We have several servers, all
RHEL6 (x86_64), that are constantly querying our DNS server for
xmlrpc.rhn.redhat.com. We have
nscd installed and configured on each of those servers and hosts caching is enabled, but doesn't seem to apply to this. Even adding the entry in the hosts file of the servers doesn't stop the DNS queries. Those servers are in a VLAN that doesn't have Internet access, and we are not using a RHN Satellite either.
I thought it was because of the services
rhsmcertd, but the queries continue even if they are stopped and disabled.
Would anyone have an idea where this query is coming from and why it's not observing the local hosts caching in place?