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adguard: parallel upstreams + plain UDP fallbacks for speed

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DoH-only sequential upstreams made first-time lookups slow. Add plain
UDP 1.1.1.1/9.9.9.9 alongside DoH and set upstream_mode=parallel so
AdGuard queries all four simultaneously and uses the fastest response.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
ediblerope 2026-04-22 14:04:24 +01:00
parent 919c991e3d
commit 8aeb8e2de7
1 changed files with 5 additions and 1 deletions
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6
services/adguard.nix
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@ -14,10 +14,14 @@
dns = {
bind_hosts = [ "0.0.0.0" ];
port = 53;
# DNS-over-HTTPS upstreams — encrypts queries to resolvers
# Query all upstreams in parallel; take the fastest response
upstream_mode = "parallel";
# Mix of DoH (encrypted) and plain UDP (low-latency) upstreams
upstream_dns = [
"https://dns.cloudflare.com/dns-query"
"https://dns.quad9.net/dns-query"
"1.1.1.1"
"9.9.9.9"
];
bootstrap_dns = [ "1.1.1.1" "9.9.9.9" ];
cache_size = 4194304;