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C H A P T E R 4 Scenario 2
43
Site 3
Step 3. Create the delegated zones for the hostnames and
the authority records for each zone.
Since 7190s are deployed at every site there is no reason to not utilize
all of them to their full capabilities. All that is required to do this is to
make all of the 7190s authoritative for both zones. Note that there is
no need for the ns3 and ns4 to be listed as authoritative in the
div1.mstd-ex.com zone. Further note that the 7190s used for hot
standby redundancy are not listed as authorities. If it were not for the
requirement of using Flash Response Mode for balancing
www.div2.mstd-ex.com, there would need to be only two 7190s in
the entire network. A 7190 only needs to be collocated (on the same
network) with a site if Flash Response Mode is used and the load
balancers are not configured as a primary Flash source for
performance reasons.
config dns zones
create div1.mstd-ex.com
div1.mstd-ex.com
create-authority ns1.mstd-ex.com ip 10.1.1.1
create-authority ns2.mstd-ex.com ip 10.1.1.2
create-authority ns3.mstd-ex.com ip 10.1.1.3
create-authority ns4.mstd-ex.com ip 10.1.1.4
Site 3
7190
Router
ns3.mstd-ex.com
10.1.3.1
www.div2.mstd-ex.com
10.2.3.103:80
7190
ns4.mstd-ex.com
10.1.3.2
Server
generic
load balancer
internet