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DNS resolver for macOS and Windows

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N8SQT
N8SQT's picture
DNS resolver for macOS and Windows
Hi all! Happy New Year (almost)!

I have a MacBook as my daily driver that's connected to a wired network through a dock, and the Mikrotik hAP Wi-Fi for AREDN use. If I have both interfaces active and the wired network is highest in the network order, I can't get to the `local.mesh` nodes. If I switch the order, the mesh nodes can be seen, but *all* internet traffic also goes through the hAP and nothing hits the wired connection.

I went a-Googling and ran across this article that seems to still work for current macOS installations:
https://blog.scottlowe.org/2013/08/14/using-your-home-dns-servers-with-corporate-vpns/

All you need to do is create a folder called `/etc/resolver`, then create a file called `local.mesh` in it with the search name and DNS nameserver IP address for your local node. Here's mine:

# 2022-12-27 - N8SQT - Set up resolver for AREDN mesh (local.mesh)
search local.mesh
nameserver 10.85.253.73

This way, I leave the wired connection at the top of the list to pick up general Internet traffic and Wi-Fi next for AREDN traffic. 

The article also links to another for Windows: http://www.patrickkremer.com/per-zone-dns-resolution-for-homelabs/

The extra bonus is for my WSJT-X / FLRIG / GridTracker / RumLogNG / HamClock (on separate RPi) setup. In order to have the HamClock pick up the WSJT-X call info, I have to use the broadcast address. Before this, I was getting two log entries as RumLog heard both network adapters. Now, it only gets the one on my 172.x.x.x wired network.

Hopefully this is helpful to someone.

Cheers,
Bob N8SQT

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