A connecting system for providing a fluidic connection, preferably between containers, wherein the connecting system has at least two connecting arrangements configured to provide the fluidic connection, namely a first connecting arrangement and a second connecting arrangement, each of which is fluidically sealed in an initial state, wherein the first connecting arrangement has, in particular, an opening region that is deformable outside the opening region and is configured such that deformation causes the first connecting arrangement to open in the opening region.