A graph is distance-hereditary if and only if each cycle on five or more vertices has at least two crossing chords. We present linear time algorithms for the minimum r-dominating clique and maximum strict r-packing set problems on distance-hereditary graphs. Some related problems such as diameter, radius, central vertex, r-dominating by cliques and r-dominant clique are investigated too. 							
						
							
					 															
					Feodor F. Dragan