Physical penetration testers have this really cool trick where they’ll swap out a lock’s key core with one that always opens, regardless of the key inserted. Unless you specifically test for this condition, you’d never know. …

When you’re statically binding an EPG to a port, you have the option to choose one of three options. Here’s why you never want to never want to select Access (Untagged) and always want to pick either Access-802.1p or Trunk-Tagged. Access (Untagged) If this port were in NX-OS mode, the configuration would…

My team ran into a nasty ACI bug (CSCva68310) that prevents you from adding nodes during setup to an ACI fabric. Here’s a quick write-up so that the next poor soul that spends WAY too much time struggling with fabric provisioning can hopefully get it fixed straightaway. The Topology The team unboxed…

I refuse to use the stock photo of containers on a ship , so here’s a picture of a puppy instead. You’ll be this happy when you realize how easy it is to deploy k8s with CCP. I’ve been spending time deep-diving into Cisco Container Platform (CCP), running on the…

Let’s set the stage. The demo stage. You’re watching a vendor demo. It gives you a perspective of a world full of possibilities, endless optimism, and long weekends at the beach. Your world will be magical: if only you purchase the Infotramatical Elite Defender SaaS Platinum 6000 package. “Better everything, for only $X per month!” Boom! PO…

Most of our large, enterprise companies force their corporate-owned laptops to connect via VPN back to the mothership to access internal resources. However, they force all traffic (Netflix, WebEx, Office 365, etc.) to go through the VPN connection, usually so the traffic flows can be seen by their security perimeter. …

The Daily Mail released an article encouraging gamers to play at reasonable times, citing “Internet congestion” during peak hours. They argue that Internet gamers are responsible for an increase in traffic on the Internet that could disrupt critical business flows. Let’s look at why the Daily Mail article almost got…

Say what? With everyone working remotely, Cisco WebEx, Zoom, Microsoft Teams and Google Hangouts (not to mention the myriad of other providers) are placing unprecedented demand on the global phone network. Every time you join a meeting and use your cell phone to dial in, you use a phone trunk to get…

We’ve gotten a few questions from our clients about using Cisco WebEx to hold all-hands online meetings, either for their employees or customers. Here’s a quick primer on how to ensure that your meetings run smoothly and without interruption, as well as answer some frequently asked questions we get. Let’s…