Simplify DNS Settings (#7572)

* Simplify DNS Settings * fix * ExpectedIPs * Optimize ExpectedIPs Logic * Fixes geoip overrides rule_set when geosite is also set * rename DNSItem to SimpleDNSItem * Compatible * Fixes Combobox for desktop * Regional Preset * Fix * Refactor DNS tags handling * Uses correct DNS strategy for direct connections * auto-disable DNS items with empty NormalDNS on startup
2026-11-11 06:54:58 +03:00 · 2025-08-10 11:57:42 +08:00
parent 7995bdd4df
commit d41a73b44b
22 changed files with 2371 additions and 367 deletions
@@ -1,7 +1,9 @@
+using System.Collections.Generic;
 using System.Data;
 using System.Net;
 using System.Net.NetworkInformation;
 using System.Reactive;
+using System.Text;
 using DynamicData;
 using ServiceLib.Models;

@@ -73,7 +75,7 @@ public class CoreConfigSingboxService

            await GenRouting(singboxConfig);

-            await GenDns(node, singboxConfig);
+            await GenDns(singboxConfig);

            await GenExperimental(singboxConfig);

@@ -243,20 +245,20 @@ public class CoreConfigSingboxService
                singboxConfig.route.rules.Add(rule);
            }

-            await GenDnsDomains(null, singboxConfig, null);
-            //var dnsServer = singboxConfig.dns?.servers.FirstOrDefault();
-            //if (dnsServer != null)
-            //{
-            //    dnsServer.detour = singboxConfig.route.rules.LastOrDefault()?.outbound;
-            //}
-            //var dnsRule = singboxConfig.dns?.rules.Where(t => t.outbound != null).FirstOrDefault();
-            //if (dnsRule != null)
-            //{
-            //    singboxConfig.dns.rules = [];
-            //    singboxConfig.dns.rules.Add(dnsRule);
-            //}
+            var rawDNSItem = await AppHandler.Instance.GetDNSItem(ECoreType.sing_box);
+            if (rawDNSItem != null && rawDNSItem.Enabled == true)
+            {
+                await GenDnsDomainsCompatible(singboxConfig, rawDNSItem);
+            }
+            else
+            {
+                await GenDnsDomains(singboxConfig, _config.SimpleDNSItem);
+            }
+            singboxConfig.route.default_domain_resolver = new()
+            {
+                server = Global.SingboxFinalResolverTag
+            };

-            //ret.Msg =string.Format(ResUI.SuccessfulConfiguration"), node.getSummary());
            ret.Success = true;
            ret.Data = JsonUtils.Serialize(singboxConfig);
            return ret;
@@ -315,7 +317,19 @@ public class CoreConfigSingboxService
                await GenOutbound(node, singboxConfig.outbounds.First());
            }
            await GenMoreOutbounds(node, singboxConfig);
-            await GenDnsDomains(null, singboxConfig, null);
+            var item = await AppHandler.Instance.GetDNSItem(ECoreType.sing_box);
+            if (item != null && item.Enabled == true)
+            {
+                await GenDnsDomainsCompatible(singboxConfig, item);
+            }
+            else
+            {
+                await GenDnsDomains(singboxConfig, _config.SimpleDNSItem);
+            }
+            singboxConfig.route.default_domain_resolver = new()
+            {
+                server = Global.SingboxFinalResolverTag
+            };

            singboxConfig.route.rules.Clear();
            singboxConfig.inbounds.Clear();
@@ -417,7 +431,7 @@ public class CoreConfigSingboxService
            }
            await GenOutboundsList(proxyProfiles, singboxConfig);

-            await GenDns(null, singboxConfig);
+            await GenDns(singboxConfig);
            await ConvertGeo2Ruleset(singboxConfig);

            ret.Success = true;
@@ -648,17 +662,6 @@ public class CoreConfigSingboxService
            outbound.server_port = node.Port;
            outbound.type = Global.ProtocolTypes[node.ConfigType];

