this post was submitted on 12 Nov 2023
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self hosted dns to "override" ips on local requests to local ip addresses (alien.top)
submitted 11 months ago by Impressive_Brush_859@alien.top to c/main@selfhosted.forum
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Hi, I am a total newcomer when it comes to DNS.

I know what it is and what it does, and the fundamentals (What is A,AAAA,TXT,MX-Record, etc.)

Now I want to try to setup my own dns on my local network.

What do I want to achieve?

I have a public TLD (example.com). I have a service like "myservice.example.com" which resolves to my routers public IP.

I want clients from my local network to get a different/local IP address (like 192.168.2.5) for myservice.example.com instead of my routers WAN Address, so I can access the local service without sending traffic out over the WAN. (And it also works in case of internet outage)

For every (locally) unknown domain (like google.com), I want that DNS server to upstream to a global one like 8.8.8.8

Any Ideas on where to start?

โ€‹

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[โ€“] edvauler@alien.top 1 points 11 months ago

I use pihole and added a custom config to dnsmasq to resolve some domains to a local IP. This is then known as split DNS. Network devices inside my network using pihole as a dns server and gets the local ip.

my_custom_dnsmaq.conf

address=/myservice.example.com/192.168.2.5