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Installation & Upgrades
2. Using the Linux UI, make sure Firewall is disabled. If the firewall is enabled, MySQL will
not work.
3. Open /opt/netc/config/ems.xml and uncomment the HA_VirtualIP property and enter the
correct virtual IP address. Perform this step on both servers.
!<--<property name="HA_VirtualIP" type="String" value="192.168.64.115>
<description>
Virtual IP Address of the HA framework.
</description>
</property>
4. Since the Heartbeat application will be responsible for starting and stopping NetConductor,
it is necessary to prevent the netc service from starting at boot time. Again, execute the following command in both servers:
#chkconfig --level 0123456 netc off
5. The /etc/hosts file on both the servers must have entries for the other server. Execute the
following command to get the host names of the EMS 1 and EMS 2 servers.
#uname -n
6. Next edit the /etc/hosts file for EMS 1 and add the information for EMS1 and EMS 2 entry in
it.
#vi /etc/hosts
After editing, the hosts file of EMS1 should have the following entries:
192.168.64.100 EMS1 localhost.localdomain localhost
192.168.64.102 EMS2
The hostname values for EMS1 and EMS2 are determined by typing uname -n from
EMS1 or EMS2.
Repeat the same steps on the EMS 2 server and add an entry for EMS 1 host name.
192.168.64.102 EMS2 localhost.localdomain localhost
192.168.64.100 EMS1
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