-            if (Utils.IsDomain(node.Address))
-            {
-                var item = await AppHandler.Instance.GetDNSItem(ECoreType.sing_box);
-                var localDnsAddress = string.IsNullOrEmpty(item?.DomainDNSAddress) ? Global.SingboxDomainDNSAddress.FirstOrDefault() : item?.DomainDNSAddress;
-                outbound.domain_resolver = new()
-                {
-                    server = localDnsAddress.StartsWith("tag://") ? localDnsAddress.Substring(6) : "local_resolver",
-                    strategy = string.IsNullOrEmpty(item?.DomainStrategy4Freedom) ? null : item?.DomainStrategy4Freedom
-                };
-            }
-
            switch (node.ConfigType)
            {
                case EConfigType.VMess:
@@ -793,17 +796,6 @@ public class CoreConfigSingboxService
            endpoint.address = Utils.String2List(node.RequestHost);
            endpoint.type = Global.ProtocolTypes[node.ConfigType];

-            if (Utils.IsDomain(node.Address))
-            {
-                var item = await AppHandler.Instance.GetDNSItem(ECoreType.sing_box);
-                var localDnsAddress = string.IsNullOrEmpty(item?.DomainDNSAddress) ? Global.SingboxDomainDNSAddress.FirstOrDefault() : item?.DomainDNSAddress;
-                endpoint.domain_resolver = new()
-                {
-                    server = localDnsAddress.StartsWith("tag://") ? localDnsAddress.Substring(6) : "local_resolver",
-                    strategy = string.IsNullOrEmpty(item?.DomainStrategy4Freedom) ? null : item?.DomainStrategy4Freedom
-                };
-            }
-
            switch (node.ConfigType)
            {
                case EConfigType.WireGuard:
@@ -1250,6 +1242,22 @@ public class CoreConfigSingboxService
        try
        {
            singboxConfig.route.final = Global.ProxyTag;
+            var item = _config.SimpleDNSItem;
+
+            var defaultDomainResolverTag = Global.SingboxOutboundResolverTag;
+            var directDNSStrategy = item.SingboxStrategy4Direct.IsNullOrEmpty() ? Global.SingboxDomainStrategy4Out.FirstOrDefault() : item.SingboxStrategy4Direct;
+
+            var rawDNSItem = await AppHandler.Instance.GetDNSItem(ECoreType.sing_box);
+            if (rawDNSItem != null && rawDNSItem.Enabled == true)
+            {
+                defaultDomainResolverTag = Global.SingboxFinalResolverTag;
+                directDNSStrategy = rawDNSItem.DomainStrategy4Freedom.IsNullOrEmpty() ? Global.SingboxDomainStrategy4Out.FirstOrDefault() : rawDNSItem.DomainStrategy4Freedom;
+            }
+            singboxConfig.route.default_domain_resolver = new()
+            {
+                server = defaultDomainResolverTag,
+                strategy = directDNSStrategy
+            };

            if (_config.TunModeItem.EnableTun)
            {
@@ -1330,14 +1338,14 @@ public class CoreConfigSingboxService
            if (routing != null)
            {
                var rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet);
-                foreach (var item in rules ?? [])
+                foreach (var item1 in rules ?? [])
                {
-                    if (item.Enabled)
+                    if (item1.Enabled)
                    {
-                        await GenRoutingUserRule(item, singboxConfig);
-                        if (item.Ip != null && item.Ip.Count > 0)
+                        await GenRoutingUserRule(item1, singboxConfig);
+                        if (item1.Ip != null && item1.Ip.Count > 0)
                        {
-                            ipRules.Add(item);
+                            ipRules.Add(item1);
                        }
                    }
                }
@@ -1345,9 +1353,9 @@ public class CoreConfigSingboxService
            if (_config.RoutingBasicItem.DomainStrategy == "IPIfNonMatch")
            {
                singboxConfig.route.rules.Add(resolveRule);
-                foreach (var item in ipRules)
+                foreach (var item2 in ipRules)
                {
-                    await GenRoutingUserRule(item, singboxConfig);
+                    await GenRoutingUserRule(item2, singboxConfig);
                }
            }
        }
@@ -1590,7 +1598,278 @@ public class CoreConfigSingboxService
        return server.tag;
    }

