SSL, WCA wants to use SSL and has some confusing switches, they make sense eventually so to summerise: You have 3 options to install WCA with SP2013:
- Not using SSL (not recommened),
- SSL Certificates on the WCA servers
- SSLOffloading (Hardware device such as an F5 or KEMP does the SSL decryption, this saves you distributing certs to the WCA servers but means that the traffic between the NLB and the servers is not encrypted.)
Basically I have 2 WCA servers that make up my Office web App farm. I want to connect SharePoint 2013 to display/edit document via the web browser and I want the preview cabability that SharePoint search needs. This post explains the situation "Not Using SSL".
In my initial attemp at installing the WCA farm I selected the switch -SSLOffLoading, this makes the WCA farm accept http requests. My issue was that other resources then made http requests that with a load balancer performing SSL termination in place is correct. And here was the problem, when i open a word document it just waits. I opened my IE developer toolbar and noticed the https request. Below is how I rolled out of the issue to allow me to use http throughout (Don't do this in production).