Linux Users Course

An introduction to file permissions in Linux.

45 minutes

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.

Syllabus

Welcome to the Securing Linux/UNIX path!

Video - 00:01:00
Welcome to the Securing Linux/UNIX path!
Special File Permissions and using Sudo

Video - 00:09:00
How to use special Linux file permissions and Sudo.
Special File Permissions and using SUID GUID

Video - 00:12:00
How to use special Linux file permissions and SUID GUID.
Special File Permissions and using 'sticky bit'

Video - 00:06:00
How to use special Linux file permissions and sticky bit
Setting File/Group Permissions

Video - 00:09:00
Exploring RWX, 755, SUID and sticky bit, and using chmod/chown.
Introduction to Linux Users

Video - 00:07:00
A look at users and root user, UIDs, GIDs, users and groups, “/etc/shadow”, “/etc/passwd” and password changing.

Meet the author

Jason Welsh

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 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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