zhujiewu is not in the sudoers file. This incident will be reported.

This message means that the user "zhujiewu" is not allowed to use the "sudo" command, which is used to execute commands with administrative privileges. To grant sudo access to the user "zhujiewu", you need to add them to the sudoers file.

To do this, you can log in as a user with administrative privileges, edit the sudoers file using the "visudo" command, and add a line that grants sudo access to the user "zhujiewu". For example, the line may look like this:

zhujiewu  ALL=(ALL:ALL) ALL

This would allow the user "zhujiewu" to execute any command with administrative privileges. However, you should be careful when granting sudo access to users, as it can potentially give them unrestricted access to your system.