Why doing this?

The initiative is to save money and time. I only want a VPN when I am at home. This means that I need to find a way to easily start and stop EC2 instances on my own computer. If you do not care the money or use the VPN all day, you do not need this tool.

Pre-requisites

• AWS CLI
• Shadowsocks client
• Create a AWS EC2 instance to run shadowsocks server

How to install and configure AWS CLI

Please refer to the official site.

How to install Shadowsocks Client

Run the following commands:

sudo apt-get install python-pip
pip install shadowsocks

How to create and configure EC2 instance

Please refer to official site on creation of EC2 instance. I created a t2.nano instance with Ubuntu 14.04 installed. Then I installed the shadowsocks on EC2 instance(same procedures as Pre-requisites section). Next I appended command sudo ssserver -k "password" -d start to /ect/init.d/rc.local. This line of code configures the shadowsocks server running when EC2 instance is started.

Configure the variables

Open main.go with any editor you like. There are 3 variables instance_id, psd_text and local_port.Change the values of these 3 variables according to your own configuration. Then build the project as specified at Build the project section.

Build the project

Go to the root folder of your codes and run the following commands to build the executable.

export GOPATH=$PWD
go install auto-vpn

a bin folder will be generated under your $GOPATH. The following commands are provided:

• auto-vpn start
• auto-vpn stop
• auto-vpn status

auto-vpn start

start AWS instance and sslocal

auto-vpn stop

stop AWS instance and sslocal

auto-vpn status

print the current AWS status and its publie DNS name if it exists.