I've recently got a question about the difference between the different methods of connecting to Flash Media Server (or Wowza or Red5 for that matter) and figured this is good material for a written article rather than a video tutorial. For the purpose of this article I may refer only to FMS but the same information can be applied to Wowza and Red5.
What are the different protocols?
For connecting up to a media server of your choice (see above) there are 5 different methods. I'll try to cover them in some detail here.
1. RTMP
2. RTMPT
3. RTMPS and RTMPTS
4. RTMPE
5. RTMFP
See the rest of the article here