ubuntu创建sudo 用户

最新推荐文章于 2025-05-22 14:55:47 发布

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最新推荐文章于 2025-05-22 14:55:47 发布

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原文链接：http://www.cnblogs.com/oxspirt/p/9519246.html

本文介绍如何在Ubuntu系统中创建具有sudo权限的新用户，无需修改sudoers文件。步骤包括使用root用户登录服务器、添加新用户、设置密码及用户信息、将新用户添加到sudo组以及测试sudo权限。

The sudo command provides a mechanism for granting administrator privileges, ordinarily only available to the root user, to normal users. This guide will show you the easiest way to create a new user with sudo access on Ubuntu, without having to modify your server's sudoers file. If you want to configure sudo for an existing user, simply skip to step 3.

Steps to Create a New Sudo User

Log in to your server as the root user.
- ssh root@server_ip_address
Use the adduser command to add a new user to your system.

Be sure to replace username with the user that you want to create.
- adduser username
- Set and confirm the new user's password at the prompt. A strong password is highly recommended!
  
  Set password prompts:
```
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
```
- Follow the prompts to set the new user's information. It is fine to accept the defaults to leave all of this information blank.
  
  User information prompts:
```
Changing the user information for username
Enter the new value, or press ENTER for the default
    Full Name []:
    Room Number []:
    Work Phone []:
    Home Phone []:
    Other []:
Is the information correct? [Y/n]
```
Use the usermod command to add the user to the sudo group.
- usermod -aG sudo username
By default, on Ubuntu, members of the sudo group have sudo privileges.
Test sudo access on new user account
- Use the su command to switch to the new user account.
  - su - username
- As the new user, verify that you can use sudo by prepending "sudo" to the command that you want to run with superuser privileges.
  - sudo command_to_run
- For example, you can list the contents of the /root directory, which is normally only accessible to the root user.
  - sudo ls -la /root
- The first time you use sudo in a session, you will be prompted for the password of the user account. Enter the password to proceed.
  
  Output:
```
[sudo] password for username:
```
  If your user is in the proper group and you entered the password correctly, the command that you issued with sudo should run with root privileges.

转载于:https://www.cnblogs.com/oxspirt/p/9519246.html