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1330 posts

Uber Geek


#272582 3-Jul-2020 10:44
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I've had a Pi-Hole set up for a few weeks for general network wide ad and tracker blocking. (Good fun, seems to work as advertised).
Noticed a lot of overnight activity from a Chromebook, hundreds of NXDOMAIN queries that look like a random string with my .mydomain i.e. abcdefghi.hinvest
I know just enough networking stuff to be dangerous, can anyone explain what these queries are? I guess the Chromebook was left awake overnight?
16,000+ queries between 0000 and ~0600hrs.

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1330 posts

Uber Geek


  #2516684 3-Jul-2020 11:14
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Ok ta for that. So Chrome is attempting to prefetch domains and just goes through random strings? I guess that makes sense, but is it trying to find domains on my local network? I don’t really get it!


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