Tag: System Management
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Using Shell Commands to Clean macOS: Advanced User Guide
When your macOS starts to slow down, cleaning it up with the built-in shell commands can work wonders. By using Terminal, macOS’s command-line interface, you can efficiently clear out clutter, free up disk space, and optimize performance. This article explains how to clean macOS using shell commands, providing simple instructions suitable even for beginners. What… Read more…
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How to Securely Remove Linux Log .gz Archives: A Comprehensive Guide
System administrators often face the challenge of managing log files in Linux. Over time, log files accumulate and are compressed into .gz archives to save space. While this is an effective way to manage storage, these files can eventually pile up, consuming disk space unnecessarily. This article explores efficient methods to find and remove .gz… Read more…
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Enable or Disable Root Login via SSH on Ubuntu
Root access via SSH on Ubuntu is disabled by default for security reasons. However, in certain scenarios, enabling root login can be beneficial, such as during administrative tasks or troubleshooting. This guide walks you through the process, highlights essential considerations, and offers tips to ensure security is not compromised. Read more…
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Understanding TrueNAS Scale Alerts: ZFS Pool Updates Explained
When upgrading TrueNAS Scale, users may encounter alerts about new ZFS version or feature flags for their storage pools. These notifications serve as a reminder to carefully consider whether upgrading your ZFS pool is necessary, as it can impact system rollbacks. This guide explains the significance of these alerts and offers step-by-step instructions for upgrading… Read more…
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How to Remove Startup Items Not Managed by Login Items & Extensions in macOS
macOS provides tools like “Login Items” in System Preferences and the Extensions section to manage startup applications. However, some startup items do not appear in these interfaces. This guide explains how to locate and remove such startup items. 1. Inspect Startup Directories in /Library and ~/Library macOS stores system-wide and user-specific startup items in specific… Read more…
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Different Use Cases of Bash and EXP (Expect)
What Bash can do, Expect can also achieve; but what Expect can do, Bash may not necessarily be able to accomplish. In system administration and automation tasks, bash and EXP (the command from the Expect tool) are two powerful utilities. While both are used in the command-line environment to execute tasks, they serve distinct purposes… Read more…
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Linux User Management: A Comprehensive Guide
Linux is a multi-user operating system, and user management is a critical aspect of system administration. It involves creating, modifying, and removing users, as well as managing groups, permissions, and access. In this article, we’ll go over several key Linux user management operations, providing examples along the way. 1. Creating a Group In Linux, groups… Read more…