In accordance with the present application, a fluid seal 30 and fluid sealing element 32, which are tolerant of fluid F direction reversals are provided. The cover includes a generally flat cover plate which is sized and shaped to cover the vent opening. The spring arm end portions are shaped to provide more resistance to turning of the nut in the looseningback-off direction when the nut is fully torqued on a male fitting assembly than during tightening of the nut on the male fitting assembly. The remote session server maintains a copy of all session information from all caches, and is updated whenever changes are made on each web server. As a result, in the case in which data is output according to the operation of a function included in an electronic device, even if no limitation is imposed to that function, the output of data or information, which the third party should not know about, can be prevented merely by setting the limited mode, in which limitations are imposed on the operation.