aioutecism/gist:2638bb9eaf9ffc13348c

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    Set up a VPN Server (PPTP) on AWS


Create a EC2 instance using Ubuntu 14.04.
In Secure Group Inbound Rules, add a SSH Rule(TCP, Port 22, 0.0.0.0/0) and a Custom TCP Rule(TCP, Port 1723, 0.0.0.0/0).
Optional: Associate a Elastic IP with the instance.
SSH into the instance.
sudo apt-get install pptpd.
sudo vim /etc/pptpd.conf. Uncomment localip 192.168.0.1 and remoteip 192.168.0.234-238,192.168.0.245.
sudo vim /etc/ppp/pptpd-options. Uncomment ms-dns and ms-wins. Change the IP to Google's DNS like this:

ms-dns 8.8.8.8
ms-dns 8.8.4.4

#...

ms-wins 8.8.8.8
ms-wins 8.8.4.4


sudo vim /etc/ppp/chap-secrets. Add VPN users in this format <username> pptpd <passwd> *.
sudo vim /etc/sysctl.conf. Uncomment net.ipv4.ip_forward=1.
sudo /sbin/sysctl -p.
sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE.
sudo vim /etc/rc.local. Add iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE before exit 0.
sudo /etc/init.d/pptpd restart.

OSX Usage


Go to System Preferences > Network.
Click the + button. Choose VPN as interface. PPTP as VPN Type. And enter a name you can understand. Click Create.
Enter your instance's Public IP in Server Address.
Enter your <username> in Account Name.
Click Authentication Settings. Choose Password and enter your <password>.
Click Advanced. Check Send all traffic over VPN connection. Click OK.
Click Apply.
Click Connect.
You are good to go.

iOS Usage


Go to Settings > General > VPN.
Touch Add VPN Configuration....
Choose PPTP.
Enter any name in Description.
Enter your instance's Public IP in Server.
Enter your <username> in Account.
Enter your <password> in Password.
Turn on Send All Traffic.
Save.
Switch on the VPN connection.
You are good to go.