Posted inLinux
Understanding the Linux Boot Process: A Step-by-Step Guide
The Linux boot process is a sequence of events that occur from the moment a system is powered on until the user gets a fully functional operating system. It involves…
Posted inDOCKER
Managing Secrets in Docker: A Comprehensive Guide
In modern containerized environments, managing secrets securely is critical. Secrets, such as API keys, passwords, TLS certificates, and database credentials, must be protected to prevent unauthorized access. Docker provides multiple…
Posted inLinux
NtCreateFile (\Device\VBoxDrvStub) failed: 0xc0000034STATUS_OBJECT_NAME_NOT_FOUND (0 retries) (rc=-101)
NtCreateFile (\Device\VBoxDrvStub) failed: 0xc0000034STATUS_OBJECT_NAME_NOT_FOUND (0 retries) (rc=-101)Make sure the kernel module has been loaded successfully.where: supR3HardenedWinReSpawn what: 3 VERR_OPEN_FAILED (-101) – File/Device open failed. Driver is probably stuck stopping/starting. Try…
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Linux Boot Process: A Comprehensive Guide
Linux, like any other operating system, follows a structured boot process when a system is powered on. Understanding this process is crucial for system administrators, DevOps engineers, and Linux enthusiasts.…
Posted inLinux
Basic Linux Architecture: Kernel, Shell, Filesystem
Linux is an open-source operating system that powers a wide range of devices, from servers to embedded systems. Its architecture is designed for efficiency, security, and flexibility. Understanding the basic…
Posted inLinux
What is Linux? Why Use Linux? and Linux Distributions: Ubuntu, CentOS, RHEL, Debian
Introduction Linux is an open-source, Unix-like operating system that powers a vast majority of the world's servers, embedded systems, and even personal computers. It is widely known for its stability,…
Posted inDOCKER CONTAINERIZATION
Docker Security Scanning: A Comprehensive Guide
Introduction As organizations increasingly adopt Docker for containerized applications, security remains a top priority. One critical aspect of container security is Docker Security Scanning, which helps identify vulnerabilities in container…
Posted inDevOps
DevOps for Beginners: Full Lifecycle Explained with Real-World Examples
What is DevOps? DevOps is a culture, methodology, and set of practices that aim to bridge the gap between development (Dev) and operations (Ops) to enable faster, more reliable software…
Posted inDevOps
The Ultimate DevOps roadmap with Advanced Tools for 2025
DevOps Roadmap 2025 1. Fundamentals (Beginner Level) ✅ Linux & Shell Scripting Basic commands (ls, cp, mv, rm, grep, awk, sed, etc.) User management, permissions, process management Bash scripting &…
Posted inDOCKER
What is Docker Host Security?
Introduction As containerization continues to revolutionize software development and deployment, Docker has emerged as one of the most popular tools for building, shipping, and running applications inside lightweight containers. However,…