soulaway

Activate wsl2

dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart
dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
wsl --set-default-version 2

Install and Configure Ubuntu

soulaway

/*!
 * Bootstrap v2.0.4
 *
 * Copyright 2012 Twitter, Inc
 * Licensed under the Apache License v2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Designed and built with all the love in the world @twitter by @mdo and @fat.
 */
article, aside, details, figcaption, figure, footer, header, hgroup, nav,

soulaway

sudo apt update
# 16 x 128 = 2048
sudo dd if=/dev/zero of=/swapfile bs=128M count=16
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo swapon -s
sudo nano /etc/fstab >> /swapfile swap swap defaults 0 0

soulaway

### Tunel remote 8080 to local 8089:
  ssh -L 8089:10.122.3.6:8080 [email protected]

### Execute bash after ssh connection:
  ssh -tt [email protected]<<EOT
#  cd /home/theuser/pathToRemoteApp
#  call mvn,ant,bash 
  exit
  EOT

soulaway

    docker pull cassandra:2.2.7
    docker run --name casdb -p 127.0.0.1:9042:9042 -p 127.0.0.1:9160:9160 -d cassandra:2.2.7

#    To install the default instance of Apache Solr we may pull base docker image, 
#    build an image with articles core inside, and then launch it linking to Cassandra 
#    and exposing name solrsearch and port (step 2 have to be executed from the Dockerfile location)

    docker pull solr
    docker build -t "solrnews" .
    docker run -p 8983:8983 --name solrsearch --link casdb:cassandra -d solrnews

soulaway

# JAMES smptp server on AWS Amazon Linux 2 AMI (java 11)

sudo yum update -y
sudo amazon-linux-extras install docker
sudo yum install docker
sudo service docker start
sudo usermod -a -G docker ec2-user
sudo docker info
sudo yum install git
git clone https://github.com/apache/james-project.git

soulaway

# Jenkins:80:8080

#master:
#update java
sudo yum update
sudo yum install java-1.8.0-openjdk
sudo alternatives --config java

sudo yum install git -y
sudo wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo

soulaway

	#DB on AWS ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-server-20200423 (ami-05c26ae4789875080)
		sudo apt install mysql-server
		sudo mysql_secure_installation
		>>pwd 4 root mysq
		sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf # change bind address to 0.0.0.0
		sudo systemctl restart mysql 
		sudo systemctl enable mysql
		ss -ltn
		sudo ufw allow from any to any port 3306 proto tcp
		#Manage DB

soulaway

The drone is controlled via channels over one of generic frequencies: 915 MHz and 2.4 GHz. 
915 stays for very long range ~20+ km but has some packet losses. 
2.4 GHz. is most often used allowing mutch detailed controll on quite enough range ~10+ km.
Video stream are broadcasting at 5.8GHz
Battery allows average time of flight 5 - 30 minutes.

Book:
  https://oscarliang.com/fpv-dictionary/

TV:

soulaway

sudo wget http://repos.fedorapeople.org/repos/dchen/apache-maven/epel-apache-maven.repo -O /etc/yum.repos.d/epel-apache-maven.repo
sudo sed -i s/\$releasever/6/g /etc/yum.repos.d/epel-apache-maven.repo
sudo yum install -y apache-maven
mvn --version