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Configuring Email Notifications in Zabbix
Introduction When reviewing metrics in Zabbix, sometimes it’s not enough to just check the Current problems section on the dashboard. Zabbix has many additional ways to notify the administrator about… >>>
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Cloudflare: real experience repelling a DDoS attack from russia
Introduction When I bought a domain and decided to deploy a public site on my Raspberry Pi (this blog you are reading now) I knew that a DDoS attack would… >>>
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Configuring PostfixAdmin to manage mailboxes
Introduction Since my Raspberry Pi already has Postfix + Dovecot installed and configured via a DB connection, there is a need to administer mailboxes. For the convenience of administration, it… >>>
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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… >>>
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Raspberry Pi as a KVM hypervisor
Introduction The Raspberry Pi has long transcended its original role as a simple board for enthusiasts: today it is a fully functional mini-computer capable of performing complex tasks, including hardware… >>>
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Monitoring HP LaserJet usage using SNMPv3 with Zabbix
Introduction I use an HP LaserJet MFP M141w multifunction device (MFP). This MFP is quite attractive for home use, as it has quite small physical dimensions, which makes it possible… >>>
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How to Make Full-Width Content in the WordPress
Introduction The Twenty Twenty-Two theme, part of WordPress’s default theme lineup, is built using the modern Full Site Editing (FSE) approach. While this brings a lot of flexibility, it also… >>>
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Creating a Custom Field for the Polylang Plugin in WordPress
Introduction In many WordPress projects, there is a need to translate not only standard interface elements like titles, menus, or post content but also custom strings located, for example, in… >>>
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Zabbix 24-Hour Time Format
Introduction Zabbix is a powerful monitoring tool that by default installs with English (US) locale settings, which means time is displayed in the 12-hour AM/PM format. For users who are… >>>
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How to Enable Multi-Factor Authentication (MFA) in Zabbix
Introduction In today’s world, where cyberattacks are becoming increasingly sophisticated, account security is more important than ever. One of the most effective ways to protect user accounts is through Multi-Factor… >>>
