Cisco Cisco Email Security Appliance C170 User Guide
39-6
AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
Chapter 39 Centralized Management Using Clusters
Creating and Joining a Cluster
Joining an Existing Cluster
From the host you want to add to the cluster, issue the
clusterconfig
command to join the existing
cluster. You can choose to join the cluster over SSH or over CCS (cluster communication service).
In order to join a host to an existing cluster, you must:
•
be able to validate the SSH host key of a machine in the cluster
•
know the IP address of a machine in the cluster and be able to connect to this machine in the cluster
(for example, via SSH or CCS)
(for example, via SSH or CCS)
•
know the administrator password for the admin user on a machine belonging to the cluster
Joining an Existing Cluster over SSH
The following table demonstrates adding the machine
losangeles.example.com
to the cluster using the
SSH option.
losangeles.example.com> clusterconfig
Do you want to join or create a cluster?
1. No, configure as standalone.
2. Create a new cluster.
3. Join an existing cluster over SSH.
4. Join an existing cluster over CCS.
[1]> 3
While joining a cluster, you will need to validate the SSH host key of the remote
machine to which you are joining. To get the public host key
fingerprint of the remote host, connect to the cluster and run: logconfig ->
hostkeyconfig -> fingerprint.
WARNING: All non-network settings will be lost. System will inherit the values set at
the group or cluster mode for the non-network settings. Ensure that the cluster
settings are compatible with your network settings (e.g. dnsconfig settings)
Do you want to enable the Cluster Communication Service on
losangeles.example.com? [N]> n
Enter the IP address of a machine in the cluster.