I have a Raspberry Pi board with a wireless usb modem on it. I wish to be able to message 2-way with the board from across the internet, without having to open ports on the wireless modem. Is there a way to do this? I have been looking at udp, but imagine that a udp packet is allowed in, but not out? The amount of data transmission I want is very small, maybe lt 30 bytes. So a client http request could include this data? I have been looking at messaging systems like MQTT as well, but don't know if they require opening a port in the typical modem-router.
Any ideas appreciated! -- https://mail.python.org/mailman/listinfo/python-list
