The 5Ghz band is normally used for wifi5/wifi6 and supports higher data transfer speed. Wifi5 works exclusively on 5ghz band only, but wifi6 can work on both 2.4 and 5ghz. However you might be surprised to know that even wifi4 (802.11n) supports 5ghz band though it will deliver its lower speed only. A lot of… Read More »
Routers are basically embedded devices (or system), and most modern routers run on linux. Think of it like a mini computer that has its own cpu, storage space, ram memory, ethernet ports, wifi chipset, and optionally a usb port. Functionally these are single board computers similar to a raspberry pi. They software that runs on… Read More »
Lets say you upgraded your home or office network with new wifi routers and devices then you should see if your devices are using the new wifi standards like Wifi5 or Wifi6, to ensure high speed data transfer. On Windows it is easy to check, but on linux we need to run a few commands… Read More »
On a linux system you can get details about the wifi adapter using commands like iw, iwconfig, iwlist, ethtool etc. However if you are a usb wifi adapter then it can be tricky. When you plug a usb wifi adapter on your system, linux will not show the details of the device in the lspci… Read More »
In this article we take a quick look at testing wifi throughput over lan using a simple tool called iperf. Wifi lan speed matters when you are transferring large files across devices. For example transferring a big video or zip file from ipad or smartphone to desktop pc connected on ethernet. Wifi speed is not… Read More »
Ngspice Ngspice is the most popular free circuit simulator. Its available for most platforms including Linux. Whether you are an engineer or just want to play with electronics as a hobby, Ngspice can be a useful tool to simulate circuits and analyse their behavior before actually building them in the lab. This quick tutorial shows… Read More »
Quick tip on How to fix Virtualbox error “Kernel driver not installed (rc=-1908)” on Ubuntu 14.04, Linux Mint 17 and similar Linux distros.
If you are running Ubuntu, Xubuntu or Kubuntu inside virtualbox then install virtualbox guest additions to enable features like shared folders, mouse pointer integration and seamless windows
Fedora 20 (Heisenbug) is currently the latest release and if you want to try it on VirtualBox then install the guest additions for full functionality. Installation is simple and takes a few steps, but involves download and updates which would require some bandwidth. The Guest Additions are compiled from source and loaded as a module…. Read More »
Virtualbox guest additions in Debian Debian 7 wheezy has virtualbox guest additions inbuilt. So after installing debian on virtualbox the guest addition features are immediately available. However the guest additions bundled with debian is general of older version compared to the latest virtualbox version. So its a good idea to install the latest virtualbox guest… Read More »