-    private async Task<int> GenDns(ProfileItem? node, SingboxConfig singboxConfig)
+    private async Task<int> GenDns(SingboxConfig singboxConfig)
+    {
+        try
+        {
+            var item = await AppHandler.Instance.GetDNSItem(ECoreType.sing_box);
+            if (item != null && item.Enabled == true)
+            {
+                return await GenDnsCompatible(singboxConfig);
+            }
+
+            var simpleDNSItem = _config.SimpleDNSItem;
+            await GenDnsServers(singboxConfig, simpleDNSItem);
+            await GenDnsRules(singboxConfig, simpleDNSItem);
+
+            singboxConfig.dns ??= new Dns4Sbox();
+            singboxConfig.dns.independent_cache = true;
+
+            var routing = await ConfigHandler.GetDefaultRouting(_config);
+            var useDirectDns = false;
+            if (routing != null)
+            {
+                var rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet) ?? [];
+
+                useDirectDns = rules?.LastOrDefault() is { } lastRule &&
+                                  lastRule.OutboundTag == Global.DirectTag &&
+                                  (lastRule.Port == "0-65535" ||
+                                   lastRule.Network == "tcp,udp" ||
+                                   lastRule.Ip?.Contains("0.0.0.0/0") == true);
+            }
+            singboxConfig.dns.final = useDirectDns ? Global.SingboxDirectDNSTag : Global.SingboxRemoteDNSTag;
+        }
+        catch (Exception ex)
+        {
+            Logging.SaveLog(_tag, ex);
+        }
+        return 0;
+    }
+
+    private async Task<int> GenDnsServers(SingboxConfig singboxConfig, SimpleDNSItem simpleDNSItem)
+    {
+        var finalDns = await GenDnsDomains(singboxConfig, simpleDNSItem);
+
+        var directDns = ParseDnsAddress(simpleDNSItem.DirectDNS);
+        directDns.tag = Global.SingboxDirectDNSTag;
+        directDns.domain_resolver = Global.SingboxFinalResolverTag;
+
+        var remoteDns = ParseDnsAddress(simpleDNSItem.RemoteDNS);
+        remoteDns.tag = Global.SingboxRemoteDNSTag;
+        remoteDns.detour = Global.ProxyTag;
+        remoteDns.domain_resolver = Global.SingboxFinalResolverTag;
+
+        var resolverDns = ParseDnsAddress(simpleDNSItem.SingboxOutboundsResolveDNS);
+        resolverDns.tag = Global.SingboxOutboundResolverTag;
+        resolverDns.domain_resolver = Global.SingboxFinalResolverTag;
+
+        var hostsDns = new Server4Sbox
+        {
+            tag = Global.SingboxHostsDNSTag,
+            type = "hosts",
+        };
+        if (simpleDNSItem.AddCommonHosts == true)
+        {
+            hostsDns.predefined = Global.PredefinedHosts;
+        }
+        var userHostsMap = simpleDNSItem.Hosts?
+            .Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries)
+            .Where(line => !string.IsNullOrWhiteSpace(line))
+            .Where(line => line.Contains(' '))
+            .ToDictionary(
+                line =>
+                {
+                    var parts = line.Trim().Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
+                    return parts[0];
+                },
+                line =>
+                {
+                    var parts = line.Trim().Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
+                    var values = parts.Skip(1).ToList();
+                    return values;
+                }
+            );
+
+        if (userHostsMap != null)
+        {
+            foreach (var kvp in userHostsMap)
+            {
+                hostsDns.predefined[kvp.Key] = kvp.Value;
+            }
+        }
+
+        foreach (var host in hostsDns.predefined)
+        {
+            if (finalDns.server == host.Key)
+            {
+                finalDns.domain_resolver = Global.SingboxHostsDNSTag;
