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Notes on cybersecurity, networking, and infrastructure.

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How to Fix the HP LaserJet P2055d Power Button Flashing Issue (No Initialization)

When your HP LaserJet P2055d becomes completely unresponsive—displaying no initialization, making no sound, and showing nothing but a continuously flashing power button—it usually points to a specific hardware fault. Rather than tossing the unit, you can easily revive it with a quick internal adjustment.

Jul 10, 2026

Complete Walkthrough: Deploying Zabbix 7.4 on an Azure Virtual Machine (Ubuntu 24.04)

Monitoring network infrastructure and cloud resources is a critical component of modern IT and information security. Having a centralized, robust monitoring solution allows us to keep an eye on performance, detect anomalies, and prevent downtime.

Jul 5, 2026

HPE Storage Array COMPLETE DEPLOYMENT GUIDE From Ground Zero Equipment to Production

In this comprehensive technical blog, we will walk you through the end-to-end deployment process of HPE enterprise storage arrays, covering everything from environmental prerequisites to advanced workload tuning.