Managing SELinux Policy with Booleans (setsebool)
SELinux Booleans SELinux booleans are switches that change the behavior of the SELinux policy. SELinux booleans are rules that can be enabled or disabled.
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Beginners Guide to Access Control Lists (ACLs) in Linux
Access Control List Concepts Standard Linux file permissions are satisfactory when files are used by only a single …
Beginners Guide to Scheduling Jobs in Linux Using Cron and Systemd Timer
Jobs scheduled to run repeatedly are called recurring jobs. Most Linux systems ship with the crond daemon, provided by …
How to Schedule Jobs to Run Using "At" Command in Linux
Why we need at instead of cron to schedule jobs Sometimes you might need to run a command, or set of commands, at a set …
How to Use Nice and Renice Commands in Linux to Prioritize or De-Prioritize Specific Processes
Linux Process Scheduling and Multi-Tasking Modern computer systems range from low-end systems that have single CPUs that …
Understanding Systemd-Tmpfiles to Manage Temporary Files and Directories in CentOS/RHEL
Managing Temporary Files A modern system requires a large number of temporary files and directories. Some applications …
Beginners Guide to Writing Bash Shell Scripts
Creating and Executing Bash Shell Scripts Many simple, common system administration tasks are accomplished using …
How to Create Conditional Structures in Shell Scripts Using if Statements
Conditional Structures Simple shell scripts represent a collection of commands that are executed from beginning to end. …
How to Use Exit Codes and Test Inputs in Shell Scripts
Using exit codes within a script After a script has processed all of its contents, it exits to the process that called …
How to Use for Loop in Bash Script
Using for loop to iterate commands System administrators often encounter repetitive tasks in their day-to-day …
Examples of Find and Locate Command to Search Files on Linux
Searching for files A system administrator needs tools to search for files matching certain criteria on the file system. …