dbHost usage example:
when defining how slons should connect to node 103
use the alternate host name someapp-db-2ndNIC.backup
this will be used in someapp_slony_replica_set_500_paths.slonik file generation
but not in the someapp_slony_replica_set_500_preamble.slonik
to see this in action, use dbsteward --format=pgsql8 --generateslonik --xml=someapp_v2.xml