Unleashing the Power of the Cisco Catalyst 9300X (thenetworkdna)

If you've recently added a Cisco Catalyst 9300X to your network, getting it configured properly can feel like a daunting task. That's why this detailed guide from The Network DNA is such a valuable resource. The article walks readers through the complete setup process, starting from the very first boot and progressing all the way to a fully operational enterprise-class deployment. Whether you're a seasoned network engineer or expanding your Cisco skills, the step-by-step approach makes the process easy to follow.

The Trade-offs of Access Point-Driven RF Scanning

When a wireless access point is used to perform an RF (radio frequency) scan of its surrounding environment, it must temporarily or partially shift its radio hardware away from its primary role of serving client traffic. Most enterprise-grade access points operate in what is called "channel scanning mode" or leverage an integrated spectrum analysis engine, but in either case the radio must sweep across channels it is not currently serving. This creates an inherent tension: the same radio that is listening for interference on channel 11 is not, at that moment, beaconing or acknowledging frames on channel 6. For single-radio APs, this means client associations drop or degrade during the scan window. Even on dual- or tri-radio platforms, dedicating one radio to scanning reduces the available capacity for client load balancing or band steering, and the scanning radio's physical placement — fixed to a ceiling or wall — limits its ability to capture a spatially accurate picture of the RF environment from the perspectives that matter most, such as where a user is seated or where a device is roaming.

C0XMO: The Router Botnet That Doesn't Just Infect—It Eliminates the Competition

A newly discovered botnet called C0XMO is raising concerns across the cybersecurity community after researchers uncovered its ability to exploit vulnerable DD-WRT routers, spread across multiple device types, and aggressively remove competing malware from infected systems. Based on the well-known Gafgyt malware family, C0XMO targets a wide range of processor architectures, making it highly adaptable and capable of compromising routers, DVRs, Android-based devices, and other internet-connected equipment.

Wifi Auto Doesn't Mean Optimal - Things to look out for

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Channel chaos: your AP is fighting neighbors it can't see

Auto channel selection sounds smart, but most vendors run a quick scan at boot time and picks a channel based on what's visible in that moment. It doesn't continuously adapt, and it can't account for non-Wi-Fi interference sources like baby monitors, microwaves, or Bluetooth clusters. In a dense apartment building or office, every AP is probably also running Auto — meaning everyone lands on the same "least busy" channel simultaneously. The result is coordinated co-channel interference that degrades throughput for everyone. A manually chosen, spectrum-

The Battle for Your Android: Why “Open” Still Matters

KeepAndroidOpen.org is a grassroots campaign focused on defending one of the core promises Android was built on: the ability for users to freely install and run the apps they choose. The site highlights proposed changes to Android’s developer verification system that could centralize control over app distribution under a single authority. According to the campaign, this shift risks turning an open ecosystem into a tightly controlled environment where even sideloaded or independently distributed apps would require prior approval.