sudo apt-get install pptpd
sudo nano /etc/pptpd.conf
localip 192.168.0.9
sudo nano /etc/ppp/pptpd-options
mdu 1490
mru 1490
sudo nano /etc/sysctl.conf
net.ipv4.ip_forward=1
ptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo nano /etc/ppp/chap-secrets
portforward 1723 to rasppery
/usr/local/bin/noip2