Linux

Improving 10G Performance

When you first make the jump from 1G Ethernet to 10G you will be both impressed with the speed jump and also a bit disappointed that you can’t actually send a full DVD (8GB) in a second. Bottlenecks To get better 10G speed will require resolving many input/output bottlenecks on your network ranging from your disk drives being able [...]




Amazon AWS

Setting up IPv6 on AWS

I used to think that IPv6 is mostly a concern for ISPs and hosting companies to enable and once they do, everything in their system will start using it. Turns out, it isn’t that simple. How the internet hasn’t really felt much of the effect of this is a little beyond me because IPv4 exhaustion occurred at the beginning of [...]



Networking

State of Wifi (2017)

I live in a medium-sized apartment complex and there are 82 networks in range. Connectivity is erratic and bandwidth varies enough to make Netflix/Hulu/Amazon to switch resolution feeds throughout a show. The graph below is from a program called Wifi Explorer and it visuals the 2.4ghz and 5ghz wifi radio spectrum. Along [...]



Networking

WIFI Signal Degrades More Than You Think


Node-RED

Using Node-Red to send commands to Wifi LED Controllers