PPTP Debian/Ubuntu OpenVZ Setup Script

What is PPTP?

PPTP is short for Point-to-Point Tunneling Protocol, a technology for creating Virtual Private Networks (VPNs) quickly. Support is built-in to many operating systems natively, without needing an additional client, unlike OpenVPN.

What does this script do?

This script will automatically PPTP/PoPToP on your OpenVZ VPS in a few of minutes. Port forwarding, server configuration, and authentication setup is all taken care of for you.

What if I want to do it myself?

A manual installation guide is available here for those of you who want to get down and dirty: http://www.putdispenserhere.com/pptp-vpn-setup-guide-for-a-debian-openvz-vps/

How do I install it?

1. Enable PPP and make sure that your VPS has its PPP module working.

Enable PPP in SolusVM

To check, run the following command:

cat /dev/ppp

If your VPS returns this message, then your PPP module is set correctly:

cat: /dev/ppp: No such device or address

If not, then you need to enable it in SolusVM (or disable and re-enable it).

2. Copy and paste these lines into your SSH client of choice:

wget https://raw.github.com/cwaffles/ezpptp/master/ezpptp.sh
chmod +x ezpptp.sh && ./ezpptp.sh

How can I contribute?

I’ve set up a Github repository here that you can fork and submit patches back to.

Script Source:

#!/bin/bash
# Interactive PoPToP install script for an OpenVZ VPS
# Tested on Debian 5, 6, and Ubuntu 11.04
# April 2, 2013 v1.11
# Author: Commander Waffles
# http://www.putdispenserhere.com/pptp-debian-ubuntu-openvz-setup-script/

echo "######################################################"
echo "Interactive PoPToP Install Script for an OpenVZ VPS"
echo
echo "Make sure to contact your provider and have them enable"
echo "IPtables and ppp modules prior to setting up PoPToP."
echo "PPP can also be enabled from SolusVM."
echo
echo "You need to set up the server before creating more users."
echo "A separate user is required per connection or machine."
echo "######################################################"
echo
echo
echo "######################################################"
echo "Select on option:"
echo "1) Set up new PoPToP server AND create one user"
echo "2) Create additional users"
echo "######################################################"
read x
if test $x -eq 1; then
	echo "Enter username that you want to create (eg. client1 or john):"
	read u
	echo "Specify password that you want the server to use:"
	read p

# get the VPS IP
ip=`ifconfig venet0:0 | grep 'inet addr' | awk {'print $2'} | sed s/.*://`

echo
echo "######################################################"
echo "Downloading and Installing PoPToP"
echo "######################################################"
apt-get update
apt-get -y install pptpd

echo
echo "######################################################"
echo "Creating Server Config"
echo "######################################################"
cat > /etc/ppp/pptpd-options <<END
name pptpd
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
ms-dns 8.8.8.8
ms-dns 8.8.4.4
proxyarp
nodefaultroute
lock
nobsdcomp
END

# setting up pptpd.conf
echo "option /etc/ppp/pptpd-options" > /etc/pptpd.conf
echo "logwtmp" >> /etc/pptpd.conf
echo "localip $ip" >> /etc/pptpd.conf
echo "remoteip 10.1.0.1-100" >> /etc/pptpd.conf

# adding new user
echo "$u	*	$p	*" >> /etc/ppp/chap-secrets

echo
echo "######################################################"
echo "Forwarding IPv4 and Enabling it on boot"
echo "######################################################"
cat >> /etc/sysctl.conf <<END
net.ipv4.ip_forward=1
END
sysctl -p

echo
echo "######################################################"
echo "Updating IPtables Routing and Enabling it on boot"
echo "######################################################"
iptables -t nat -A POSTROUTING -j SNAT --to $ip
# saves iptables routing rules and enables them on-boot
iptables-save > /etc/iptables.conf

cat > /etc/network/if-pre-up.d/iptables <<END
#!/bin/sh
iptables-restore < /etc/iptables.conf
END

chmod +x /etc/network/if-pre-up.d/iptables
cat >> /etc/ppp/ip-up <<END
ifconfig ppp0 mtu 1400
END

echo
echo "######################################################"
echo "Restarting PoPToP"
echo "######################################################"
sleep 5
/etc/init.d/pptpd restart

echo
echo "######################################################"
echo "Server setup complete!"
echo "Connect to your VPS at $ip with these credentials:"
echo "Username:$u ##### Password: $p"
echo "######################################################"

# runs this if option 2 is selected
elif test $x -eq 2; then
	echo "Enter username that you want to create (eg. client1 or john):"
	read u
	echo "Specify password that you want the server to use:"
	read p

# get the VPS IP
ip=`ifconfig venet0:0 | grep 'inet addr' | awk {'print $2'} | sed s/.*://`

# adding new user
echo "$u	*	$p	*" >> /etc/ppp/chap-secrets

echo
echo "######################################################"
echo "Addtional user added!"
echo "Connect to your VPS at $ip with these credentials:"
echo "Username:$u ##### Password: $p"
echo "######################################################"

else
echo "Invalid selection, quitting."
exit
fi

This script is built on Denis’s OpenVPN script modified for Debian support and PPTP installation. Source: http://bluemodule.com/software/openvpn-install-script-for-openvz-vps/

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