Networking and tech blog
Cisco Guest Shell is a virtual Linux environment available on certain Cisco devices, it includes Python and provides a platform for hosting and running scripts directly on the device. This blog explores some telemetry options using Guest Shell on Catalyst 9800 wireless controller.
Continue reading “Guest Shell on Catalyst 9800”Wouldn’t it be nice if your smart home was able to detect your presence and perform actions based on whether you are at home or not? It could be switching on the lights when you arrive, or activating the security system when you leave. There are a number of ways this can be done.
The first and most obvious question is – how do we determine if a given person is at home (or when they have left)? A few possible ways are listed below, with all having their pros and cons.
Continue reading “Wi-Fi presence in the Smart Home”The topic today is hidden SSIDs and some misconceptions about the benefits.
Hiding of the SSID is a common feature available in most wireless systems. The basic idea is that if the SSID name is not advertised, no one will know about the wireless network, but this is not entirely true. Hiding the SSID is useful only as a mechanism for protecting against casual onlookers. It holds no significant value as a security mechanism, nor should it be considered a security mechanism, and actually has a couple of disadvantages which can outweigh the benefit of using it.
Continue reading “Finding hidden SSIDs”