What's the deal with "dash.ubuntu.com"?
I run PiHole at home on my OrangePi PC (as bundled with DietPi but it's available as a separate download for ARM boxes) and I've noticed an alarming number of outgoing DNS requests going to "dash.ubuntu.com" and "dash.ubuntu.com.local"
I'm not monitoring the network sufficiently to know what (if anything) is going on with all this chatter but could that be causing a something of a battery drain? I'm running 15.04(r11) if that's relevant.
It's past my bedtime now (us auld farts need out sleep) so I won't be able to respond for at least 12 hours or so but if you need any more info, please let me know.
Apparently it's used by the thumbnailer-service to obtain album artwork of your music. That's impossible to do locally. If you want to have the artwork, and you don't download and bundle it locally which nobody does, w/o this service your music will probably not have an album cover. More info: http://manpages.ubuntu.com/manpages/xenial/man1/thumbnailer-service.1.html
I don't have any data (so to speak) on this phone, so it can't be that directly.
In the last 16 hours, it's generated 11,717 requests!
That's LOT of DNS traffic regardless of anything else. That sounds awfully like a bug. I know theses are a couple of packets but if this was using my mobile data that could add up.
Oh, wow, then there's definitely sth going wrong. Thanks for the hint.