Saurabh Khan - GravityDevOps

Top DevSecOps Tools: A Comprehensive Guide 2026

Quick Answer: DevSecOps integrates security into every stage of the DevOps pipeline ("shift left"). The essential DevSecOps tools for 2026 cover code scanning (SAST), dependency and image scanning (SCA), IaC…

Saurabh Khan May 3, 2025

DOCKER DevOps KUBERNETES

What is Portainer.io? Simplifying Container Management

Quick Answer: Portainer.io is a lightweight, open-source management UI for containers. It gives you a clean web dashboard to deploy, manage, and monitor Docker, Docker Swarm, and Kubernetes environments —…

Saurabh Khan March 8, 2025

DOCKER

Docker Container Monitoring: A Comprehensive Guide

Introduction Docker containerization has revolutionized application deployment by making it more efficient, scalable, and portable. However, monitoring containerized applications is crucial to ensure performance, security, and reliability. Unlike traditional monitoring,…

Saurabh Khan March 2, 2025

Linux

Searching Files & Directories: find, locate, grep

Searching for files and directories in Linux is an essential skill, whether you're an administrator, developer, or casual user. Linux provides powerful tools like find, locate, and grep to help…

Saurabh Khan March 1, 2025

Linux

Complete Tutorial on File Editors: nano, vi, and vim

Text editors are essential tools in the Linux command-line environment for editing configuration files, writing scripts, and managing documents. Among the most widely used editors are: nano: A simple and…

Saurabh Khan March 1, 2025

Linux

File Permissions in Linux (chmod, chown, chgrp) – Complete Tutorial

File permissions are essential in Linux to ensure security and proper access control. In this tutorial, we'll cover file permissions, and how to modify them using the chmod, chown, and…

Saurabh Khan March 1, 2025

Linux

Essential Linux Commands

Linux commands are essential for navigating and managing files in a Linux-based system. This tutorial covers eight fundamental Linux commands: ls (List directory contents) cd (Change directory) pwd (Print working…

Saurabh Khan March 1, 2025

Linux

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…

Saurabh Khan March 1, 2025

DOCKER

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…

Saurabh Khan March 1, 2025

Linux

How to Fix NtCreateFile (\Device\VBoxDrvStub) failed: 0xc0000034 (VirtualBox Error)

Quick Answer: The VirtualBox error NtCreateFile(\Device\VBoxDrvStub) failed: 0xc0000034 STATUS_OBJECT_NAME_NOT_FOUND means VirtualBox's kernel driver (VBoxDrv / VBoxDrvStub) failed to load. The fastest fixes are: run VirtualBox as Administrator, repair/reinstall VirtualBox, and…

Saurabh Khan February 25, 2025