The UAG admin web interface can be used to configure or reconfigure almost all aspects of the appliance configuration. Refer to the UAG documentation (https://docs.vmware.com/en/Unified-Access-Gateway/index.html) for instructions on how to configure the appliance using the admin web interface.

Additionally, you can submit JSON requests to the appliance REST API interface, which is also available on port 9443 of the appliance ip1 interface. The Unified Access Gateway REST API specifications can be accessed by appending the UAG IP or fully qualified domain name with :9443/rest/swagger.yaml , or https://192.168.76.91:9443/rest/swagger.yaml for the appliance deployed in this chapter.

In this chapter, we used PowerShell, VMware PowerCLI, the VMware UAG deployment scripts, and the VMware OVF tool to configure all of the options needed when deploying the Unified Access Gateway appliance, so there is no need to perform any configuration using the REST API or admin web interface. The same cannot be said if you use just the vSphere Deploy OVF Template feature to deploy a Unified Access Gateway, as you will not be prompted for all of the possible settings, including those that virtually everyone would want, such as using a custom SSL certificate.

So, while you are welcome to use the REST API or admin web interface to make changes, never forget that it may be easier just to use the deployment utility to deploy a new appliance instead.