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Superuser
In computing, the superuser is a special user account used for system administration. Depending on the operating system An operating system (OS) is system software that manages computer hardware, computer software, software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), sch ... (OS), the actual name of this account might be root, administrator, admin or supervisor. In some cases, the actual name of the account is not the determining factor; on Unix-like systems, for example, the user with a user identifier (UID) of zero is the superuser, regardless of the name of that account; and in systems which implement a role based security model, any user with the role of superuser (or its synonyms) can carry out all actions of the superuser account. The principle of least privilege In information security Information security, sometimes shortened to infosec, is the practice of protecting informa ...
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Sudo
sudo ( or ) is a computer program, program for Unix-like computer operating systems that enables users to run programs with the security privileges of another user, by default the superuser. It stands for "superuser do", as originally that is all it did, and it is its most common usage; however, a common false etymology is "substitute user, do", because sudo can run a command as other users as well. Unlike the similar command ''Su (Unix), su'', users must, by default, supply their own password for authentication, rather than the password of the target user. After authentication, and if the configuration file (which is typically located at /etc/sudoers)permits the user access, the system invokes the requested command. The configuration file offers detailed access permissions, including enabling commands only from the invoking terminal; requiring a password per user or group; requiring re-entry of a password every time or never requiring a password at all for a particular command li ...
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