Hello GL-Inet Community,
I’m on a GL-E750 Mudi with a paid AdGuard DNS subscription and want to point all DNS traffic to my private AdGuard DNS-over-TLS or DNS-over-HTTPS endpoints—without running the resource-heavy AdGuard Home plugin. By default, under Network → DNS → Encrypted DNS, I only see:
- Cloudflare
- NextDNS
…and no place to enter my custom DoT URL (tls://<my-device-id>.d.adguard-dns.com:853). Here’s everything I’ve tried so far:
1. Native Encrypted DNS (DoT & DNSCrypt-Proxy)
- DNS over TLS dropdown only lists Cloudflare/NextDNS.
- DNSCrypt-Proxy dropdown only shows AdGuard’s public endpoints (no “Custom” field).
2. Editing /etc/config/https-dns-proxy
- Added a
config https-dns-proxy 'adguard_private'block withoption name 'AdGuard-Private', my private DoH URL and bootstrap IPs. - Restarted the service, but LuCI still didn’t list my resolver—only showed a generic entry.
3. Installing Alternative LuCI Plugins
- luci-app-https-dns-proxy: Installs OK, but UI only lets me choose predefined resolvers; custom entries don’t stick.
- luci-app-dnsproxy: Not available in official Mudi repos.
4. SmartDNS (Recommended Lightweight Binary)
- Installed via
opkg install smartdns luci-app-smartdns. - Configured DoH upstream to my private AdGuard endpoint on port 6053.
- Faced “NOT RUNNING” status and Permission denied on Save & Apply.
- Fixed file permissions and edited UCI directly, but still no DNS resolution through the router.
5. Stubby (DNS-over-TLS via Service Stubby)
- Enabled DoT in Network → DNS → Encrypted DNS by selecting Cloudflare to spin up Stubby.
- Installed
stubbypackage and edited/etc/stubby/stubby.ymlto point at<my-device-id>.d.adguard-dns.comwith the correctaddress_data. - Set
uci set stubby.@stubby[0].manual='1'to force the custom config. - Updated Network → DHCP and DNS to forward to
127.0.0.1#853. - Stubby runs fine; DNS queries via
dig @127.0.0.1 -p 853 example.comsucceed—but I still can’t inject this into LuCI’s dropdown or guarantee all clients use it automatically.
Summary of Pain Points
- No native “Custom” field for private DoT/DoH in Mudi v4.3.x
- Predefined resolver lists in both HTTPS-DNS-Proxy and DNSCrypt-Proxy UIs
- Alternative plugins either unavailable or unreliable
- SmartDNS lightweight approach blocked by permission/UI issues
- Stubby works under the hood but isn’t exposed cleanly in the UI
What I’m Looking For
- A clean LuCI-based method to enter custom AdGuard DNS-over-TLS URLs.
- Or a minimal-footprint plugin (lighter than AdGuard Home) that supports private DoT endpoints and integrates properly into the Services → DNS menu.
- Any CLI/UCI snippet or hack to extend the current dropdown with my private DoT link.
If you’ve successfully done this on a GL-E750 Mudi, please share your configuration steps or package recommendations. Thanks in advance....
I spent my whole day trying to figure it out together with AI but so far, nothing... Thanks for any further interaction...
