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Jenkins is an open-source automation server that helps automate parts of software development, including building, testing, and deploying. This guide walks you through installing Jenkins on CentOS and configuring it to run on port 8090. Step 1: Install Required Dependencies First, ensure your system is up-to-date and …

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Today, I received a call from a customer. They wanted to restrict access to their public Network Load Balancer (AWS NLB), ensuring that only specific IPs could reach certain ports. As straightforward as this may sound, the situation quickly became more complex. Upon examining the NLB settings, I discovered that the NLB …

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If you're working with containers and Kubernetes, you've probably heard about Docker and containerd. In older blogs and documentation, Docker is often mentioned alongside Kubernetes. However, in newer content, you'll see containerd. So, what's the difference? And what tools should you be using? Let's dive into the …

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Docker is an essential tool for modern developers, allowing them to create, deploy, and run applications in containers. Containers are lightweight, portable, and ensure consistency across multiple environments. In this guide, we’ll break down Docker commands into easy-to-understand categories, helping you navigate …

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Introduction We're excited to share that HashiCorp is hosting a webinar titled "Stop Secret Sprawl with the New HCP Vault Radar." This interactive workshop is perfect for anyone managing sensitive data and secrets in their organization. You'll learn why rotating your secrets is so important and how the new …

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Introduction In the realm of Amazon Web Services (AWS), managing access control is crucial to ensure security and compliance. AWS Identity and Access Management (IAM) policies are used to define permissions for users, groups, and roles. One of the powerful features of IAM policies is the ability to restrict access …

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Introduction In this detailed guide, we'll walk you through the process of installing WordPress on Ubuntu 24.04 and securing the MySQL server to ensure the safety of your website's data. Prerequisites Before getting started, ensure you have the following: Ubuntu 24.04 installed SSH access to your server Installing …

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Solution 2: Fixing Incomplete Kernel or System Package Installation Create an EBS Snapshot: Follow instructions to Create Amazon EBS snapshots. Open Amazon EC2 Console: Ensure you're in the correct Region. Stop Impaired Instance: Navigate to Instances, select the impaired instance. Choose Instance State, Stop instance, …

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Yesterday, I ran into a problem with my AWS instance. Whenever I tried to start it up, I kept getting an error message that said something like "Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)" and in my instance status check, i was getting "Instance status checks …

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How to Check Cloud-init Logs in Linux Cloud-init is a tool that helps set up new cloud computers. It does things like connecting to the internet, setting up passwords, and running commands when the computer starts for the first time. When using cloud computers, it's important to check the cloud-init logs to make sure …

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