Cisco Cisco Email Security Appliance X1050 Guide De Dépannage

Note that many settings can be altered for individual machines or machine groups to override various settings.
The order in which clustered appliances inherit their settings is as follows: 1) MACHINE 2) GROUP 3)
CLUSTER. Some settings such as hostnames and IP interfaces, however, are only available at the machine
level and not replicated to other cluster members.

Please also note that the clustering feature is for configuration management purposes only. It does not provide
any inherent mechanism to prioritize or schedule the flow of e−mail traffic between different members. To
achieve this, one would need to use identical DNS record pre fences (MX) or a separate load balancing device
or some other external mechanism.

To begin with a new cluster, you should choose an appliance that has already been fully implemented as a
standalone machine. This machine should be completely configured with all desired features such as host /
recipient access tables (HAT / RAT), mail flow policies, content filters, and so on. This will be a point of
reference by which you can form the cluster. 

Verify that all machines have their correct IP address and host name.

1. 

Ensure the connectivity to all appliances on the desired port for device communication (using the
'telnet' command).

2. 

Make sure the appropriate service you choose (SSH, CCS, or custom port) has been enabled on the
interface of this machine using 'ifconfig > edit'.

3. 

Create a configuration backup (with passwords unmasked) before continuing by using 'mailconfig' or
'saveconfig' for instance.

4. 

Next, you can create both the cluster and machine groups using the 'clusterconfig' command, and join one or
more additional appliances to it:

Begin the "clusterconfig" configuration sequence and provide a name for your new cluster:

clusterconfig > Create A New Cluster

♦ 

1. 

Define the IP communication parameters, choosing either IP address or hostname resolution.

Note: At this point, the cluster may take a few seconds to build and the changes will be committed
automatically.

2. 

Here you may choose to create a new group before adding machines to the new cluster. When you
create a new cluster, a default group called Main_Group is created automatically.However, you may
decide to rename this or create additional groups using the following commands:

clusterconfig > renamegroup

♦ 

clusterconfig > addgroup

♦ 

3. 

Add new machines to the cluster and group. These steps are to be performed on any remaining
machines that have yet to be made cluster members and can be repeated as needed. The process can
be slightly different depending on the communication protocol chosen earlier.

You will be prompted to start the Cluster Communication Service, which we can

1. 

♦ 

4.