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Ubuntu Autoinstall: The Ultimate Trick for Automated Mass Server Deployment with cloud-init

By admin June 22, 2026

Fully automate the Ubuntu Server installation process with Autoinstall and cloud-init. A detailed guide on creating configuration files and building automated ISOs for mass deployment.

Linux

Protecting Linux Files From Root: Mastering chattr and lsattr

By admin June 22, 2026

Root privileges aren't the final word. Discover the power of chattr and lsattr to lock files, prevent accidental deletion, and harden your Linux server security.

Linux

Mastering OverlayFS: How to Create an ‘Undo Button’ for Your Linux System

By admin June 22, 2026

Learn how to use OverlayFS on Linux to protect system data. This article provides a detailed guide on the Copy-on-Write mechanism and how to create a secure sandbox environment.

Virtualization

Configuring Looking Glass on KVM: The Ultimate Low-Latency Solution for GPU Passthrough

By admin June 22, 2026

Looking Glass is the ultimate solution for sharing a GPU between a Windows VM and a Linux host with sub-1ms latency using Inter-VM Shared Memory (IVSHMEM).

Centos

Mastering LVM on CentOS Stream 9: A Flexible Storage Management Solution for Sysadmins

By admin June 21, 2026

Don't let your server crash due to disk space issues. Here is a detailed guide on configuring LVM on CentOS Stream 9 for flexible storage management and zero-downtime expansion.

Python

Accelerating Microservices: Why I Switched from REST to gRPC with Python

By admin June 21, 2026

gRPC helps reduce payload by 60% and optimizes Microservices latency compared to REST API. This article shares a practical guide with Python and hard-earned lessons from 6 months of production deployment.

MySQL

MySQL Isolation Levels: Don’t Let Transactions Ruin Your Data

By admin June 21, 2026

Dirty Read, Non-repeatable Read, and Phantom Read are classic database errors. Learn how MySQL uses four Isolation levels to protect your data.

VMware

Speed Up VMware VMs: Switching to Virtual NVMe to Unleash SSD Performance

By admin June 21, 2026

Don't let legacy controllers slow down your SSD. A detailed guide on switching to Virtual NVMe on VMware to reduce latency and boost IOPS for Windows/Linux VMs.

VMware

Configuring VMware vSphere Fault Tolerance (FT): Achieving Zero Downtime for Mission-Critical Systems

By admin June 21, 2026

A detailed guide to configuring VMware vSphere Fault Tolerance (FT). Learn how to achieve Zero Downtime, hardware requirements, and practical tips to protect your most critical systems.

Virtualization

Deploy a VyOS Virtual Router on Proxmox/KVM: Firewall, NAT, and Site-to-Site VPN from A to Z

By admin June 20, 2026

A hands-on guide to deploying a VyOS virtual router on Proxmox or KVM, covering stateful zone-based firewall, NAT masquerade, port forwarding, and IPsec IKEv2 Site-to-Site VPN. Follows a practical workflow from installation to a production-ready lab network.

Deploying MySQL 8 on Fedora Server: Production Configuration Guide and SELinux Troubleshooting

Vagrant + KVM/Libvirt: How to Double Your VM Speed on Linux

Gitolite: Ultra-lightweight Git Server Management for 1GB RAM VPS

MongoDB + Python: From Basic CRUD to Advanced Aggregation with PyMongo

Guide to Using git-sizer: “Rescuing” Bloated and Sluggish Git Repositories

Process Python Data Like a Pro with Counter, defaultdict, and deque

VMware vSphere NIOC Configuration Guide: Eliminating Noisy Neighbors and Optimizing Bandwidth

Deploying Metabase with Docker: A Self-Service BI Solution to Replace Manual Data Extraction

Packaging Linux Applications: A Complete Guide to flatpak-builder on Fedora

MySQL 9.0 and VECTOR: Embedding Storage Solution for AI Apps Without a Secondary DB

Protecting Linux Files From Root: Mastering chattr and lsattr

Mastering OverlayFS: How to Create an ‘Undo Button’ for Your Linux System

Configuring Looking Glass on KVM: The Ultimate Low-Latency Solution for GPU Passthrough

Mastering LVM on CentOS Stream 9: A Flexible Storage Management Solution for Sysadmins

Accelerating Microservices: Why I Switched from REST to gRPC with Python

MySQL Isolation Levels: Don’t Let Transactions Ruin Your Data

Speed Up VMware VMs: Switching to Virtual NVMe to Unleash SSD Performance

Configuring VMware vSphere Fault Tolerance (FT): Achieving Zero Downtime for Mission-Critical Systems

Deploy a VyOS Virtual Router on Proxmox/KVM: Firewall, NAT, and Site-to-Site VPN from A to Z