marnen: (Default)
Marnen Laibow-Koser ([personal profile] marnen) wrote2005-11-09 11:09 am
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Another use of dynamic DNS?

I've been using dynamic DNS in order to be able to connect to my home network easily from elsewhere, as my home network connects to the Internet through a DSL connection with a dynamic IP address, and I want to be able to use the same name to address the network without worrying about the current IP address. This is the usual example of what dynamic DNS is good for, and I'm sure that many of you reading this are doing something similar. But a couple of days ago, a new idea hit me: I'm going to start running a dynamic DNS client (with a different hostname) on my iBook as well. This will mean that wherever I take my iBook, and whatever network I connect to the Internet through, the iBook should still be addressable by the same hostname regardless. I think this is an exciting idea; it may be the first step toward persistent addressing of mobile computers. We'll see how it works out.

[identity profile] ioldanach.livejournal.com 2005-11-09 05:26 pm (UTC)(link)
Yes, that's half of the point of DDNS. Most internet connections are static enough that DDNS is useful, but not essential. A large component is system mobility.

[identity profile] curlyeric.livejournal.com 2005-11-09 06:41 pm (UTC)(link)
The only catch would be the pervasivness of firewalls and proxies ( especially for wirelesss clients ) at this point would make DDNS on a mobile client less effective. So your DDNS would be updated, but people would be unable to reach you still. If there were only a nice simple test that could be done before DDNS update that would check the validity of your new found IP before DDNS register that might help.

[identity profile] marnen.livejournal.com 2005-11-10 05:20 pm (UTC)(link)
Yeah, I had thought of the firewall issue, but I'm not really sure how to get around it effectively. But at least this will be better than nothing. I haven't actually done this yet; we'll see how it works.