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Update queryStrategy parameter explanation [ENG] #439

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yuhan6665 merged 1 commit into from
Dec 26, 2023
Merged

Update queryStrategy parameter explanation [ENG] #439

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65 changes: 65 additions & 0 deletions docs/en/config/dns.md
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,22 @@ If the domain name to be queried:
"skipFallback": false,
"clientIP": "1.2.3.4"
},
{
"address": "https://1.1.1.1/dns-query",
"domains": [
"geosite:netflix"
],
"skipFallback": true,
"queryStrategy": "UseIPv4"
},
{
"address": "https://1.1.1.1/dns-query",
"domains": [
"geosite:openai"
],
"skipFallback": true,
"queryStrategy": "UseIPv6"
},
"localhost"
],
"clientIp": "1.2.3.4",
Expand Down Expand Up @@ -135,6 +151,55 @@ You can specify `clientIp` for all DNS servers in [DnsObject](#dnsobject), or sp

`UseIPv4` only queries A records; `UseIPv6` only queries AAAA records. The default value is `UseIP`, which queries both A and AAAA records.

Xray-core v1.8.6 New feature: `queryStrategy` can be set separately for each `DNS` server.

```jsonc
"dns": {
"servers": [
"https://1.1.1.1/dns-query",
{
"address": "https://1.1.1.1/dns-query",
"domains": [
"geosite:netflix"
],
"skipFallback": true,
"queryStrategy": "UseIPv4" // geosite:netflix's domain name uses "UseIPv4"
},
{
"address": "https://1.1.1.1/dns-query",
"domains": [
"geosite:openai"
],
"skipFallback": true,
"queryStrategy": "UseIPv6" // The domain name geosite:openai uses "UseIPv6".
}
],
"queryStrategy": "UseIP" // Global use of "UseIP"
}
```

**NOTE：**<br>
When the `"queryStrategy"` value in the child item conflicts with the global `"queryStrategy"` value, the query for the child item will respond null.

```jsonc
"dns": {
"servers": [
"https://1.1.1.1/dns-query",
{
"address": "https://8.8.8.8/dns-query",
"domains": [
"geosite:netflix"
],
"skipFallback": true,
"queryStrategy": "UseIPv6" // "UseIPv6" conflicts with "UseIPv4".
}
],
"queryStrategy": "UseIPv4"
}
```

Subterm geosite:netflix query gets null response due to conflicting `"queryStrategy"` values. geosite:netflix domain is queried by global DNS `https://1.1.1.1/dns-query` and gets A record.

> `disableCache`: true | false

`true` disables DNS caching, default is `false` which means caching is not disabled.
Expand Down