Detailed sudo permissions for Linux

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Permission management-4.1 system command sudo permissions

Write in the front: If you finish the inspection by yourself, there may be some mistakes. If you find something wrong, you can leave a message or private message me below.

1. sudo permissions

• root it should only be executed by the super user to give ordinary users to execute

• sudo operates on system commands

2. Use sudo

• visudo command

  • In fact, the / etc / sudoers file is modified. It is also possible to modify this file directly with vi without the above command

• root ALL=(ALL) ALL

  • [User name] [address of managed host] = [(available identity)] [authorization command]

  • The authorize command must write the absolute path

• %wheel ALL=(ALL) ALL

  • % Group name [address of managed host] = [(available identity)] [authorization command]

3. Authorize zxx users to restart the server

• visudo

• Write the following:

  • zxx ALL=/sbin/shutdown -r now

4. Ordinary users execute commands given by sudo

• sudo -l

  • View available sudo commands

• sudo /sbin/shutdown -r now

  • Ordinary users execute commands given by sudo

• Note: vim must not be given to ordinary users, otherwise any file can be modified

Write in the back: I hope these explanations will be helpful to you, I hope everyone will like and pay attention to it. Your support is my biggest motivation (๑> ؂ <๑)