testtwist.hashnode.devDay 3 Ubuntu: Level 2 Linux Production Incident ChallengeIf you are preparing for a DevOps or SRE switch, basic Linux commands are not enough. Scenario Alert received: Application latency is high. Users are facing errors. You log into the server. What d3d ago·3 min read
testtwist.hashnode.devDay 1 Challenge🔥: Production Server Issue SimulationProblem statement:"Our application is slow and sometimes not responding. Please check"Lets start...consider you have logged in to the server. 🎯 Step 1: Check System Healthtop or htopCheck : CPU usa3d ago·2 min read
testtwist.hashnode.devDay 2 Ubuntu: 20% of Linux Commands You’ll Use 80% of the TimeIf you are starting your Linux journey for DevOps or SRE, you do not need to learn 200 commands. You need the right 20 percent that you will actually use daily. Today we will focus on practical comman4d ago·3 min read
testtwist.hashnode.dev🚀 My Learning in Public MissionI am starting a dedicated platform where I will share what I am actively learning and implementing every single day. This is not theory content.This is practical, hands-on, real engineering knowledge.Feb 20·1 min read
techwithakshay.hashnode.devDay 8: Create a user named 'siva' in App Server 3 without a home directoryStep-by-step execution Step 1: Login to App Server 3 ssh banner@stapp03 Verify immediately: hostname You must see: stapp03 Step 2: Become root sudo su - Step 3: Create user without home directory -M → Do NOT create home directory Command: user...Jan 9·1 min read
