this post was submitted on 23 Jan 2026
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New to Tailscale. Can I use it along with my own DNS and NPM to access my services externally using my existing internal custom domain? (lemmy.world)
submitted 5 months ago by chazwhiz@lemmy.world to c/selfhosted@lemmy.world
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I’ve not done much with external access in the past, but I’m playing with Tailscale and it’s pretty neat. Wondering if I can configure it to work like my local access does:

  1. I use Nginx Proxy Manager to set easy subdomains for my services, I.e. service.mydomain.com
  2. I use AdGuard Home and have a redirect for *.mydomain to that NPM
  3. This works great internally, which is all I’ve really used it for.
  4. I’ve got tailscale working and I can go externally to server.wackyname.ts.net:serviceport.
  5. what I’d like to do is have tailscale somehow use the same internal dns/npm info so when I’m on my tailnet service.mydomain.com still works.
  6. But no other external access, said subdomains do nothing off tailnet.
  7. Mydomain.com is an actual domain I own. General DNS is at Cloudflare right now (main domain was pointed at a hosted site previously, but that’s not needed anymore)

Any way to pull this off without a ton of complexity?

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[–] oktoberpaard@feddit.nl 2 points 5 months ago

By default Tailscale devices prefer the local DNS server for any hostname that’s not part of your Tailscale network, unless you’ve configured a global DNS server. There’s also the option to configure split DNS and have a different DNS server for certain domains (for example your own domain). You can also add search domains to allow short hostnames to be resolved to FQDNs of your choice.