Linux

• installation
• apt-get
• yum

SSH

• SSH, TCP, IP, Network
• default port is 22
• VPS: virtual private server

Digital Ocean server

• ssh root@159.203.25.223

ls -la
mkdir .ssh

• find out local public key from local server

cat ~/.ssh/id_rsa.pub

• add local public key to authorized key on the server
• and when log back in from local to remote server, ssh will no longer prompt for password

sudo apt-get update

• NGINX

forward proxy:

• connect all computer to forward proxy -> internet -> FTS

Reverse proxy:

• single client come from internet go thru proxy and connect to multiple processes

• have to install NGINX as root

sudo apt-get install nginx

ps aux |grep nginx

/etc/nginx/sites-enabled

• create a folder in home directory: apps/main
• create a simple html page

add user

add user team1 --ingroup sudo

• go to /etc/nginx/sites-enabled

sudo vi team3.conf

sudo vi /etc/nginx/sites-enabled/team5.conf

server {
  listen 3000 default deferred;
  # server_name mysite.com;
  root /home/team3/apps/main;
}