libheartbeat2 1:3.0.4-1ubuntu2 (amd64 binary) in ubuntu natty

 heartbeat is a messaging subsystem for high availability which implements
 serial, UDP, and PPP/UDP heartbeats.
 .
 It is one of the messaging layers supported by the Pacemaker
 cluster resource manager.
 .
 This package contains the Heartbeat libraries to make them available
 to other programs like Pacemaker without having to install the whole
 Heartbeat suite.