👋 Hello

StackOverWork is a collection of stories and notes from my journey in the IT world—simple records of what I tried, what broke, and what worked.

Regards,

dng.

Contact me at:

[email protected]

🐧 Linux

  1. Linux Distro Overview
  2. Install OS (Ubuntu/Debian/RHEL)
  3. Linux Baseline Best Practice
  4. User & Group Management
  5. Filesystem Hierarchy
  6. File Permission & Ownership
  7. Package Management (apt, yum, dnf, snap)
  8. Systemctl & Service Management
  9. Crontab & Scheduled Tasks
  10. Process Management (ps, top, htop)
  11. Log Management (journalctl, /var/log)
  12. Networking Basics (IP, DNS, Routes)
  13. Firewall (iptables, ufw, nftables)
  14. SSH Setup & Hardening
  15. File Transfer (scp, rsync, sftp)
  16. Disk Partitioning (fdisk, parted, LVM)
  17. Mount & Fstab Configuration
  18. LVM Basics (create, extend, snapshot)
  19. RAID Setup (mdadm)
  20. Swap & Memory Management
  21. System Performance Tuning (sysctl, ulimit)
  22. Kernel Upgrade & Modules
  23. Install Web Server - Nginx
  24. Install Web Server - Apache2
  25. Install PHP & PHP-FPM
  26. Install MySQL / MariaDB
  27. Install PostgreSQL
  28. DNS Server (Bind9, dnsmasq)
  29. Mail Server Basics (Postfix, Dovecot)
  30. FTP & SFTP Setup
  31. Proxy Server (Squid)
  32. Load Balancer (HAProxy, Nginx)
  33. SSL/TLS Certificates (Let’s Encrypt)
  34. Fail2ban Setup
  35. AppArmor & SELinux
  36. Backup with rsync & tar
  37. Snapshot & Restore (LVM/ZFS)
  38. Centralized Logging (Rsyslog, ELK)
  39. Monitoring with Prometheus & Grafana
  40. System Resource Monitoring (sar, iostat)
  41. Containerization with Docker
  42. Podman vs Docker
  43. Basic Kubernetes Admin Tasks
  44. Virtualization with KVM/QEMU
  45. Proxmox Basics
  46. VirtualBox Setup
  47. Ansible Basics
  48. Bash Scripting for Automation
  49. Python for Sysadmin
  50. Troubleshooting Boot Issues (grub, initramfs)
  51. Network Troubleshooting (ping, traceroute, tcpdump)

🪟 Windows

  1. Install
  2. Networking

📂 Cloud Computing

  1. GCP
  2. AWS
  3. Azure

🌐 Networking

  1. IP Address
  2. Routing
  3. OpenVPN
  4. Firewall
  5. SDN

📡 IOT

  1. SmartCCTV
  2. SmartHome
  3. MiniPC (ARM)

⚙️ Hypervisor

  1. VMWare
  2. Proxmox VE
  3. XCP-ng

💾 Backup Solution

  1. Veeam
  2. Vinchin
  3. Proxmox Backup

🧰 Other Stuff

  1. Troubleshoot

Disclaimer!

All the content written here comes from my personal experiments and lab environments. It does not reflect or represent any official production systems at work. Use the information with care, and always test before applying it to real environments.