YOUR STUDY ROADMAP
Structured topics from core administration to cloud-native tools. Choose a track, practise the commands, then explain the concept in your own words.
Users, permissions, systemd, processes, storage, networking and production troubleshooting.
Repository basics, branches, commits, merge workflows and collaborating safely.
Images, containers, Dockerfiles, volumes, networks and Compose-based applications.
Cluster architecture, Pods, Deployments, Services, ConfigMaps and troubleshooting.
Variables, conditions, loops, exit codes, log rotation and backup automation.
Inventory, ad-hoc commands, playbooks, roles, variables and repeatable deployments.
EC2, IAM, VPC, security groups, storage and secure Linux connectivity.
IP addressing, routes, DNS, ports, sockets, packet checks and connectivity issues.
VISUAL LEARNING · KUBERNETES
A simplified view of how requests travel into a cluster and how the control plane manages workloads running on worker nodes.
The API server exposes the Kubernetes API; etcd stores cluster state; the scheduler assigns Pods; controllers reconcile desired state.
Kubelet ensures Pods run, the container runtime runs containers, and kube-proxy or the cluster's networking implementation supports Service traffic.
Deployments manage replicated Pods. Services provide stable access to matching Pods; Ingress or a Gateway can route external HTTP(S) traffic.
Learning diagram: simplified architecture. Exact networking and ingress components depend on the Kubernetes distribution and installed add-ons.
LEARN BY DOING
Use a small lab to turn each topic into repeatable practice. Start simple, inspect the result, then troubleshoot what changes.
Practise service checks, logs, users, disk usage and network diagnostics.
Create a Deployment, expose it with a Service, scale replicas and inspect events.
Create a feature branch, commit changes, merge safely and review history.
QUICK REVISION DESK
A quick reference for daily revision. Try each command in a lab and read its manual page before using it on production systems.
uptimeLoad averages and system uptimedf -hTFilesystem usage and typelsblk -fBlock devices, filesystems and UUIDssystemctl --failedList failed systemd unitsss -tulpnListening TCP/UDP sockets and processesgit statusInspect current working treegit switch -c feature/nameCreate and switch to a new branchgit diffReview unstaged editsgit log --oneline --graphView compact commit graphgit pullFetch and integrate remote changesdocker psList running containersdocker ps -aList all containers, including stoppeddocker imagesList local imagesdocker logs CONTAINERRead container outputdocker inspect CONTAINERInspect configuration and runtime details#!/usr/bin/env bashPortable Bash interpreter declarationset -euo pipefailFail fast on common scripting errorsbash -n script.shCheck script syntaxchmod +x script.shMake script executableecho "$?"Print previous command's exit statusCommands are examples for a lab. Review permissions, environment and impact before running privileged commands on production systems.
ABOUT THE CREATOR
VSC Linux Code is a practical learning space created to document Linux administration, DevOps tools, cloud technologies and hands-on troubleshooting. The goal is to make complex topics easier to understand with clear diagrams, commands and repeatable labs.
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