+            }
+            if (remoteDns.server == host.Key)
+            {
+                remoteDns.domain_resolver = Global.SingboxHostsDNSTag;
+            }
+            if (resolverDns.server == host.Key)
+            {
+                resolverDns.domain_resolver = Global.SingboxHostsDNSTag;
+            }
+            if (directDns.server == host.Key)
+            {
+                directDns.domain_resolver = Global.SingboxHostsDNSTag;
+            }
+        }
+
+        singboxConfig.dns ??= new Dns4Sbox();
+        singboxConfig.dns.servers ??= new List<Server4Sbox>();
+        singboxConfig.dns.servers.Add(remoteDns);
+        singboxConfig.dns.servers.Add(directDns);
+        singboxConfig.dns.servers.Add(resolverDns);
+        singboxConfig.dns.servers.Add(hostsDns);
+
+        // fake ip
+        if (simpleDNSItem.FakeIP == true)
+        {
+            var fakeip = new Server4Sbox
+            {
+                tag = Global.SingboxFakeDNSTag,
+                type = "fakeip",
+                inet4_range = "198.18.0.0/15",
+                inet6_range = "fc00::/18",
+            };
+            singboxConfig.dns.servers.Add(fakeip);
+        }
+
+        return await Task.FromResult(0);
+    }
+
+    private async Task<Server4Sbox> GenDnsDomains(SingboxConfig singboxConfig, SimpleDNSItem? simpleDNSItem)
+    {
+        var finalDns = ParseDnsAddress(simpleDNSItem.SingboxFinalResolveDNS);
+        finalDns.tag = Global.SingboxFinalResolverTag;
+        singboxConfig.dns ??= new Dns4Sbox();
+        singboxConfig.dns.servers ??= new List<Server4Sbox>();
+        singboxConfig.dns.servers.Add(finalDns);
+        return await Task.FromResult(finalDns);
+    }
+
+    private async Task<int> GenDnsRules(SingboxConfig singboxConfig, SimpleDNSItem simpleDNSItem)
+    {
+        singboxConfig.dns ??= new Dns4Sbox();
+        singboxConfig.dns.rules ??= new List<Rule4Sbox>();
+
+        singboxConfig.dns.rules.AddRange(new[]
+            {
+            new Rule4Sbox { ip_accept_any = true, server = Global.SingboxHostsDNSTag },
+            new Rule4Sbox
+            {
+                server = Global.SingboxRemoteDNSTag,
+                strategy = simpleDNSItem.SingboxStrategy4Proxy.IsNullOrEmpty() ? null : simpleDNSItem.SingboxStrategy4Proxy,
+                clash_mode = ERuleMode.Global.ToString()
+            },
+            new Rule4Sbox
+            {
+                server = Global.SingboxDirectDNSTag,
+                strategy = simpleDNSItem.SingboxStrategy4Direct.IsNullOrEmpty() ? null : simpleDNSItem.SingboxStrategy4Direct,
+                clash_mode = ERuleMode.Direct.ToString()
+            }
+        });
+
+        if (simpleDNSItem.BlockBindingQuery == true)
+        {
+            singboxConfig.dns.rules.Add(new()
+            {
+                query_type = new List<int> { 64, 65 },
+                action = "predefined",
+                rcode = "NOTIMP"
+            });
+        }
+
+        var routing = await ConfigHandler.GetDefaultRouting(_config);
+        if (routing == null)
+            return 0;
+
+        var rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet) ?? [];
+        var expectedIPCidr = new List<string>();
+        var expectedIPsRegions = new List<string>();
+        var regionNames = new HashSet<string>();
+
+        if (!string.IsNullOrEmpty(simpleDNSItem?.DirectExpectedIPs))
+        {
+            var ipItems = simpleDNSItem.DirectExpectedIPs
+                .Split(new[] { ',', ';' }, StringSplitOptions.RemoveEmptyEntries)
+                .Select(s => s.Trim())
+                .Where(s => !string.IsNullOrEmpty(s))
+                .ToList();
+
+            foreach (var ip in ipItems)
+            {
