On Sat, Jul 21, 2012 at 6:51 PM, AndiDog
<[email protected]> wrote:
> Hi everyone,
>
> I posted this on /r/androiddev earlier, but I think this group may be more
> helpful.
>
> I have an app that does HTTP requests to some web service (hostname:
> andidogs.dyndns.org). Sometimes, when these requests fail I get the error
> "UnknownHostException: andidogs.facebook.com" or similar. Since I created
> this app in four different variants (separately with four different
> cross-platform frameworks for my thesis), and this issue already occurred
> with two of them, I'm quite sure this has something to do with Android's SDK
> or system.
>
> No clue where this is coming from. Do you have any ideas? I don't use
> anything Facebook-related in the app of course.
>
> Some diagnostics:
>
> This happens quite rarely, until now I had this issue with two variants of
> the app (native Android SDK, and Titanium framework, both using the same
> underlying Java methods for networking)
> The request actually goes to xyz.facebook.com which does not exist
> "getprop net.dns1" commands gives me 192.168.15.1, my local router's IP
> (correct)
> AVG Antivirus didn't find anything on my phone (Huawei Ideos X3, I have no
> other Android device for testing)
> Never occurred on emulator
> Don't know how to get DNS cache content
It sounds like carrier proxies (and other tracking games) to me:
"Click Fraud for Fun," http://click-fraud-fun.blogspot.com/.

Use HTTPS, and pin the server's certificate.

Jeff

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