Knowledge base category
System Administration
19 practical guides in System Administration.
How to Use the lsof Command to List Open Files and Ports in Linux
Learn how to use the lsof command in Linux to list open files, monitor ports, troubleshoot file locks, and manage system resources efficiently.
System AdministrationHow to Disable Root Login in Linux
Learn how to disable root login in Linux, enhancing system security and ensuring only privileged users can execute admin commands.
System AdministrationHow to Set the Timezone on Ubuntu 24.04
Learn how to set the timezone on Ubuntu 24.04 using the timedatectl utility to ensure your system clock is accurate and synchronized.
System AdministrationHow to Install ‘atop’ to Monitor Real-Time System Performance
Learn how to install and use 'atop' for real-time system performance monitoring in Linux. Discover its features, configuration, and usage tips.
System AdministrationHow to Keep sudo Password Timeout Longer in Linux
Learn how to extend the sudo password timeout in Linux to improve efficiency while maintaining system security. Discover settings and safety tips.
System AdministrationHow to Automatically Restart a Failed Service in Linux
Learn how to automatically restart failed services in Linux with effective methods like systemd, cron jobs, and Monit. Enhance system reliability.
System AdministrationBuild Versioned File Snapshots with rsync and Cron
Create guarded rsync snapshots with separate recovery versions, failure handling and monitored scheduling instead of a destructive single mirror.