SunWorld: Security basics, Part 1 - Understanding file attribute bits and modes | Linux Today

SunWorld: Security basics, Part 1 – Understanding file attribute bits and modes

Written By
Web Webster
Web Webster
Oct 29, 2000

Security is always an issue in multiuser computing systems.
Unix provides a rich set of security options, and this month we
begin a three-part security series by exploring some
basics.

“As a true multiuser, multitasking operating system, Unix has a
fairly sophisticated method for setting file and directory
permissions.”

“The chmod command is simple once you’ve grasped the basics. To
understand it, let’s start with a small directory listing that can
be generated by the ls -l command.”


Complete Story

Web Webster

Web Webster

Web Webster has more than 20 years of writing and editorial experience in the tech sector. He’s written and edited news, demand generation, user-focused, and thought leadership content for business software solutions, consumer tech, and Linux Today, he edits and writes for a portfolio of tech industry news and analysis websites including webopedia.com, and DatabaseJournal.com.

Linux Today Logo

LinuxToday is a trusted, contributor-driven news resource supporting all types of Linux users. Our thriving international community engages with us through social media and frequent content contributions aimed at solving problems ranging from personal computing to enterprise-level IT operations. LinuxToday serves as a home for a community that struggles to find comparable information elsewhere on the web.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.