An embodiment of a method of managing a computer system begins with a step of placing a virtual machine monitor on a computer. One method includes preventing a user from accessing an endpoint that was previously accessed by the user via a first URL including an address with a first port designation, creating a constructive bookmark to the previously accessed endpoint, and establishing a tunnel to the previously accessed endpoint based on the constructive bookmark. The membrane is in fluidic communication with an intersecting gap of the trench that crosses a first input waveguide and a first output waveguide. In closed condition, the stem seals this travel pathway. A height-adjustable mounting system for a rolling basket soil tillage implement is also disclosed for use with a planter that enables such an implement to be raised above the soil as needed to avoid wet conditions. The invention also concerns a method for manufacturing the bumper bar according to claim 1.