Cisco ASA initial configuration

Inital configs and image upgrades

http://www.michaelriccioni.com/how-to-configure-and-get-started-with-cisco-asa5505/
http://evilrouters.net/2012/02/15/how-to-upgrade-cisco-asa-software-and-asdm/
http://www.binbert.com/blog/2010/06/enable-ssh-access-in-cisco-asa-5510/

Setting pptp passtrough

hostname(config)# object network my-pptp-server 
hostname(config-network-object)# host 1.1.1.1 
hostname(config-network-object)# nat (inside,outside) static interface service tcp 1723 1723


ref:
http://www.experts-exchange.com/Hardware/Networking_Hardware/Firewalls/Q_27597271.html