documentation: Add description for client_subnet options

docs/configuration/dns/index.md

@@ -1,3 +1,11 @@
+---
+icon: material/new-box
+---
+
+!!! quote "Changes in sing-box 1.9.0"
+
+    :material-plus: [client_subnet](#client_subnet)
+
 # DNS
 
 ### Structure
@@ -13,6 +21,7 @@
     "disable_expire": false,
     "independent_cache": false,
     "reverse_mapping": false,
+    "client_subnet": "",
     "fakeip": {}
   }
 }
@@ -60,6 +69,10 @@ Stores a reverse mapping of IP addresses after responding to a DNS query in orde
 Since this process relies on the act of resolving domain names by an application before making a request, it can be
 problematic in environments such as macOS, where DNS is proxied and cached by the system.
 
-#### fakeip
+#### client_subnet
 
-[FakeIP](./fakeip/) settings.
+!!! question "Since sing-box 1.9.0"
+
+Append a `edns0-subnet` OPT extra record with the specified IP address to every query by default.
+
+Can be overrides by `servers.[].client_subnet` or `rules.[].client_subnet`.

docs/configuration/dns/index.zh.md

@@ -1,3 +1,11 @@
+---
+icon: material/new-box
+---
+
+!!! quote "sing-box 1.9.0 中的更改"
+
+    :material-plus: [client_subnet](#client_subnet)
+
 # DNS
 
 ### 结构
@@ -13,6 +21,7 @@
     "disable_expire": false,
     "independent_cache": false,
     "reverse_mapping": false,
+    "client_subnet": "",
     "fakeip": {}
   }
 }
@@ -58,6 +67,14 @@
 
 由于此过程依赖于应用程序在发出请求之前解析域名的行为，因此在 macOS 等 DNS 由系统代理和缓存的环境中可能会出现问题。
 
+#### client_subnet
+
+!!! question "自 sing-box 1.9.0 起"
+
+默认情况下，将带有指定 IP 地址的 `edns0-subnet` OPT 附加记录附加到每个查询。
+ 
+可以被 `servers.[].client_subnet` 或 `rules.[].client_subnet` 覆盖。
+
 #### fakeip
 
 [FakeIP](./fakeip/) 设置。

docs/configuration/dns/rule.md

@@ -7,6 +7,7 @@ icon: material/new-box
     :material-plus: [geoip](#geoip)  
     :material-plus: [ip_cidr](#ip_cidr)  
     :material-plus: [ip_is_private](#ip_is_private)  
+    :material-plus: [client_subnet](#client_subnet)
 
 !!! quote "Changes in sing-box 1.8.0"
 
@@ -121,7 +122,8 @@ icon: material/new-box
         ],
         "server": "local",
         "disable_cache": false,
-        "rewrite_ttl": 100
+        "rewrite_ttl": 100,
+        "client_subnet": "127.0.0.1"
       },
       {
         "type": "logical",
@@ -129,7 +131,8 @@ icon: material/new-box
         "rules": [],
         "server": "local",
         "disable_cache": false,
-        "rewrite_ttl": 100
+        "rewrite_ttl": 100,
+        "client_subnet": "127.0.0.1"
       }
     ]
   }
@@ -280,8 +283,6 @@ Match Clash mode.
 
 #### wifi_ssid
 
-<!-- md:version 1.7.0-beta.4 -->
-
 !!! quote ""
 
     Only supported in graphical clients on Android and iOS.
@@ -326,6 +327,14 @@ Disable cache and save cache in this query.
 
 Rewrite TTL in DNS responses.
 
+#### client_subnet
+
+!!! question "Since sing-box 1.9.0"
+
+Append a `edns0-subnet` OPT extra record with the specified IP address to every query by default.
+
+Will overrides `dns.client_subnet` and `servers.[].client_subnet`.
+
 ### Address Filter Fields
 
 Only takes effect for IP address requests. When the query results do not match the address filtering rule items, the current rule will be skipped.

docs/configuration/dns/rule.zh.md

@@ -7,6 +7,7 @@ icon: material/new-box
     :material-plus: [geoip](#geoip)  
     :material-plus: [ip_cidr](#ip_cidr)  
     :material-plus: [ip_is_private](#ip_is_private)  
+    :material-plus: [client_subnet](#client_subnet)
 
 !!! quote "sing-box 1.8.0 中的更改"
 
@@ -120,14 +121,16 @@ icon: material/new-box
           "direct"
         ],
         "server": "local",
-        "disable_cache": false
+        "disable_cache": false,
+        "client_subnet": "127.0.0.1"
       },
       {
         "type": "logical",
         "mode": "and",
         "rules": [],
         "server": "local",
-        "disable_cache": false
+        "disable_cache": false,
+        "client_subnet": "127.0.0.1"
       }
     ]
   }
@@ -322,6 +325,14 @@ DNS 查询类型。值可以为整数或者类型名称字符串。
 
 重写 DNS 回应中的 TTL。
 
+#### client_subnet
+
+!!! question "自 sing-box 1.9.0 起"
+
+默认情况下，将带有指定 IP 地址的 `edns0-subnet` OPT 附加记录附加到每个查询。
+
+将覆盖 `dns.client_subnet` 与 `servers.[].client_subnet`。
+
 ### 地址筛选字段
 
