Networking
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Wireshark 101: The 2025 Beginner’s Guide
If you are like me, when you manage networks, whether in the home lab or production environment, you probably use tools like ping, traceroute, netstat, etc. These are great tools and can help you diagnose simple network problems very quickly.…
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Dell S5224F-ON 25 gig Switch iSCSI Configuration
Recently, I got my hands on a pair of Dell S5224f-on 25 gig switches. These were to be used for a new VMware vSphere installation for a data center refresh, along with Dell EMC storage, Dell servers, etc for a…
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OPNsense Port Forwarding Tutorial Step-by-Step
Port forwarding is a feature that allows you to answer outside traffic requests for a certain service even though the server lives on the internal network. OPNsense is a great open-source firewall that has many features like port forwarding to…
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pfSense Virtual Machine as a Network Firewall
The pfSense network firewall solution is a great free and open-source firewall that many run in their home labs or even SMB environments. PfSense has many enterprise features, and the community edition is free to download and install. Running a…
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Setting DNS in Ubuntu and Troubleshooting
If you are working with Ubuntu servers in your home lab or production environment, you may have seen issues with DNS resolution. One of the reasons that DNS can cause fits in Ubuntu and other Linux distros is multiple files…
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Install Pi-Hole in Ubuntu 24.04 LTS
Pi-Hole is arguably one of the most popular ad-blocking solutions for home networks and home labs. Likewise, Ubuntu is one of the most popular Linux distros around. While Ubuntu 24.04 LTS is still in beta, let’s look at installing Pi-Hole…
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New Unifi Port and VLAN Manager Walkthrough
The new Unifi Network Application release, starting in v8.0.7, is one of the best upgrades to the Unifi Network Application in some time in terms of features and capabilities that will make a difference for administrators. Two of the new…
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Unifi Network Application 8: New Features and Enhancements
The latest release of the Unifi Network Application, version 8 has improved a lot of things for managing Unifi environments in the application for Unifi OS, especially those with many devices and clients, etc. Table of contentsAdmin settings change activityNewly…
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Alta Labs S24 PoE Switch Review
Recently, the great guys over at Alta Labs sent me one of their network switches, an Alta Labs S24-PoE, to take a look at and give my feedback. This is not a paid post or review, so my thoughts are…
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DHCP Snooping configuration: Protect against Rogue DHCP Servers
DHCP snooping is a really good security feature on many switches that helps to make sure only trusted DHCP messages are allowed across your network. Let’s look at how it works and how you can configure it. Table of contentsWhat…
