Although the Palo Alto Networks URL filtering solution, PAN-DB,
allows you to choose between the
PAN-DB Public Cloud
and
the
PAN-DB Private Cloud
. Use the public cloud solution
if the Palo Alto Networks next-generation firewalls on your network
can directly access the Internet. If the network security requirements
in your enterprise prohibit the firewalls from directly accessing
the Internet, you can deploy a PAN-DB private cloud on one or more
M-600 appliances that function as PAN-DB servers within your network.