2024-11-06 11:02:55 +00:00
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icon: material/new-box
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---
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# DNS 规则动作
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!!! question "自 sing-box 1.11.0 起"
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### route
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```json
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{
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"action": "route", // 默认
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"server": "",
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// 兼容性
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"disable_cache": false,
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"rewrite_ttl": 0,
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"client_subnet": null
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}
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```
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`route` 继承了将 DNS 请求 路由到指定服务器的经典规则动作。
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#### server
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==必填==
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目标 DNS 服务器的标签。
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#### disable_cache
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在此查询中禁用缓存。
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#### rewrite_ttl
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重写 DNS 回应中的 TTL。
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#### client_subnet
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默认情况下，将带有指定 IP 前缀的 `edns0-subnet` OPT 附加记录附加到每个查询。
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如果值是 IP 地址而不是前缀，则会自动附加 `/32` 或 `/128`。
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将覆盖 `dns.client_subnet` 与 `servers.[].client_subnet`。
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2024-11-11 09:24:15 +00:00
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### route-options
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```json
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{
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"action": "route-options",
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"disable_cache": false,
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"rewrite_ttl": null,
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"client_subnet": null
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}
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```
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`route-options` 为路由设置选项。
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2024-11-06 11:02:55 +00:00
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### reject
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```json
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{
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"action": "reject",
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"method": "default", // default
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"no_drop": false
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}
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```
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`reject` 拒绝 DNS 请求。
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#### method
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- `default`: 返回 NXDOMAIN。
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- `drop`: 丢弃请求。
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#### no_drop
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如果未启用，则 30 秒内触发 50 次后，`method` 将被暂时覆盖为 `drop`。
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当 `method` 设为 `drop` 时不可用。
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