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Comparison of RJ45 connectors Cat 5e, Cat 6 and Cat 6a
At first glance, all RJ-45 connectors look the same, regardless of category. However, in practice, there are significant design differences between them that affect connection quality, cable compatibility, and network signal stability. In this article, I have compared RJ-45 connectors… >>>
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Zabbix local network access only
Introduction Zabbix is a powerful monitoring system often used to track server health, network devices, and services. By default, after installation, the Zabbix web interface becomes available not only locally but also from the internet, which may pose a security… >>>
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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 firewall rules and demonstrate how to create an IP blacklist… >>>
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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 40-50% of the declared characteristics. In this article, I will… >>>
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First impression of Cloud Gateway Ultra (UCG Ultra)
On February 21, the new Cloud Gateway Ultra security gateway was announced for sale in the US. After getting acquainted with its advantages, I realized that it is a powerful and modern device. Since I live in Ukraine, I was… >>>
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UXG Lite vs. UCG-Ultra
In this post, I will try to provide a table comparing two modern security gateways Gateway Lite and Cloud Gateway Ultra. I’ll start with the image and graphics specs, UXG Lite on the left and UCG-Ultra on the right Each… >>>
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Overview of UniFi Gateway Lite (UXG-Lite)
Introduction On November 20, 2023, a compact and powerful UniFi gateway with a full set of advanced routing and security features was announced. Thanks to its small size and modern features, this UXG-Lite router immediately became desirable. Since I already… >>>
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Ubiquiti UniFi Cloud Gateway Ultra (UCG-Ultra)
On February 21, 2024, I received a newsletter from Ubiquiti. The topic was IT innovation to accelerate world development. This letter announced the release of the new UniFi Cloud Gateway Ultra and the new USW Ultra switch. I was interested… >>>
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How to install UniFi controller on Raspberry Pi 4
If you are a user of Ubiquity network devices, then this article is for you! Using my example, we will consider how to install a UniFi controller on a Raspberry Pi and see how convenient it is to use devices… >>>
