I use to connect to my remote PPTP VPN server by doing:# pon MyVPNConnection persist holdoff 60 maxfail 0I would like to automate this connection to be executed on system boot, so I have added that line to /etc/rc.local .  But, for what I have heard, it is better to use some other method, like initialization scripts or rc.d.  One of the method that works for me requires adding to /etc/network/interfaces:auto tunnel iface tunnel inet ppp         provider MyVPNConnectionThis works, but only for my installed on hard disk Linux, not for my own customized live distributions, due to /etc/network/interfaces is modified by the squashfs on each boot.  So, there is any other method or initialization script to start my PPTP VPN network connection on boot?  Maybe something like:# update-rc.d pptp enableThis above method works for OpenVPN clients fine.
What are the possible methods to start a PPTP VPN connection on boot?
boot;vpn;pptp