How to text with a $30 Radio Board

Imagine sending a text message to someone hundreds of miles away — no cell towers, no Wi-Fi, no cloud servers, no monthly bill. Thanks to the convergence of affordable hardware and open-source ingenuity, this isn't science fiction anymore. A cheap radio board, small enough to fit in your palm, is all the hardware you need to step completely outside the bounds of traditional telecommunications infrastructure.

The DNS Security Deep Dive You Didn't Know You Needed (Chris Greer)

DNS is the internet's phone book, and attackers have been exploiting it for decades — yet most professionals still aren't sure how to properly defend it. In this eye-opening interview on Chris Greer's channel, host Chris sits down with Ross Gibson, an engineer at Infoblox and contributor to the latest NIST guidance on DNS security, to cut through the confusion and explain what modern DNS protection actually looks like in practice.

AI Tools For Packet Analysis - webinar with Betty

 

Join the inspiring community at Women’s Society of Cyberjutsu

 for an exciting cybersecurity event designed to empower, educate, and connect professionals at every stage of their cyber journey. This dynamic experience brings together students, seasoned practitioners, and industry leaders for a day packed with hands-on learning, engaging discussions, and valuable networking opportunities. From expert-led sessions to interactive challenges, attendees will gain practical skills while exploring the latest trends shaping today’s cybersecurity landscape.

Optimizing your WiFi Network with the NetAlly AirCheck G3

 

We’ve all heard that transforming a sluggish Wi-Fi network into a high-performance powerhouse requires meticulous planning and a sharp strategy. 

This is where you, the Wi-Fi engineer must perform a thorough analysis. This begins with a comprehensive site survey to identify legacy 802.11b devices—such as industrial barcode scanners or outdated medical equipment that may still be active on the Wi-Fi network.

By ditching the dead weight and turning off 802.11b legacy data rates you essentially clear slow-moving tractors off a racetrack. These airtime vampires (1, 2, 5.5, and 11 Mbps) force your modern APs to broadcast essential management frames at a snail's pace.  By removing these ancient speeds, you slash overhead, reclaim massive amounts of airtime, and force your Wi-Fi network into a high-performance lane where only the fast survive! 

Lab - WAN port testing

There’s a big difference between hoping new gear will behave the way you want and knowing it will. That’s where lab testing earns its keep. Before rolling out the Ubiquiti UISP Router Pro into production, taking the time to validate its behavior in a controlled environment gives you the confidence to push boundaries without risking downtime. In our case, we’re not just swapping hardware—we’re transitioning from tried-and-true EdgeRouters to a newer platform, and that means assumptions need to be tested, not trusted.

Trust, But Verify: Lab Router Failover Testing

 There’s a special kind of confidence that comes from being told “it should just work”—especially when it comes to networking gear. In this case, the guidance was simple: adjust the routing table distance value on a Ubiquiti UISP Router Pro and failover would behave exactly as expected. But as any seasoned network engineer knows, “should” and “does” don’t always live in the same neighborhood. That’s where lab testing proves its worth. By recreating real-world conditions in a controlled environment, you move from assumption to certainty, validating not just configuration changes but the actual behavior of the system under stress.

woo hoo - the Youtube channel just hit 14,000 subscribers

 Thank you for all you support, likes and shares.

https://www.youtube.com/user/thetechfirm

Networking Advice.. Cover up!

If you’ve ever unboxed new network gear, you’ve probably noticed all those tiny plastic caps covering ports—especially on fiber modules. Most people toss them aside without a second thought. But those little covers actually play a bigger role than you might expect. In my video, I demonstrate putting the SFP dust cover back on a Ubiquiti UISP Router Pro after removing my sfp to copper transciever Its a simple habit that can save a surprising amount of trouble down the road.

Why Every Wireshark User Needs to Update Right Now

If your network toolkit depends on Wireshark — and chances are it does — a critical new security update demands your immediate attention. Wireshark, the world's most widely used open-source network protocol analyzer, has released a major security update addressing over 40 vulnerabilities, several of which enable arbitrary code execution through malformed packet injection or malicious capture files. The tool trusted to keep networks safe has itself become a target, and the scope of this disclosure is unlike anything the project has seen in recent memory.

Clean Up Your Wireshark .. Ads??

If you’ve ever opened a packet capture in Wireshark and felt like you were staring into a noisy mess of irrelevant traffic, this Chappell University tip hits home. The article focuses on a simple but powerful idea: not all traffic deserves your attention. By removing the new ad , analysts can dramatically declutter their view and zero in on what actually matters. It’s less about “blocking ads” in the traditional sense and more about stripping away distractions so your analysis becomes faster and more precise.