Switching user (sudo)

On any Linux system, there is only one account with all the super-administrator power, this is the root account, the account with ID 0.
It is not recommended to use directly this account, for different reasons, all linked to security and traceability:
  • If allowed to be used to log on, one half of the job is done for the hackers, they just need to find the password as the username is always the same to get super power on the system