Install OpenVPN on OpenVZ VPS

What is OpenVPN

OpenVPN  is an open source secured point to point or site to site VPN management which helps the users to connect the network more securely. OpenVPN needs third party client to connect with network. It supports most of the OS including Android & iOS. Also it has individual clients corresponding to the OS. OpenVPN needs a server to connect with. We are going to setup OpenVPN server in Debian based OpenVZ VPS.

 

Pre-requrements:

We need a Debian 32 bit installed OS in in VPS to setup OpenVPN. I prefer Debian 32 bit OS because it consumes less RAM than other OS as well as 64 bit OS. You can even install this if your VPS has only 128 MB RAM (256 brust RAM recommended). Also, Debian 32 bit OS can handle much more bandwidth than 64 bit. It's quite stable for OpenVPN server.

Setting up OpenVPN:

1. At first, make sure that TUN/TAP and PPP module are enabled in your VPS. Run this command to check:

cat /dev/net/tun

if you see this message " cat: /dev/net/tun: File descriptor in bad state

" then TUN/TAP is enabled in your system.

if you see other than this message like " cat: /dev/ppp: No such device or address, Permission denied" or anything else, you have to enable TUN/TAP and PPP module at first. You can enable this from your VPS control panel.

2. Before installing OpenVPN, we should update & upgrade the existing modules. Execute the following commands

apt-get update
apt-get upgrade

3. Now, download OpenVPN server to your VPS (Debian 32 bit only)

wget http://swupdate.openvpn.org/as/openvpn-as-1.8.5-Debian6.i386.deb

4. Install the downloaded server

dpkg -i openvpn-as-1.8.5-Debian6.i386.deb

5. After installing, you should see an admin panel link like this:

https://<your-vps-ip-here>:943/admin

6. Now, setup a password for OpenVPN admin panel.

passwd openvpn

7. Done. Now access the admin panel (which we got from step 5)

username: openvpn
password: your chosen password from step 6

Here you can see the server stats, user logs and their usages and much more. You can control OpenVPN server from here.

8. Now, you need a client corresponding to your OS. Just visit  https://<your-vps-ip-here>:943 and download the client.

Limitation: Currently, only two users can connect simultaneously in your server. If you want more,  you need to buy license from here https://openvpn.net/index.php/access-server/pricing.html

Enjoy high speed VPN.