Podcast
Questions and Answers
Which type of permissions are widely available in most file systems?
Which type of permissions are widely available in most file systems?
What is the per-file attribute in the original File Allocation Table (FAT) file system?
What is the per-file attribute in the original File Allocation Table (FAT) file system?
Which file system uses ACLs to provide a complex set of permissions?
Which file system uses ACLs to provide a complex set of permissions?
What kind of user interface is referred to as permission-driven?
What kind of user interface is referred to as permission-driven?
Signup and view all the answers
How many categories of access permissions are there in the OpenVMS file system?
How many categories of access permissions are there in the OpenVMS file system?
Signup and view all the answers
Which types of permissions are widely available in most file systems?
Which types of permissions are widely available in most file systems?
Signup and view all the answers
What is the per-file attribute in the original File Allocation Table (FAT) file system?
What is the per-file attribute in the original File Allocation Table (FAT) file system?
Signup and view all the answers
Which file system uses a permission scheme similar to that of Unix?
Which file system uses a permission scheme similar to that of Unix?
Signup and view all the answers
How many categories of access permissions are there in the OpenVMS file system?
How many categories of access permissions are there in the OpenVMS file system?
Signup and view all the answers
What kind of user interface is referred to as permission-driven?
What kind of user interface is referred to as permission-driven?
Signup and view all the answers
Which operating system heavily inspired Linux namespaces?
Which operating system heavily inspired Linux namespaces?
Signup and view all the answers
What is the main purpose of namespaces in the Linux kernel?
What is the main purpose of namespaces in the Linux kernel?
Signup and view all the answers
Which of the following is NOT an example of a resource that can exist in multiple namespaces?
Which of the following is NOT an example of a resource that can exist in multiple namespaces?
Signup and view all the answers
What is the term 'namespace' often used for in the context of Linux?
What is the term 'namespace' often used for in the context of Linux?
Signup and view all the answers
How does a Linux system start out in terms of namespaces?
How does a Linux system start out in terms of namespaces?
Signup and view all the answers
Which of the following is an example of a resource that can exist in multiple namespaces?
Which of the following is an example of a resource that can exist in multiple namespaces?
Signup and view all the answers
What is the main purpose of namespaces in the Linux kernel?
What is the main purpose of namespaces in the Linux kernel?
Signup and view all the answers
What inspired the development of Linux namespaces?
What inspired the development of Linux namespaces?
Signup and view all the answers
How does a Linux system start out in terms of namespaces?
How does a Linux system start out in terms of namespaces?
Signup and view all the answers
What is a fundamental aspect of containers in Linux?
What is a fundamental aspect of containers in Linux?
Signup and view all the answers
Study Notes
File System Permissions
- Common permissions across most file systems include read, write, and execute.
- The original File Allocation Table (FAT) file system allows for a per-file attribute known as the "hidden" attribute.
- Access Control Lists (ACLs) are used by file systems like NTFS to manage intricate permission settings.
- Unix-style permission schemes are implemented in file systems such as ext3 and ext4.
OpenVMS File System
- OpenVMS file system features three categories of access permissions: owner, group, and world.
User Interfaces and Permissions
- A permission-driven user interface offers options and access based on the user's permissions and roles.
Linux Namespaces
- Linux namespaces were heavily inspired by the features of the Solaris operating system.
- The main purpose of namespaces in the Linux kernel is to isolate processes, allowing multiple instances of resources without conflict.
- The term 'namespace' commonly refers to a logical container for those resources that helps organize and separate them in the Linux environment.
- On initialization, a Linux system starts within a default set of namespaces, typically sharing certain resources with the host.
- An example of a resource existing in multiple namespaces includes network interfaces, which can be virtualized.
- A fundamental aspect of Linux containers is their ability to use namespaces to create lightweight, isolated user-space instances.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on file system permissions and learn about the different attributes that control user access to files and directories. Explore the concept of permission-driven user interfaces and discover the two widely available types of permissions in the POSIX file system.
