Cluster

Menu path: Configuration > System Configuration > Cluster.

The Cluster page displays the addresses and states of all cluster members. Clustering theory of operation is described in Clustering.

The fields on this page are:

Field	Usage	Example
Shared Key	The key shared among the cluster members for use in the Virtual Router Redundancy Protocol (VRRP).	67987
Virtual Router Id	The router ID used in VRRP for keepalive messages.	50
RADIUS authentication on management	If enabled, RADIUS authentication requests will be processed on the management server - the current load balancer. If disabled, the management server proxies requests to other servers. This is useful if the load balancer cannot handle both tasks. The radiusd server must be restarted after a change to this setting.
Network Interfaces	A list of the VIP interface addresses for the cluster interfaces.
Cluster Node List	A list of all the members of the cluster, with their host name, IP address, type of Master or Member, and Status. The name of any cluster member can be edited by selecting it. Any non-master can be deleted by selecting the check box next to its name and pressing the button. Removal of a cluster node will cause a restart of all services and can take a few minutes to complete.

The SAVE and RESET buttons apply to the Shared Key and Virtual Router Id settings only.

• Any change of host name or removal of a cluster node will cause an automatic services restart for all nodes. This can take a few minutes to complete.