DevOps

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.

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.

Git

Mastering LF/CRLF Issues and Binary File Management with .gitattributes

By admin April 21, 2026

Don't let LF/CRLF line ending errors ruin your commit logs. Here's a guide to configuring .gitattributes to sync Windows and macOS environments while protecting binary files.

Database

Is Your PostgreSQL Disk Bloating? Pro Tips to Fix Bloat and Optimize Autovacuum

By admin April 21, 2026

PostgreSQL disk full due to Database Bloat? Learn how to optimize Autovacuum, use pg_repack, and REINDEX CONCURRENTLY to free up space without downtime.

Centos

OpenSCAP: The Automation ‘Weapon’ for PCI-DSS Security Audits on CentOS for DevOps

By admin April 21, 2026

Don't let security audits become a nightmare. Discover how to use OpenSCAP to automate vulnerability scanning and PCI-DSS compliance on CentOS/RHEL based on real-world DevOps experience.

Network

Mastering Policy-Based Routing (PBR) on Linux: Route Traffic Like a Pro

By admin April 20, 2026

Don't let backup traffic clog your main connection. A detailed guide on using Policy-Based Routing (PBR) on Linux to intelligently route traffic based on source IP and Port.