I am running a MicroTik hAP AC Lite (RB952Ui-5ac2nD-TC-US) with the latest recommended AREDN release on a Ubuntu box. While the node functions, the network monitoring folks where I work are telling me that this box is making over 27k DNS requests to Google's DNS server per hour. Originally I thought it was because I had left the browser up in the "Update Node Status" mode, but now I'm not so sure. It was also connected to a short (20 mile) tunnel. We are re-flashing the hAP now, just in case I had a bad firmware install. Is there anything else I should look at or try?
Rich, KY6O
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hAP AC Lite - Excessive DNS Requests
Mon, 08/01/2022 - 12:57
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hAP AC Lite - Excessive DNS Requests
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do you have "Allow others to use my WAN" setting enabled?
If so, perhaps EVERYONE on your mesh is checking google DNS via your connection.
That was a good thought, but sadly, I do not have "Allow others to use my WAN" enabled.
To further confuse the issue, the networking people here said the DNS flood I was creating abruptly ceased at 7 am Saturday morning.
If this continues, I'll reformat the workstation with something other than Ubuntu. Note: I did this. Tumbleweed is much quicker on my aging Dell 9060 workstation.
Update: Two days later, with the mesh running full time, still no reports of issues from my network folks. I did have a pending SNAP update to Firefox yesterday, but that was easily installed.
Final update: Things appear to be stable. If this problem pops up again, I'll re-open this posting.
* Closed 8/4/22 *