Andrew and Alptekin.
Thanks for the heads up.
I don't know why I did not think of logging into my system and accessing it from there.
I am going to use Remote Desktop, to login to my Development Laptop.
And use it to remote desktop to all the other machines, to shut them down.
As I said, I don't know why I didn't think of this.
Thanks, guys.
This works great.
either you are fluent with the command line, and ssh access will be enough for you, or you rather should use a vpn. chances are your existing firewall features remote vpn access.