We demonstrate the potential of nuclear relaxation for studying the microdynamics of molecular liquids in confined and porous systems, with particular emphasis on solid-liquid interfaces. We have observed both a reduction and an anisotropy in the molecular reorientation dynamics of liquids on nanometric pore surfaces under different temperature and pressure conditions. The magnetic field cycling NMR technique has also allowed us to observe abnormal diffusion of water among glass beads with calibrated pores.