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iron: init

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Primrose 2025-10-23 11:37:44 +08:00
parent 3b77ed9058
commit 9aafa0207c
Signed by: primrose
GPG key ID: 4E887A4CA9714ADA
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nix/configurations/iron/nixos/secure_dns.nix Normal file
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# https://nixos.wiki/wiki/Encrypted_DNS
{
lib,
pkgs,
...
}: {
networking = {
nameservers = ["127.0.0.1" "::1"];
dhcpcd.extraConfig = "nohook resolv.conf";
# networkmanager.dns = "none";
};
services.resolved.enable = false;
services.dnscrypt-proxy2 = {
enable = true;
# Settings reference:
# https://github.com/DNSCrypt/dnscrypt-proxy/blob/master/dnscrypt-proxy/example-dnscrypt-proxy.toml
settings = {
listen_addresses = ["127.0.0.1:53"];
ipv4_servers = true;
require_dnssec = true;
require_nolog = true;
require_nofilter = true;
lb_strategy = "p2";
lb_estimator = true;
# Blocklists are made of one pattern per line.
# https://github.com/DNSCrypt/dnscrypt-proxy/blob/fa59f990431a49b6485f63f96601bc7e64017bf8/dnscrypt-proxy/example-dnscrypt-proxy.toml#L583C4-L583C75
blocked_names.blocked_names_file = let
# Prevent building up reliance on chatbots
# Gotta preserve that thinking ability of my smoof bwain
ai_list = let
src = pkgs.fetchFromGitHub {
owner = "laylavish";
repo = "uBlockOrigin-HUGE-AI-Blocklist";
rev = "9bb188e2701138e03f73bacebd6b19b181ca0012";
hash = "sha256-p3wfR28DH6V8BHn9DT10d09Yq3mdbBecWwlR1CdDYUA=";
};
in
lib.pipe (builtins.readFile "${src}/noai_hosts.txt") [
(lib.replaceStrings ["\r\n"] ["\n"]) # convert to unix ending just in case
(lib.splitString "\n")
(builtins.filter (x: ! (x == "" || lib.hasPrefix "#" x)))
(builtins.map (x: builtins.elemAt (lib.splitString " " x) 1)) # remove 0.0.0.0
];
hategroup_list = let
src = pkgs.fetchFromGitHub {
owner = "chigh";
repo = "hategroup-dnsbl";
rev = "cc19c050997d5f54014bb20c764b131e003dfb17";
hash = "sha256-SZBrjIBUw687MdrbOV7WrP5IhAAtKvPL2GqdcICHNvQ=";
};
in
lib.pipe (builtins.readFile "${src}/blocklist.txt") [
(lib.replaceStrings ["\r\n"] ["\n"]) # convert to unix ending just in case
(lib.splitString "\n")
(builtins.filter (x: ! (x == "" || lib.hasPrefix "#" x)))
];
combined_lists = ai_list ++ hategroup_list;
in
pkgs.writeText "dnsblocklist" (builtins.concatStringsSep "\n" combined_lists);
# Add this to test if dnscrypt-proxy is actually used to resolve DNS requests
# query_log.file = "/var/log/dnscrypt-proxy/query.log";
sources.public-resolvers = {
urls = [
"https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/public-resolvers.md"
"https://download.dnscrypt.info/resolvers-list/v3/public-resolvers.md"
];
cache_file = "/var/cache/dnscrypt-proxy/public-resolvers.md";
minisign_key = "RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
};
};
};
}