Can a portable generator be hooked up as a permanent one?

Be very careful putting it in the cabin area. Fumes from the gas even residual could play havoc. Folks buy the toy haulers and I read where they say to not cook etc with the vehicles inside. If not towing put it on a receiver hitch setup out back. WIll have vibrations when running. Get a good cable lock, one of the kryptonite ones and secure thru frame of genset to the rv. If towing a small vehicle put in trunk or bed if its a pickup. again secure with the cable lock.