- 添加root用户
- 添加新用户并赋予权限
文件只读，无法更改
root@ubuntu-server:/home/ubuntu# vi /etc/sudoers
root@ubuntu-server:/home/ubuntu# vi /etc/sudoers
root@ubuntu-server:/home/ubuntu# chmod -R 777 /etc/sudoers
root@ubuntu-server:/home/ubuntu# vi /etc/sudoers
root@ubuntu-server:/home/ubuntu# chmod 0440 /etc/sudoers
root@ubuntu-server:/home/ubuntu# chmod -R 777 /etc/sudoers
root@ubuntu-server:/home/ubuntu# vi /etc/sudoers
root@ubuntu-server:/home/ubuntu# chmod 0440 /etc/sudoers
root@ubuntu-server:/home/ubuntu#证明自己已经在root用户组
zhangbin@ubuntu-server:~$ sudo -i
[sudo] password for zhangbin:
root@ubuntu-server:~#
