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You have 3 servers. 100 requests come in. How do you distribute them? Here are your options: Load balancing algorithms: Round Robin: - Request 1 goes to Server A - Request 2 goes to Server B - Request 3 goes to Server C - Request 4 goes to Server A again - Repeat forever in…
Ever wondered how HTTPS actually keeps your data safe? Here’s what happens behind the scenes every time you visit a secure website 1️⃣ TCP Handshake – Your device and the server agree to communicate. 2️⃣ Certificate Check – The server proves its identity with a trusted…
our stateful Kubernetes services just broke after an upgrade! As a DevOps engineer, I’ve seen this nightmare scenario destroy weekends in production. When StatefulSets fail post-upgrade, every minute of downtime costs money. Here’s my 7-step Kubernetes debugging playbook: 👉…
I MADE A VOICE AI AUTOMATION AGENT FOR A REAL ESATE AGENT THAT MADE THEM $43,000 Literally created this bot in 20 mins with n8n Want a Doc + workflow on how to do it? RT, Like & reply "AI” and I’ll DM it to you (Must be follow me for dm)
DNS Records Every DevOps Engineer Must Know A Record (Address Record) - Maps domain to IPv4 address - Example: example[.]com → 192.168.1.1 - Most common record type AAAA Record - Maps domain to IPv6 address - Same as A record but for IPv6 - Future-proofing your infrastructure…
Common System Design Interview Questions ✅ 👉Specific Focus Questions - How would you scale a relational database to millions of users? - How do you handle cache invalidation? - How to design for high availability across data centers? - Explain how you would design an API…
Your AWS bill is probably 40% higher than it needs to be. Here are 15 ways to fix it: • Right-size EC2 instances —> That m5.2xlarge at 10% CPU? Downsize it. • Use Spot Instances —> Up to 90% off for batch jobs, CI/CD, dev environments • Buy Reserved Instances or Savings…
Kubernetes terminology in plain English: Pod: Smallest unit. Runs container with your app. Node: A server. Pods run on nodes. Cluster: Group of nodes working together. Deployment: Instructions for running your app. "Keep 3 copies running always." ReplicaSet: Ensures right number…
DevSecOps project for beginners Build a security scanning pipeline in 2-3 hours (free) 5 automated stages that catch vulnerabilities before production: Secret scanning → blocks API keys/passwords SAST → finds SQL injection, XSS Dependency scan → catches vulnerable packages…
Kubernetes Deployment Strategies need not be that complex to understand. Here, I’ve made this to simplify the understanding. 54K+ read my DevOps and Cloud newsletter: techopsexamples.com/subscribe What do we cover: DevOps, Cloud, Kubernetes, IaC, GitOps, MLOps 🔁 Consider a Repost…
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Giveaway Alert! 🚨 We’re giving away the newly launched Apple iPhone 17 🔥 Want in? 🔁 Retweet this post ✅ Follow 👥 Tag 3 friends in the comments (Just mention any handles to qualify) It’s that simple good luck! 🤞 This giveaway is India-exclusive not international
🚨 Kubernetes in Plain English: 1.Containers → tiny apps with everything they need to run. 2.Pods → smallest unit Kubernetes runs (1–2 containers together). 3.Nodes → servers where containers live. 4.Cluster → all nodes managed as one. 5.Controller → keeps apps running,…
Important JVM flags for performance optimisation✅ -Xms → Sets initial heap size -Xmx → Sets maximum heap size -XX:+UseG1GC → Enables G1 garbage collector -XX:MaxMetaspaceSize → Limits metaspace usage -XX:+HeapDumpOnOutOfMemoryError → Dumps memory on OOM…
20 important Kubernetes Objects/Components that you should definitely know 20. 𝗦𝘁𝗮𝘁𝗲𝗳𝘂𝗹𝗦𝗲𝘁 – For applications that need stable network identity and persistent storage, such as databases. 19. 𝗗𝗮𝗲𝗺𝗼𝗻𝗦𝗲𝘁 – Ensures a Pod runs on every (or specific) node, often…
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Freshers and experienced get overwhelmed with terminologies which are used as infrastructures in building an application. Do not appear for interviews without knowing these. I'm explaining below a few key infrastructures and why they're used: →API Gateway Manages, routes, and…
Why 90% of “DevOps Engineers” Can’t Debug a Simple Server Issue Every week I see someone with “3 years DevOps experience” who can deploy to Kubernetes but freezes when asked to troubleshoot why a server is running slow. They know every Terraform module by heart but can’t…
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