Straight answers for DevOps, Linux, and deployment.
ForgeOps answers common questions about DevOps, Linux servers, and deployment basics. Each answer is short, practical, and written for people who need to get something working today.
Linux Basics
- How do I check disk space in Linux?
- What is the difference between a process and a thread in Linux?
- How do I change file permissions in Linux?
- What is the difference between a hard link and a soft link?
- How do I find a file by name in Linux?
- What does chmod 755 mean?
- How do I check which process is using a port on Linux?
- How do I schedule a cron job on Linux?
Server Setup
- How do I set up a Linux server for the first time?
- How do I create a new user on a Linux server?
- What is SSH and how does it work?
- How do I configure a firewall on Linux?
- How do I keep a Linux server updated?
- What is the best way to secure a new Linux server?
- How do I install Nginx on a Linux server?
- How do I set up SSH key login on a Linux server?
Deployment
- What is deployment in software?
- How do I deploy a web app to a Linux server?
- What is the difference between deployment and release?
- How do I roll back a bad deployment?
- What is a blue-green deployment?
- How do I deploy code with Git?
- What are the basics of model deployment?
- What are the basics of cloud deployment?
CI/CD
- What is CI/CD?
- How do I set up a CI/CD pipeline?
- What is the difference between continuous delivery and continuous deployment?
- How do I run tests in a CI pipeline?
- What is a build artifact?
- How do I store secrets in CI/CD?
- How do I set up a GitHub Actions workflow for deployment?
- What is the simplest CI pipeline a beginner can build?
Containers
- What is Docker and why use it?
- How do I write a Dockerfile?
- What is the difference between a container and a virtual machine?
- How do I run a Docker container in the background?
- What is Docker Compose?
- How do I reduce Docker image size?
- What are the basics of Kubernetes deployment?
- How do I stop and remove Docker containers?
