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Configuring DNSSEC for Linux: Don’t Let Your Website Get Hijacked Even with SSL

By admin April 22, 2026

DNSSEC is a mandatory security layer to prevent DNS Spoofing. This article provides a detailed guide on configuring BIND9 on Linux, creating ZSK/KSK keys, and setting up the DS Record trust chain.

Docker

Kaniko: Building “Clean” and Secure Docker Images Without Root Privileges

By admin April 22, 2026

Build Docker images securely without root privileges or a Docker Daemon. A detailed guide on using Kaniko to optimize security and performance for your CI/CD pipelines.

Security

Moving from iptables to nftables: Why It’s a Mandatory Step for SysAdmins

By admin April 22, 2026

Iptables is outdated and slow. Discover how nftables optimizes firewall performance, supports IPv4/IPv6 simultaneously, and how to safely migrate your Linux system.

Development

Building High-Speed Microservices with Go and gRPC: From Theory to Practice

By admin April 22, 2026

Learn to build high-speed microservices with Go and gRPC. A detailed guide on reducing latency by 40% and optimizing inter-service communication using Protocol Buffers.

Linux

Boosting Linux Server I/O Performance: noatime and tuned profile Tips

By admin April 22, 2026

A quick guide to optimizing Linux I/O performance by configuring noatime and using tuned profiles to reduce system latency.

Artificial Intelligence tutorial - IT technology blog

CLAUDE.md: The “Map” That Helps Claude Code Master Your Project in Seconds

By admin April 22, 2026

Use CLAUDE.md to give AI a deep understanding of your project, ensure coding style compliance, and work like a Senior Developer. Detailed guide with examples.

MySQL

MySQL 8: Leveraging Functional and Invisible Indexes to Handle Millions of Records

By admin April 22, 2026

Discover how to optimize MySQL 8 with Functional and Invisible Indexes. Speed up JSON and date queries while safely testing indexes in production environments.

Monitoring

Prometheus Blackbox Exporter: Monitor HTTP, DNS, TCP and SSL Certificate Expiry

By admin April 21, 2026

Prometheus Blackbox Exporter monitors websites, TCP ports, DNS resolution, and SSL certificates from the end-user's perspective — no agent installation required on each server. This guide covers installation, configuring HTTP/DNS/TCP modules, and setting up SSL expiry alerts integrated with Alertmanager.

Security

Turning Linux into a Database: Querying and Security Monitoring with osquery

By admin April 21, 2026

Stop struggling with Bash scripts. Learn how to use osquery to query the Linux operating system using SQL, making security monitoring and infrastructure management 10x more efficient.

Biome: Say Goodbye to the ESLint and Prettier ‘Maze’ to Speed Up Your Projects by 25x

Optimize Proxmox VE in 5 Minutes with Helper Scripts: Remove Subscription Nag and Configure Standard Repos

Automating Ubuntu Server Hardening to CIS Benchmarks Standards with USG

Why I Ditched Requests for Httpx: A Guide to Async HTTP Client and HTTP/2 for Python

Mount and Edit qcow2, vmdk Files Directly on Linux Using NBD: Fast, Simple, No VM Boot Required

Mastering Type Checking in Python with Mypy: Stop TypeErrors Before Deployment

Installing SoftEther VPN on Linux: A Powerful ‘All-in-One’ VPN Solution

Professional NVIDIA GPU Monitoring with Prometheus & DCGM Exporter: Don’t wait for a ‘burnout’ to fix it

Circuit Breaker in Node.js with Opossum: Don’t Let One Failing Service Bring Down the Whole System

Using Vision LLM to Convert Architecture Diagrams to Terraform: From Sketch to Source Code in 30 Seconds

Configuring DNSSEC for Linux: Don’t Let Your Website Get Hijacked Even with SSL

Kaniko: Building “Clean” and Secure Docker Images Without Root Privileges

Moving from iptables to nftables: Why It’s a Mandatory Step for SysAdmins

Building High-Speed Microservices with Go and gRPC: From Theory to Practice

Boosting Linux Server I/O Performance: noatime and tuned profile Tips

CLAUDE.md: The “Map” That Helps Claude Code Master Your Project in Seconds

MySQL 8: Leveraging Functional and Invisible Indexes to Handle Millions of Records

Prometheus Blackbox Exporter: Monitor HTTP, DNS, TCP and SSL Certificate Expiry

Turning Linux into a Database: Querying and Security Monitoring with osquery