How to Configure Standard Proxy Mode on AWS Sophos Outbound Web Proxy

Question

I just finished installing and configuring UTM using the Sophos Outbound Web Proxy AWS quickstart. I am able to login to the testing instance and use the transparent proxy successfully (e.g. blocked sites block, whitelisted sites go through.) However, for my POC I would like to configure a standard proxy instead of the transparent proxy. I can not seem to find any documentation on how to configure this, other than changing the Operation mode on the Web Filtering from "Transparent" to "Standard"... 
 Once changing that setting, the proxy should be available on port 8080, right? What is the endpoint that I point clients to? Should I point them at the OGW1? Should I point them at the UTM Workers? Do I create an ELB listening on 8080 and redirect that somewhere? I am happy to follow a guide or documentation, but I have been searching for hours and can't seem to find one. 
 Any help would be appreciated.

DavidOkeyode · Answer

Hello, 
 It depends on how you will like to use the web proxy. You could use the web proxy in transparent mode (client proxy configuration not needed) or standard mode (client proxy configuration needed). For transparent mode, the main thing needed is to import the UTM's certificate as a trusted certificate on the client and the UTM will perform transparent filtering without the client's knowledge. Here's a quick start guide that covers using the OGW in a transparent mode scenario - https://aws.amazon.com/quickstart/architecture/sophos-outbound-web-proxy/ 
 For the standard mode, it is best to use the IP of the controller when you configure your clients as the controller is more static while the workers are transient (they could cease to exist at anytime depending on the load). In this case, you will need to open the proxy port (default 8080) as you did. The downside is that the controller is a single appliance and you don't have auto-scaling but it all depends on your architecture and what you want in your environment. 
 Thanks.