Re: Re: How to make your feed cloud-aware

randymorin wrote:
> Can you elaborate on how you enabled NAT traversal?

I'm using UPnP (Universal Plug and Play) - more specifically, the Internet 
Gateway Device protocol. On Windows, it's just a couple of lines of code. 
You can learn the external IP address (including notification of when that 
address changes) and add and remove port mappings on the router as you need 
them.

> Firewalls are not only a technical problem, they are also an
> adoption problem. Most all large corporations have chosen not
> to open inbound ports thru firewalls.

The way I see it, the corporation has two choices. Either they don't want 
their employees mucking about on twitter (and twitter-like protocols) all 
day, in which case it's perfectly reasonable for them to block such 
connections. Or, they consider real-time RSS feeds important to their 
business in which case they'll find a way to make them work.

Now, assuming they want to make them work, I can see two options. Option one 
would be to allow client applications to open ports in their firewalls as 
necessary (using UPnP). I suspect their are security reasons which preclude 
large corps from doing this, but I don't think it's unimaginable for smaller 
companies.

Option two would be to invest in some kind of enterprise RSS gateway product 
that handles the caching and forwarding of cloud notifications automatically 
(not to mention caching of regular RSS content). Such a product may not yet 
exist, but if this real-time feed thing really starts to take off, it could 
be a great business opportunity.

Also, bare in mind that PSHB/PuSH has all the same problems as RSS cloud in 
this regard, so they'll be looking for similar solutions.

Regards
James



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