Linux Users

An introduction to file permissions in Linux.

5 videos  //  44 minutes of training

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Course description

This course will go over the basics of file permissions in Linux. We will review how to view and set file permissions, as well as look at some special file permissions like SUID and the “Sticky Bit.” The use of the SUDO utility for elevating user privileges will also be covered.

Course syllabus

Introduction to Linux UsersDuration: 6:59

A look at users and root user, UIDs, GIDs, users and groups, “/etc/shadow”, “/etc/passwd” and password changing.

Setting File/Group PermissionsDuration: 9:19

Exploring RWX, 755, SUID and sticky bit, and using chmod/chown.

Special File Permissions and using 'sticky bit'Duration: 6:18

How to use special Linux file permissions and sticky bit.

Special File Permissions and using SUID GUIDDuration: 11:48

How to use special Linux file permissions and SUID GUID.

Special File Permissions and using SudoDuration: 9:13

How to use special Linux file permissions and Sudo.

Meet the author

Jason Welsh

LinkedIn

Jason Welsh started experimenting with Linux back in 1994 when it was still packaged on floppy disks. Over the years, he has run just about every flavor of Linux there is as well as a few years trying out FreeBSD.

He has been administering Solaris and Linux systems professionally since around 2003, supporting everything from Linux running on the server hardware to storage to VPNs and firewalls. He’s always on the lookout for new and exciting things to try out in his home lab, which runs a Proxmox server. He’s tolerant of all Linux distributions, but the current favorite is Arch or Manjaro Linux.

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