Articles tagged "linux"
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awk, sed, and grep for Linux Sysadmins: Practical Guide with Real Examples (2026)
Master awk, sed, and grep for Linux sysadmin work in 2026. Parse nginx logs, edit configs in-place, filter processes, and build log analysis pipelines. Every example is real-world.
Kubernetes for Beginners: First Deployment with kind (No Cloud, Free, 2026)
Kubernetes tutorial for beginners 2026. Use kind to run a local K8s cluster with Docker — no cloud account, no cost. Covers Pods, Deployments, Services, ConfigMaps, Secrets, and HPA.
Neovim as a Modern IDE in 2026: LazyVim, LSP, and Essential Plugins
Turn Neovim into a full IDE in 2026 with LazyVim. Mason installs LSP servers, nvim-cmp provides completion, Telescope fuzzy-finds everything, conform.nvim formats on save. Python, Go, TypeScript ready.
Nmap for Sysadmins: Network Scanning and Security Audit Guide (2026)
Nmap tutorial 2026 for sysadmins. Beyond nmap -sV: NSE scripts for TLS audit, CVE detection, EternalBlue check, network inventory, and ndiff for tracking infrastructure changes.
OpenTofu vs Terraform 2026: Migration Guide and Feature Comparison
OpenTofu vs Terraform in 2026. BSL vs MPL 2.0 license, state encryption, CNCF backing, and step-by-step migration guide. Boeing, Capital One, AMD run OpenTofu in production.
Podman Rootless Containers: Docker Without Root or Daemon (2026)
Podman rootless containers tutorial 2026. Run containers without root or Docker daemon on RHEL/Fedora/Ubuntu. Compatible with docker-compose.yml via Podman Compose. Quadlet for systemd production deployments.
Prometheus + Grafana: Linux Server Monitoring from Scratch (2026)
Set up Prometheus 3.10, Node Exporter 1.10, and Grafana 12.4 on Linux from scratch. Import dashboard 1860, write PromQL alerts, configure Alertmanager for Slack and email notifications.
WireGuard VPN on Linux: Complete Server and Client Setup (2026)
Set up WireGuard VPN on Linux in 10 minutes. Configure server, generate keys, add multiple clients, provision mobile via QR code, add pre-shared keys for post-quantum resistance.
Ansible for Linux Sysadmins: Automate Server Configuration with Playbooks (2026)
Learn Ansible for Linux sysadmins. Install Ansible, write your first playbook, use roles, manage inventory, and automate server configuration in 2026.
Docker vs Podman 2026: Which One to Use and Why (Practical Guide)
Docker vs Podman in 2026: architecture differences, security, compatibility, rootless containers, and which one to use for your use case. Practical comparison.