Networking

13 articles
Interview Preparation Advanced

Networking Automation

Automating connectivity checks, port scans, and API calls from Bash using curl, nc, and the standard networking commands.

Jan 20, 2026 Read more
Interview Preparation Intermediate

Linux Networking Fundamentals

How Linux handles networking — interfaces, IP addressing, routing, DNS resolution, sockets, and the essential diagnostic commands.

Jan 20, 2026 Read more
Interview Preparation Intermediate

DNS Resolution Failures

A runbook for diagnosing DNS resolution problems on Linux — resolver configuration, the /etc/hosts override trap, and telling a DNS issue …

Jan 20, 2026 Read more
Interview Preparation Advanced

Network Connectivity Issues

A layered runbook for diagnosing 'can't connect' problems on Linux — working outward from the local interface through routing, DNS, …

Jan 20, 2026 Read more
Interview Preparation Intermediate

Networking Commands

ip, ss, curl, dig, and the essential command-line tools for configuring, inspecting, and troubleshooting networking on Linux.

Jan 20, 2026 Read more
Courses Intermediate

LoadBalancer Service

Learn what a LoadBalancer Service is in Kubernetes, how it exposes applications externally, how cloud load balancers work with Kubernetes …

Jan 20, 2026 Read more
Courses Beginner

NodePort Service

Learn what a NodePort Service is in Kubernetes, how it works, and how to expose applications externally using worker node IP addresses and …

Jan 20, 2026 Read more
Courses Beginner

ClusterIP Service

Learn what a ClusterIP Service is in Kubernetes, how it works, and how to expose applications internally within the cluster for secure …

Jan 20, 2026 Read more
Learning Paths beginner

Linux Engineer Learning Path

A complete roadmap to mastering Linux — from basic commands to system administration, shell scripting, networking, security hardening, and …

Jan 18, 2025 Read more