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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (How To Grant And Remove Sudo Privileges To Users On Ubuntu)
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[#]: via: (https://www.ostechnix.com/how-to-grant-and-remove-sudo-privileges-to-users-on-ubuntu/)
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[#]: author: (SK https://www.ostechnix.com/author/sk/)
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How To Grant And Remove Sudo Privileges To Users On Ubuntu
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======
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As you know already, the user can perform any administrative tasks with sudo privileges on Ubuntu systems. When creating a new users on your Linux box, they can’t do any administrative tasks until you make them to be a member of **‘sudo’ group**. In this brief tutorial, we explain how to add a regular user to sudo group and remove the given privileges to make it as just a normal user.
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**Grant Sudo Privileges To A regular User On Linux**
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Usually, we use **‘adduser’** command to create new user like below.
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```
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$ sudo adduser ostechnix
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```
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If you want the newly created user to perform any administrative tasks with sudo, just add him to the sudo group using command:
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```
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$ sudo usermod -a -G sudo hduser
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```
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The above command will make the user called **‘ostechnix’** to be the member of sudo group.
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You can also use this command too to add the users to sudo group.
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```
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$ sudo adduser ostechnix sudo
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```
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Now, log out and log in back as the new user for this change to take effect. The user has now become an administrative user.
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To verify it, just use ‘sudo’ as prefix in a any command.
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```
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$ sudo mkdir /test
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[sudo] password for ostechnix:
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```
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### Remove sudo privileges of an User
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Sometimes, you might want to remove sudo privileges to a particular user without deleting it from your Linux box. To make any user as a normal user, just remove them from the sudo group.
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Say for example If you want to remove a user called **ostechnix** , from the sudo group, just run:
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```
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$ sudo deluser ostechnix sudo
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```
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**Sample output:**
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```
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Removing user `ostechnix' from group `sudo' ...
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Done.
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```
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This command will only remove user ‘ostechnix’ from the sudo group, but it will not delete the user permanently from the system. Now, He becomes a regular user and can’t do any administrative tasks as sudo user.
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Also, you can use the following command to revoke the sudo access from an user:
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```
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$ sudo gpasswd -d ostechnix sudo
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```
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Please be careful while removing users from the sudo group. Do not remove the real administrator from the “sudo” group.
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Verify the user “ostechnix” has been really removed from sudo group using command:
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```
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$ sudo -l -U ostechnix
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User ostechnix is not allowed to run sudo on ubuntuserver.
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```
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Yes, the user “ostechnix” has been removed from sudo group, and he can’t execute any administrative tasks.
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Please be careful while removing a user from a sudo group. If you have only one sudo user on your system and you remove him from the sudo group, you can’t perform any administrative stuffs such as installing, removing and updating programs on your system. So, please be careful. In our next, tutorial, we will explain how to restore sudo privileges to a user
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And, that’s all for now. Hope this was useful. More good stuffs to come. Stay tuned!
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Cheers!
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--------------------------------------------------------------------------------
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via: https://www.ostechnix.com/how-to-grant-and-remove-sudo-privileges-to-users-on-ubuntu/
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作者：[SK][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.ostechnix.com/author/sk/
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[b]: https://github.com/lujun9972
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@ -0,0 +1,103 @@
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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (How To Grant And Remove Sudo Privileges To Users On Ubuntu)
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[#]: via: (https://www.ostechnix.com/how-to-grant-and-remove-sudo-privileges-to-users-on-ubuntu/)
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[#]: author: (SK https://www.ostechnix.com/author/sk/)
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如何在 Ubuntu 上为用户授予和删除 sudo 权限
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======
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如你所知，用户可以在 Ubuntu 系统上使用 sudo 权限执行任何管理任务。在 Linux 机器上创建新用户时，他们无法执行任何管理任务，直到你将其加入 **“sudo” 组的成员**。在这个简短的教程中，我们将介绍如何将普通用户添加到 sudo 组以及删除给定的权限，使其成为普通用户。
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**在 Linux 上向普通用户授予 sudo 权限**
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通常，我们使用 **“adduser”** 命令创建新用户，如下所示。
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```
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$ sudo adduser ostechnix
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```
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如果你希望新创建的用户使用 sudo 执行管理任务，只需使用以下命令将它添加到 sudo 组：
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```
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$ sudo usermod -a -G sudo hduser
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```
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上面的命令将使名为 **“ostechnix”** 的用户成为 sudo 组的成员。
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你也可以使用此命令将用户添加到 sudo 组。
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```
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$ sudo adduser ostechnix sudo
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```
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现在，注销并以新用户身份登录，以使此更改生效。此时用户已成为管理用户。
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要验证它，只需在任何命令中使用 “sudo” 作为前缀。
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```
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$ sudo mkdir /test
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[sudo] password for ostechnix:
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```
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### 删除用户的 sudo 权限
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有时，你可能希望删除特定用户的 sudo 权限，而不用在 Linux 中删除它。要将任何用户设为普通用户，只需将其从 sudo 组中删除即可。
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比如说如果要从 sudo 组中删除名为 **ostechnix** 的用户，只需运行：
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```
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$ sudo deluser ostechnix sudo
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```
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**示例输出：**
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```
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Removing user `ostechnix' from group `sudo' ...
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Done.
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```
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此命令仅从 sudo 组中删除用户 “ostechnix”，但不会永久地从系统中删除用户。现在，它成为了普通用户，无法像 sudo 用户那样执行任何管理任务。
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此外，你可以使用以下命令撤消用户的 sudo 访问权限：
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```
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$ sudo gpasswd -d ostechnix sudo
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```
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从 sudo 组中删除用户时请小心。不要从 “sudo” 组中删除真正的管理员。
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使用命令验证用户 “ostechnix” 是否已从 sudo 组中删除：
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```
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$ sudo -l -U ostechnix
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User ostechnix is not allowed to run sudo on ubuntuserver.
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```
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是的，用户 “ostechnix” 已从 sudo 组中删除，他无法执行任何管理任务。
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从 sudo 组中删除用户时请小心。如果你的系统上只有一个 sudo 用户，并且你将它从 sudo 组中删除了，那么就无法执行任何管理操作，例如在系统上安装、删除和更新程序。所以，请小心。在我们的下一篇教程中，我们将解释如何恢复用户的 sudo 权限。
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就是这些了。希望这篇文章有用。还有更多好东西。敬请期待！
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干杯!
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--------------------------------------------------------------------------------
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via: https://www.ostechnix.com/how-to-grant-and-remove-sudo-privileges-to-users-on-ubuntu/
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作者：[SK][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.ostechnix.com/author/sk/
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[b]: https://github.com/lujun9972
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