 仅对IP地址请求生效。 当查询结果与地址筛选规则项不匹配时，将跳过当前规则。

docs/configuration/dns/server.md

@@ -1,3 +1,11 @@
+---
+icon: material/new-box
+---
+
+!!! quote "Changes in sing-box 1.9.0"
+
+    :material-plus: [client_subnet](#client_subnet)
+
 ### Structure
 
 ```json
@@ -5,17 +13,17 @@
   "dns": {
     "servers": [
       {
-        "tag": "google",
+        "tag": "",
-        "address": "tls://dns.google",
+        "address": "",
-        "address_resolver": "local",
+        "address_resolver": "",
-        "address_strategy": "prefer_ipv4",
+        "address_strategy": "",
-        "strategy": "ipv4_only",
+        "strategy": "",
-        "detour": "direct"
+        "detour": "",
+        "client_subnet": ""
       }
     ]
   }
 }
-
 ```
 
 ### Fields
@@ -80,10 +88,20 @@ Default domain strategy for resolving the domain names.
 
 One of `prefer_ipv4` `prefer_ipv6` `ipv4_only` `ipv6_only`.
 
-Take no effect if override by other settings.
+Take no effect if overridden by other settings.
 
 #### detour
 
 Tag of an outbound for connecting to the dns server.
 
 Default outbound will be used if empty.
+
+#### client_subnet
+
+!!! question "Since sing-box 1.9.0"
+
+Append a `edns0-subnet` OPT extra record with the specified IP address to every query by default.
+
+Can be overrides by `rules.[].client_subnet`.
+
+Will overrides `dns.client_subnet`.

docs/configuration/dns/server.zh.md

@@ -1,3 +1,11 @@
+---
+icon: material/new-box
+---
+
+!!! quote "sing-box 1.9.0 中的更改"
+
+    :material-plus: [client_subnet](#client_subnet)
+
 ### 结构
 
 ```json
@@ -5,17 +13,17 @@
   "dns": {
     "servers": [
       {
-        "tag": "google",
+        "tag": "",
-        "address": "tls://dns.google",
+        "address": "",
-        "address_resolver": "local",
+        "address_resolver": "",
-        "address_strategy": "prefer_ipv4",
+        "address_strategy": "",
-        "strategy": "ipv4_only",
+        "strategy": "",
-        "detour": "direct"
+        "detour": "",
+        "client_subnet": ""
       }
     ]
   }
 }
-
 ```
 
 ### 字段
@@ -87,3 +95,13 @@ DNS 服务器的地址。
 用于连接到 DNS 服务器的出站的标签。
 
 如果为空，将使用默认出站。
+
+#### client_subnet
+
+!!! question "自 sing-box 1.9.0 起"
+
+默认情况下，将带有指定 IP 地址的 `edns0-subnet` OPT 附加记录附加到每个查询。
+
+可以被 `rules.[].client_subnet` 覆盖。
+
+将覆盖 `dns.client_subnet`。

docs/manual/proxy/client.md

@@ -338,9 +338,7 @@ flowchart TB
 
 === ":material-dns: DNS rules (1.9.0+)"
 
-    !!! warning "DNS leaks"
+    === ":material-shield-off: With DNS Leaks"
-
-        The new DNS feature allows you to more precisely bypass Chinese websites via **DNS leaks**. Do not use plain local DNS if using this method.
     
         ```json
         {
@@ -407,6 +405,65 @@ flowchart TB
         }
         ```
 
+    === ":material-security: Without DNS Leaks (1.9.0-alpha.2+)"
+
+        ```json
+        {
+          "dns": {
+            "servers": [
+              {
+                "tag": "google",
+                "address": "tls://8.8.8.8"
+              },
+              {
+                "tag": "local",
+                "address": "https://223.5.5.5/dns-query",
+                "detour": "direct"
+              }
+            ],
+            "rules": [
+              {
+                "outbound": "any",
+                "server": "local"
+              },
+              {
+                "clash_mode": "Direct",
+                "server": "local"
+              },
+              {
+                "clash_mode": "Global",
+                "server": "google"
+              },
+              {
+                "rule_set": "geosite-geolocation-cn",
+                "server": "local"
+              },
+              {
+                "rule_set": "geoip-cn",
+                "server": "google",
+                "client_subnet": "114.114.114.114" // Any China client IP address
+              }
+            ]
+          },
+          "route": {
+            "rule_set": [
+              {
+                "type": "remote",
+                "tag": "geosite-geolocation-cn",
+                "format": "binary",
+                "url": "https://raw.githubusercontent.com/SagerNet/sing-geosite/rule-set/geosite-geolocation-cn.srs"
+              },
+              {
+                "type": "remote",
+                "tag": "geoip-cn",
+                "format": "binary",
+                "url": "https://raw.githubusercontent.com/SagerNet/sing-geoip/rule-set/geoip-cn.srs"
+              }
+            ]
+          }
+        }
+        ```
+
 === ":material-router-network: Route rules"
 
     ```json