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Comparison of RJ45 connectors Cat 5e, Cat 6 and Cat 6a

In this comparison of RJ45 connectors Cat 5e Cat 6 Cat 6a, we will look at how internal design impacts high-speed networking. At first glance, all RJ-45 connectors look the same, regardless of category. However, in practice, there are significant… >>>
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Mission Center – Windows-style task manager

The power of the graphical interface In the Linux world, it is traditionally customary to focus on text interfaces. However, for those seeking a modern UI, the Mission Center task manager for Linux offers a familiar Windows 11 experience. Here… >>>
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How to use Raspberry Pi Connect

Introduction One of the most convenient ways to remotely control a Raspberry Pi has traditionally been to use a VNC server, which allows you to access the Raspberry Pi’s graphical interface via a local network or from the outside. However,… >>>
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Website availability monitoring using UptimeRobot

Introduction Setting up website availability monitoring using UptimeRobot is a crucial final step for anyone hosting a blog or service on a home server. While local tools tell you how your hardware is performing, UptimeRobot acts as an external observer,… >>>
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Configuring Email Notifications in Zabbix

Introduction In this guide, I will describe in detail configuring email notifications in Zabbix via SMTP, so you can stay informed without constantly checking the dashboard. When reviewing metrics in Zabbix, sometimes it’s not enough to just check the Current… >>>
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Cloudflare: real experience repelling a DDoS attack from russia

Introduction When deploying a public site on a home server, implementing Cloudflare DDoS protection Raspberry Pi security is an essential step to ensure uptime. In this post, I share my real-world experience using Cloudflare’s free plan to successfully fend off… >>>
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Configuring PostfixAdmin to manage mailboxes

In this post, I will describe the process of configuring PostfixAdmin to manage mailboxes on a Raspberry Pi, providing a stable and user-friendly web interface for your mail server. Introduction Since my Raspberry Pi already has Postfix + Dovecot installed… >>>
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Telegram bot for electricity monitoring

Introduction russia’s massive attacks on Ukraine’s energy infrastructure have led to large-scale power outages (blackouts). This has created everyday problems for ordinary civilians, including: teaching children in the evening without electricity, moving elderly people around in high-rise buildings, cooking food… >>>
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Raspberry Pi as a KVM hypervisor

Today, the Raspberry Pi is a fully functional mini-computer capable of performing complex tasks, including acting as a Raspberry Pi KVM hypervisor for hardware virtualization. Introduction This article provides a step-by-step guide to installing Raspberry Pi OS Lite, configuring SSH… >>>
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Monitoring HP LaserJet usage using SNMPv3 with Zabbix

In this guide, I will explore monitoring HP LaserJet usage using SNMPv3 and Zabbix, turning a simple home MFP into a well-managed network asset. Introduction I use an HP LaserJet MFP M141w multifunction device (MFP). This MFP is quite attractive… >>>
