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Old 11-12-2011, 01:05 PM   #1
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Access home automation from outside of local network?

I'm in need of some project guidance with my home automation project -- details below.

I will use a arduino microcontroller(s) as my I/O. The arduino will act as a dumb I/O device controlled by serial commands from my dedicated PC running Ubuntu 10.4, serial commands will be sent via a Java application. A Java Applet will act as my GUI(front end).

Now my question.. I would like to connect to the machine outside of my local network. I have read about, would this be a good way to access the machine from outside? Would it be beneficial to load a different distro on the machine, such as Ubuntu server? Also i would like to trend and archive data would using a server make this easier?

As you can tell, I'm new to the networking / programming world.
So any advice or guidance is much appreciated.

Last edited by P_Titty; 11-12-2011 at 01:07 PM.
Old 11-12-2011, 01:29 PM   #2
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Assuming your IP address on the Internet is dynamic, a dynamic DNS provider such as will be essential. There's a list of them on Wikipedia.

How do you connect to the Internet? If there is a NATting router involved you will need port-forwarding to send incoming requests arriving at your internet connection to your Java GUI (if it were an HTTP server you would forward port 80).

Regards switching to a server version of the distro, there's not much point -- you could simply install whatever packages are required on your current Ubuntu version, including whatever you choose for the trend and archive data.


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