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How to Create an IP Blacklist on a Ubiquiti UniFi Gateway Using Zone-Based Firewall
Introduction After analyzing my Postfix server’s activity graph using Zabbix, I discovered that every 5 minutes, an attacker attempts brute-force login attempts. To prevent this, I decided to manually configure… >>>
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Monitoring Postfix activity by Zabbix
Introduction After installing and configuring the Postfix mail server, it became necessary to track various metrics of this server using Zabbix and display a diagram for visual monitoring. Defining the… >>>
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Configuring Email Forwarding in Postfix
Introduction Postfix is a popular Mail Transfer Agent (MTA) that allows email forwarding through various mechanisms. This guide covers user-level forwarding. My Postfix is configured to store email in the… >>>
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Ubiquiti EdgeRouter X – Hardware Offload
Introduction When I bought the Ubiquiti EdgeRouter X router, the first thing I did was test its speed via the speedtest.net website. The results disappointed me: the efficiency was only… >>>
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Review of the Poly BlackWire C3325 (76J21AA) headset
In this review, I explore the Poly BlackWire C3325-M USB-A HS Stereo headset, tested across three sources: smartphone audio, sound quality from the earpieces, and the microphone’s performance. Spoiler: I… >>>
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Seamlessly upgrading Raspberry Pi micro-SD card without loss data and services
When working with a Raspberry Pi, upgrading your SD card to a larger capacity is a common task, especially as your projects grow in scope and require more storage. However,… >>>
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Portable citrus juicer rewiev YZJ-001
In this post, I share my review of the cheep cheniise Citrus Juicer. Model is YZJ-001 but it is no branded. This juicer will come in handy for those who… >>>
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Xiaomi Mi Power Bank 3 Power Bank Review
This review is relevant because winter is coming soon, and the drop in temperature affects the autonomy of the phone, especially if it is already more than a few years… >>>
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HDD Review: Seagate Basic 4 TB (STJL4000400)
I bought a Seagate 4 TB external hard drive, which I tell you about. This is an ordinary hard drive of the basic series. It doesn’t have any special technology… >>>
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Logitech MX S keyboard factory engraving
Have you noticed that sometimes the letters are not arranged in the same way on a multilingual keyboard? In this message, I will try to explain to you why this… >>>