Adding a node to a cluster

To add a node to a cluster:

1. In the application web interface window, select Nodes.
2. Click Add node.

   The Add node window opens.

3. In the IP address and Port fields, type the IP address and port of the server hosting the application that you want to add as a cluster node.
4. If necessary, type additional information about the added server in the Comment field.
5. In the Scan threads field, specify how many threads of traffic can be simultaneously processed by the ICAP server.

   Valid values are from 4 to 1024. Recommended value: number of processor cores plus one.

6. Click Next.
7. Compare the certificate fingerprints in the Confirm node window and in the certificate file in the nginx service folder (/etc/nginx/kwts/controlapi.crt). If the certificate fingerprints match, click Confirm.

   You can get a certificate fingerprint by running the following command:

   openssl x509 -noout -fingerprint -sha256 -inform pem -in /etc/nginx/kwts/controlapi.crt

The node will be added to the cluster and will be displayed in the nodes table on the Nodes page.

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