php - Instant Server-Client Communication, C#? -

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i have been doing research few months on possibility of client-server communication. have experimented many methods such weborb , fluorinefx, both servers designed deal client/server authentication.

weborb runs on windows .net version far can tell, , rather use open source system. have tried using fluorinefx, think must simpler way me build own simple system ground up.

i have been using dropbox while now, , way client-server communication instant. far can tell (from google searches) client doesn't open port of own, , communicates dropbox server through port 80. example of instant communication may delete file on dropbox on website, , instantly server communicates client telling has happened. don't know how instant communication possible without opening port.

i can create system uses fetching client, asking server every 10 seconds or see if there updates, method able push information server client.

my server runs linux don't think can use wcf, , ideally looking way make php , c# communicate each other.

i love hear advice has , how deal problem. cheers.

have tried old .net remoting runs mono?

you can choose between tcpchannel (for performance) , httpchannel (to pass proxy/firewall easily).

for push notifications, can open connection server , wait answer indefinitely.


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