--- title: "Pushpendra B (@deepdev) | Hashnode" description: "Sys admin with passion of linux. Read the latest articles by Pushpendra B on Hashnode." url: "https://hashnode.com/@deepdev" --- @deepdev # Pushpendra B @deepdev · India · Joined April 2021 Sys admin with passion of linux [Website](https://overflowbyte.tech/) ### [How a 732-Byte Python Script Can Escape Your Kubernetes Cluster — Copy Fail, Explained](https://blog.overflowbyte.cloud/copy-fail-kubectl-escape-kubernetes?utm_source=hashnode&utm_medium=feed) A deep-dive into CVE-2019-11246, path traversal via kubectl cp, and why your RBAC rules won't save you from this one. 20 min read · [blog.overflowbyte.cloud](https://blog.overflowbyte.cloud/copy-fail-kubectl-escape-kubernetes?utm_source=hashnode&utm_medium=feed) [May 11](https://hashnode.com/posts/copy-fail-kubectl-escape-kubernetes/6a014d65e3eebc2e20f6c09f) ### [OverflowByte Weekly: Cloud Broke, Kernels Got Exploited, and AI Took Over the Pipeline — May 4–10, 2026](https://blog.overflowbyte.cloud/overflowbyte-weekly-cloud-broke-kernels-got-exploited-and-ai-took-over-the-pipeline-may-4-10-2026?utm_source=hashnode&utm_medium=feed) This week: AWS us-east-1 went down, three Linux kernel CVEs (Copy Fail, DirtyFrag, Pack2TheRoot) hit with working exploits, Kubernetes 1.33 entered EOL countdown, and AI agents landed in production DevOps pipelines. Your weekly Cloud, Linux & DevOps briefing from OverflowByte. 10 min read · [blog.overflowbyte.cloud](https://blog.overflowbyte.cloud/overflowbyte-weekly-cloud-broke-kernels-got-exploited-and-ai-took-over-the-pipeline-may-4-10-2026?utm_source=hashnode&utm_medium=feed) [May 10](https://hashnode.com/posts/overflowbyte-weekly-cloud-broke-kernels-got-exploited-and-ai-took-over-the-pipeline-may-4-10-2026/6a00c7bce3eebc2e20b2568e) ### [How to Extract (Unzip) tar.xz File: A Complete Beginner's Guide](https://blog.overflowbyte.cloud/how-to-extract-unzip-tar-xz-file-a-complete-beginner-s-guide?utm_source=hashnode&utm_medium=feed) Learn how to extract a tar.xz file easily on Linux, Windows, and macOS. A complete beginner-to-intermediate guide with real-world examples, commands. 12 min read · [blog.overflowbyte.cloud](https://blog.overflowbyte.cloud/how-to-extract-unzip-tar-xz-file-a-complete-beginner-s-guide?utm_source=hashnode&utm_medium=feed) [Mar 1](https://hashnode.com/posts/how-to-extract-unzip-tar-xz-file-a-complete-beginner-s-guide/69a46591a7428b958dd3a196) ### [Weekly DevOps & Cloud Intelligence Report – Week 4, February 2026](https://blog.overflowbyte.cloud/weekly-devops-cloud-intelligence-report-week-4-february-2026?utm_source=hashnode&utm_medium=feed) DevOps weekly updates for Feb 23–Mar 1 2026: AWS EKS open-source agent, AKS Kubernetes 1.34 GA, RHEL kernel CVEs, Terraform Enterprise 1.2.0, and AI i 15 min read · [blog.overflowbyte.cloud](https://blog.overflowbyte.cloud/weekly-devops-cloud-intelligence-report-week-4-february-2026?utm_source=hashnode&utm_medium=feed) [Mar 1](https://hashnode.com/posts/weekly-devops-cloud-intelligence-report-week-4-february-2026/69a45f8da7428b958dd19397) ### [How to Allow SSH Root Login on Linux (Securely): Real-World Use Cases & Best Practices](https://blog.overflowbyte.cloud/how-to-allow-ssh-root-login-on-linux-securely-real-world-use-cases-best-practices?utm_source=hashnode&utm_medium=feed) Learn how to securely allow SSH root login on Linux. Discover real-world use cases, best practices, and a step-by-step guide for sysadmins and beginners 6 min read · [blog.overflowbyte.cloud](https://blog.overflowbyte.cloud/how-to-allow-ssh-root-login-on-linux-securely-real-world-use-cases-best-practices?utm_source=hashnode&utm_medium=feed) [Feb 25](https://hashnode.com/posts/how-to-allow-ssh-root-login-on-linux-securely-real-world-use-cases-best-practices/699e78281ddf529956ec27de)