Wheels in Linux
In this article, we will understand wheel groupsthe meaning of in Linux.
On some Unix systems, wheel groupa special user group that controls suaccess to commands and allows a user to clone another user, the superuser.
Basic goals of the Linux group
A group in Linux is a collection of users. The basic purpose of a group is to specify a set of permissions for a resource.
This can be shared between users within a group, such as read, write or execute access permissions. With the permissions granted to an existing group, users can be added to it.
Group work in Linux
The user owns each process, for example, when a process tries to read a file owned by the group, like Thanosthe user.
Linux Adetermines Thanoswhether the user has permission to access the file, Bdetermines Thanoswhich groups the user belongs to, and whether any of those groups own and can access the file.
LinuxSudoers Wheel
When a user's wheel groupmembership grants them full sudoroot access, it is usually /etc/sudoersset like this in the file: %wheel ALL=(ALL) ALL.
This means that any member on any host 组轮can sudoaccess any user account and run any command.
Users and Groups in Linux
User groups are very important on Linux systems. They make it easy for a small group of users to share files.
System administrators can also manage user permissions more efficiently by assigning permissions to groups rather than to individual users.
In Linux, type: groupaddcreate group
To create a new group, type groupadd, followed by the name of the new group. This command updates the /etc/groupand /etc/gshadowfiles to include the new group.
After you create a group, you can add users to it.
Wheel GroupMeaning in Linux
TENEXAfter the introduction of the operating system and later distributed under TOPS-20 in the 1960s and early 1970s, the term wheelwas first applied to computer user privilege levels.
The name comes from slang 巨大的轮子for someone who has a lot of power or influence.
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