Mastering Linux Process Management: How to Kill a Process Safely and Effectively

Managing processes in Linux is a fundamental skill for system administrators and developers alike. Whether you’re troubleshooting a misbehaving application or stopping a service, knowing how to safely terminate/kill a process is essential. This guide will walk you through the steps to effectively manage processes, including those started with elevated privileges, using commands like kill, pkill, and … Read more

26. Troubleshooting Common Issues on Ubuntu Server: A Practical Guide

Introduction Ubuntu Server is a dependable and widely-adopted Linux distribution, but even the most reliable systems can face challenges that impact performance or disrupt operations. Understanding how to troubleshoot common issues is crucial for maintaining uptime and ensuring seamless functionality. In this guide, “Troubleshooting Common Issues on Ubuntu Server,” we’ll explore practical techniques to diagnose and resolve … Read more

Troubleshooting Azure Disk Encryption Error: RUNTIME_E_KEYVAULT_SECRET_WRAP_WITH_KEK_FAILED

When enabling Azure Disk Encryption for your Virtual Machine (VM), you may encounter the following error: JSON’code’: ‘VMExtensionProvisioningError’, ‘message’: ‘VM has reported a failure when processing extension ‘AzureDiskEncryption’ (publisher ‘Microsoft.Azure.Security’ and type ‘AzureDiskEncryption’). Error message: ‘[2.5.0.3] Failed to enable Azure Disk Encryption on the VM with the following exception details:\n Microsoft.Cis.Security.BitLocker.BitlockerIaasVMExtension.BitlockerFailedToSendEncryptionSettingsException: The fault reason was: ‘0xc142506f RUNTIME_E_KEYVAULT_SECRET_WRAP_WITH_KEK_FAILED … Read more

How to Uninstall VMware Tools for Azure VM: Step-by-Step Guide

When migrating virtual machines (VMs) from VMware to Azure, one critical step often overlooked is uninstalling VMware Tools before the migration. If VMware Tools is not removed prior to migration, using standard uninstallation methods after the VM is already on Azure may fail. This can result in leftover services, files, and drivers that interfere with … Read more

Troubleshooting Azure Storage Account Firewall Authorization Errors

Introduction Hardening data plane access for a storage account is a common practice to enhance security. However, when using Azure resources with virtual network (VNET) integration or accessing storage endpoints from private IPs or other tenants, authorization errors can occur if the source is not properly whitelisted. This article explores common scenarios that lead to … Read more

Troubleshooting Access Issues with Azure Files: Net Use Command vs Azure Portal Script

Accessing Azure File Shares can sometimes result in errors, especially when using the mount script copied from the Azure Portal. A common issue is the “Access Denied” error, which may occur when configuring Azure Files as part of an Azure Virtual Desktop (AVD) environment. This guide explores the root cause of the issue and provides a resolution, comparing the Net … Read more

Only Half of the vCPUs Displayed in Task Manager for Azure VMs

When migrating virtual machines (VMs) to Azure, some users have reported seeing only half of the expected vCPUs in Task Manager, despite the hardware and device manager showing the correct number of CPUs. This article explains the root cause of the issue and provides a step-by-step solution that has been successfully implemented. Issue Overview After migrating … Read more

Why Can’t I cd Into a Directory in Linux? Troubleshooting Tips

Navigating directories in Linux using the cd command is usually straightforward, but sometimes you might run into issues. Here’s a step-by-step guide to troubleshoot and resolve common problems when you can’t cd into a directory. 1. Check for Typos The first step is to ensure the directory name is spelled correctly. A typo can prevent you from accessing the … Read more

Understanding the Linux OOM Killer: A Fun Illustration

Introduction The OOM Killer (Out-of-Memory Killer) is a critical mechanism in Linux that steps in when the system runs out of memory. It terminates processes to free up memory and keep the system running. While it’s a lifesaver in low-memory situations, its behavior can sometimes seem arbitrary or confusing. To help you understand the concept behind the … Read more