Newbie question: how to tie down camper on the truck?

If you truly want to off road the truck and camper, you really should consider getting rid of the extra long camper and get a shorter one that ends at the truck bumper, or not too far beyond, and doesn't hang down below the truck bumper either. A big camper like that is bound to have its tail end crunched up or rear jacks torn off, when crossing dips in the trail.