Cluster: Configure Atlas Technology for Load Balancing

Management > Cluster

Large-scale geographic deployments benefit from Bomgar Atlas Cluster technology, establishing a single Bomgar site across multiple appliances, which are termed nodes in a cluster. The master appliance/primary master node is the site of most administration tasks. The traffic node is a Bomgar Appliance that participates in effectively routing your support traffic.

Find more information about Atlas in the Bomgar Atlas Technology Guide, available at www.bomgar.com/docs.

Inter-appliance Communication Pre-shared Key

First, go to /login > Management > Security and be sure all nodes have identical Inter-appliance Communication Pre-shared Keys. Next, configure the nodes.

Cluster :: Status

On the primary master node, go to /login > Management > Cluster. From this page you will configure both the primary master itself and the traffic nodes. The Cluster :: Status section at the top of the page confirms the role of the site instance from which you accessed the page, and it displays buttons to Sync Now and to Disband Cluster. A toggle allows you to show or hide the Status History records.

Cluster :: Master Node Configuration

To configure, first locate the Master Node Configuration section and enter the following information in the fields:

  • Name: Enter a name that you will use to remember this node in the cluster.
  • Public Address:
    1. Enter the hostname you set up in DNS for this node.
    2. Enter the port over which clients will communicate with the node.
  • Internal Address: This can be the same as the public address. Advanced configurations can optionally set this to a different hostname for inter-appliance communication.

Click the Create New Cluster button to establish your primary master node. After a primary master node is set up, edit the settings and then click Update Primary Node.

The Master Node Configuration section also contains a setting for Maximum Client Fallback to Master, allowing the number of clients you set to fall back to using the master for traffic control if necessary.

Method for Choosing Traffic Nodes

Next, remaining on the primary master node Cluster page, locate the Cluster :: Traffic Nodes section. Any existing traffic nodes and settings appear here. Locate the dropdown selector for Method for Choosing Traffic Nodes. This selector is used to define how a traffic node is chosen for a representative or customer client connection. The available methods for defining the connection are Random, A Record Lookup, SRV Record Lookup, IP Anycast, and Timezone Offset. Your choice of connection method is highly dependent upon your network infrastructure, among other complex considerations. Please refer to the Methods for Choosing Traffic Nodes section in the Bomgar Atlas Technology Guide for details.

Click the Add New Traffic Node button.

Cluster :: Add Traffic Node

Next, enter the following information on the Cluster :: Add Traffic Node page you now see displayed.

  • Name: Enter a name that you will use to remember this node in the cluster. This name must be unique among all nodes in the cluster.
  • Public Address:
    1. Enter the hostname you set up in DNS for this node (See Prerequisites in the Bomgar Atlas Technology Guide).
    2. Enter the port over which clients will communicate with the node.
  • Internal Address: This can be the same as the public address. Advanced configurations can optionally set this to a different hostname for inter-appliance communication. A link message appears to allow you to use the public address without entering a hostname.
  • Accepting New Client Connections: Be sure this is checked; otherwise, clients will not be able to use the traffic node.
  • Network Address Prefixes: You may leave this blank. See more information in the Bomgar Atlas Technology Guide.
  • Timezone Offset: Used only if Method for Choosing Traffic Nodes is set to Timezone Offset. This process involves detecting the time zone setting of the host machine and using that setting to match the appropriate traffic node that has the closest time zone offset. The time zone offset is derived from the customer time zone setting relative to Coordinated Universal Time (UTC).

Click the Add Traffic Node button to add the traffic node to your cluster.