VPN_LINUX_ODROID_RPI_EASY_RSA3

INTRO

You want to create a VPN very easily ? This script is for you.

Here is the summary about at the configuration suggested in the script:

• Auto install of necessary library

• Auto install of the Openvpn 2.3.14 ( last version available and stable )

• Auto Detection of your private and public IP ( for new and old version of linux which don't use the same process to work )

• You can choose:

  • Ethernet or Wifi to create the VPN server
  • The protocol UDP or TCP
  • The buffer size ( can be usefull in some cases )
  • The port to use
  • The size of key about cryptage with EASYRSA 3

• You can't choose for the moment:

  • The authentification and cipher in 256 bits which is the most secure to your VPN
  • The compression lz0 is disable because that seem to decrease performance.
  • The system with tls-auth is enable to be more secure

NB: If you want to have better performance because you use a lowpowerful device as RASPBERRY PI / ODROID. You can remove the auth and cipher lines in the aim to use the default algorythm of openvpn which is less securised but it consumes less CPU.

HOW CAN I START ?

Clone the repository : git clone https://github.com/kevincaradant/VPN_LINUX_ODROID_RPI.git
Launch with root rights , the script shell : scriptVPN.sh
=> sudo bash ./scriptVPN.sh

CREATE SERVER

If you have already a profile.
Press 1 to create a server and again 1 to load an existing profile.
Otherwise, press 2 and you have to fill in some informations.

CREATE PROFILE

If you create a profile , you will gain time for the next installation if you would to reinstall it on the server Press 3 in the main menu

SHOW A PROFILE

If you just want to see the informations of your profile. Press 4 in the main menu.

DELETE A PROFILE

If you want to delete a profile that you created, Press 5 in the main menu.

RESTORE THE LAST PROFILE

If you have delete by error or anything else reasons, you can restore it by pressing 6 in the main menu.

CREATE / GET CLIENT

Create a client

Use the option 2 in the main menu and just enter a name of client.

On the client computer

You have to get five files ( use FTP with filezilla by example)

• NAME_CLIENT.crt
• NAME_CLIENT.key
• ca.crt
• NAME_CLIENT.ovpn
• tls-auth.key

from /etc/openvpn/client/NAME_CLIENT. That's all.