Chapter 17. Develop an Automation Security Policy
These labs should be performed on the Ubuntu operating system that you installed in Chapter 1, “Distributions and Key Components.” Before you begin this lab, log in to the student account that you created during the installation process.
Lab 17.1 Securing crontab and at
Scenario: Based on the recommendations in Linux Essentials for Cybersecurity, make sure that the permissions on all cron and at files are as strict as possible.
Exception: If you change the permissions to /var/spool/cron and /var/spool/at on Ubuntu, regular users will not be able to use the corresponding commands (crontab and at). Change those permissions and test as the student user and then change the permission back to the original ...
Get Linux Essentials for Cybersecurity Lab Manual, First Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
