Install openvpn in Ubuntu 14.04

Reference - https://www.digitalocean.com/community/tutorials/how-to-set-up-an-openvpn-server-on-ubuntu-14-04
apt-get update
apt-get install openvpn easy-rsa
gunzip -c /usr/share/doc/openvpn/examples/sample-config-files/server.conf.gz > /etc/openvpn/server.conf
vim /etc/openvpn/server.conf
Edit dh1024.pem to say:
dh2048.pem
Uncomment push "redirect-gateway def1 bypass-dhcp" so the VPN server passes on clients' web traffic to its destination. It should look like this when done:
Uncomment push "dhcp-option DNS 208.67.222.222" and push "dhcp-option DNS 208.67.220.220". It should look like this when done:
The dns servers should be configured in the clients dns as well.