (the sudoers file can be shared between multiple
## systems).
## Syntax:
##
##	user    MACHINE=COMMANDS
##
## The COMMANDS section may have other options added to it.
##
## Allow root to run any commands anywhere
root    ALL=(ALL)	ALL

## Allows members of the 'sys' group to run networking, software,
## service management apps and more.

And under where it says

root   ALL=(ALL)     ALL

place the name of the user that you want to give sudo rights to so that it looks something like this:

## Next comes the main part: which users can run what software on
## which machines (the sudoers file can be shared between multiple
## systems).
## Syntax:
##
##	user    MACHINE=COMMANDS
##
## The COMMANDS section may have other options added to it.
##
## Allow root to run any commands anywhere
root    ALL=(ALL)	ALL
Chris   ALL=(ALL)	ALL
## Allows members of the 'sys' group to run networking, software,
## service management apps and more.

ctrl-X to exit, y to agree to save it and enter to save the file with the name as it is and you're done!