The keepalived server implements the vrrpd routing demon
which enables routing failover for a pair (or set) of routers
(or LVS directors)
and the keepalived demon which sets up and does the health checking
of virtual services in a Linux Virtual Servier.
Only run the VRRP subsystem.
Only run the healthchecker subsystem.
leave (don't remove) VRRP VIPs & VROUTEs on daemon stop.