Best Practices & Patterns

Storage Management in RHEL/CentOS made Simpler (CLI Tools)1
- Best Practices & Patterns, Linux Basics, System Administration, Web Servers
- June 9, 2025
RHEL and CentOS provide powerful command-line tools for disk and storage management. To get started, identify existing disks and partitions using commands like lsblk (list block devices) or fdisk -l. For example, lsblk displays all disks and partitions in a clear tree view. The fdisk -l command reports disk sizes and partition tables; e.g., it might show a 30 GiB /dev/sda disk with /dev/sda2 marked as an LVM partition.
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How to Investigate and Resolve SELinux Issues in Linux 0
- Best Practices & Patterns, Linux Basics, Security & Hardening, System Administration, Troubleshooting, Web Servers
- June 7, 2025
SELinux (Security-Enhanced Linux) is a powerful security feature of Red Hat Enterprise Linux and CentOS. It provides a mechanism to enforce mandatory access control policies. However, SELinux can occasionally block legitimate activities if misconfigured. Here’s how you can investigate and resolve SELinux issues effectively.
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How to Repair Linux File-system Issues at Boot 0
- Best Practices & Patterns, Linux Basics, System Administration, Troubleshooting
- June 3, 2025
File-system issues can cause a Linux system, such as Red Hat Enterprise Linux, to fail during boot, leading to system downtime and operational disruption. This guide provides step-by-step instructions on detecting, troubleshooting, and repairing common file-system problems encountered during boot.
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How to Reset a Forgotten Root Password on RHEL/CentOS 0
- Best Practices & Patterns, Configuration Management, Linux Basics, System Administration, Virtualization, Web Servers
- May 28, 2025
Losing or forgetting a root password can occur for various reasons. This guide outlines how to reset the root password on RHEL/CentOS using GRUB bootloader, including steps to enhance security afterward.
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SELinux Management made Simpler 0
- Best Practices & Patterns, Linux Basics, Security & Hardening, System Administration, Web Servers
- October 2, 2024
This guide introduces key SELinux concepts and offers practical steps for managing SELinux effectively in a Linux environment.
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Linux Boot Management and Troubleshooting 0
- Best Practices & Patterns, Linux Basics, System Administration, Troubleshooting
- February 25, 2023
Efficient management and troubleshooting of the boot process in Red Hat Enterprise Linux ensures that systems remain reliable, accessible, and recoverable. This guide provides clear, practical instructions for managing system boot configurations, identifying common boot issues, and resolving problems effectively. Understanding the Boot Process The Linux boot process typically involves: Identifying Boot Issues Common signs
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