nfarrar

EMR Spectrum

• the the shorter wavelength allows them to more easily penetrate the structure of buildings
• Knife-edge propagation is the term used to describe when signals are partially refracted around solid objects exhibiting sharp edges
• wavelength in meters equals 300 divided by frequency in megahertz

nfarrar

Radio Bands

Band

Frequency

Allocation

Channel

Notes

vjm

sudo apt-get install -y supervisor

sudo mkdir /usr/share/elasticsearch
cd /usr/share/elasticsearch

sudo wget https://download.elasticsearch.org/kibana/kibana/kibana-4.0.1-linux-x64.tar.gz
sudo wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.4.4.tar.gz
sudo wget https://download.elasticsearch.org/logstash/logstash/logstash-1.4.2.tar.gz

sudo tar -zxvf elasticsearch-0.90.0.tar.gz

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname