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NFSv4 was intended to help avoid numeric identifier collisions by identifying users (and groups) in protocol packets using textual “user@domain” names rather than integer numbers. However, as long as operating-system kernels and local file systems continue to use integer user identifiers, this comes at the expense of additional translation ...
Many system administrators allocate for each user also a personal primary group that has the same name as the user's login name, and often also has the same numeric GID as the user's UID. Such personal groups have no other members and make collaboration with other users in shared directories easier, by allowing users to habitually work with ...
In many Unix variants, "nobody" is the conventional name of a user identifier which owns no files, is in no privileged groups, and has no abilities except those which every other user has. It is normally not enabled as a user account, i.e. has no home directory or login credentials assigned. Some systems also define an equivalent group "nogroup".
With groups, the task is much simpler: [1] create a student group and a staff group, placing each user in the proper group. The entire group can be granted access to the appropriate directory. [1] To add or remove an account, one must only need to do it in one place (in the definition of the group), rather than on every directory. This workflow ...
After authentication, and if the configuration file permits the user access, the system invokes the requested command. sudo retains the user's invocation rights through a grace period (typically 5 minutes) per pseudo terminal, allowing the user to execute several successive commands as the requested user without having to provide a password again.
The wheel group is a special user group used on some Unix systems, mostly BSD systems, [citation needed] to control access to the su [4] [5] or sudo command, which allows a user to masquerade as another user (usually the super user). [1] [2] [6] Debian and its derivatives create a group called sudo with purpose similar to that of a wheel group. [7]
Zorin OS follows the long-term releases of the main Ubuntu system and uses its own software repositories as well as Ubuntu's repositories. The desktop environment themes can resemble those of Microsoft Windows, macOS, or Ubuntu [7] [8] [9] and allow the interface to be familiar regardless of the previous system a user has come from. [10]
On Debian and Ubuntu, the words file is provided by the wordlist package, or its provider packages wbritish, wamerican, etc. On Fedora and Arch Linux, the words file is provided by the words package. The words package is sourced from data from the Moby Project, a public domain compilation of words. [2]