+                if (ip.StartsWith("geoip:", StringComparison.OrdinalIgnoreCase))
+                {
+                    var region = ip["geoip:".Length..];
+                    if (!string.IsNullOrEmpty(region))
+                    {
+                        expectedIPsRegions.Add(region);
+                        regionNames.Add(region);
+                        regionNames.Add($"geolocation-{region}");
+                        regionNames.Add($"tld-{region}");
+                    }
+                }
+                else
+                {
+                    expectedIPCidr.Add(ip);
+                }
+            }
+        }
+
+        foreach (var item in rules)
+        {
+            if (!item.Enabled || item.Domain is null || item.Domain.Count == 0)
+            {
+                continue;
+            }
+
+            var rule = new Rule4Sbox();
+            var validDomains = item.Domain.Count(it => ParseV2Domain(it, rule));
+            if (validDomains <= 0)
+            {
+                continue;
+            }
+
+            if (item.OutboundTag == Global.DirectTag)
+            {
+                rule.server = Global.SingboxDirectDNSTag;
+                rule.strategy = string.IsNullOrEmpty(simpleDNSItem.SingboxStrategy4Direct) ? null : simpleDNSItem.SingboxStrategy4Direct;
+
+                if (expectedIPsRegions.Count > 0 && rule.geosite?.Count > 0)
+                {
+                    var geositeSet = new HashSet<string>(rule.geosite);
+                    if (regionNames.Intersect(geositeSet).Any())
+                    {
+                        if (expectedIPsRegions.Count > 0)
+                        {
+                            rule.geoip = expectedIPsRegions;
+                        }
+                        if (expectedIPCidr.Count > 0)
+                        {
+                            rule.ip_cidr = expectedIPCidr;
+                        }
+                    }
+                }
+            }
+            else if (item.OutboundTag == Global.ProxyTag)
+            {
+                if (simpleDNSItem.FakeIP == true)
+                {
+                    var rule4Fake = JsonUtils.DeepCopy(rule);
+                    rule4Fake.server = Global.SingboxFakeDNSTag;
+                    singboxConfig.dns.rules.Add(rule4Fake);
+                }
+                rule.server = Global.SingboxRemoteDNSTag;
+                rule.strategy = string.IsNullOrEmpty(simpleDNSItem.SingboxStrategy4Proxy) ? null : simpleDNSItem.SingboxStrategy4Proxy;
+            }
+            else if (item.OutboundTag == Global.BlockTag)
+            {
+                rule.action = "predefined";
+                rule.rcode = "NOERROR";
+                rule.answer = new List<string> { "A" };
+            }
+
+            singboxConfig.dns.rules.Add(rule);
+        }
+
+        return 0;
+    }
+
+    private async Task<int> GenDnsCompatible(SingboxConfig singboxConfig)
    {
        try
        {
@@ -1614,11 +1893,11 @@ public class CoreConfigSingboxService

            if (dns4Sbox.servers != null && dns4Sbox.servers.Count > 0 && dns4Sbox.servers.First().address.IsNullOrEmpty())
            {
-                await GenDnsDomains(node, singboxConfig, item);
+                await GenDnsDomainsCompatible(singboxConfig, item);
            }
            else
            {
-                await GenDnsDomainsLegacy(node, singboxConfig, item);
+                await GenDnsDomainsLegacyCompatible(singboxConfig, item);
            }
        }
        catch (Exception ex)
@@ -1628,86 +1907,35 @@ public class CoreConfigSingboxService
        return 0;
    }

-    private async Task<int> GenDnsDomains(ProfileItem? node, SingboxConfig singboxConfig, DNSItem? dNSItem)
+    private async Task<int> GenDnsDomainsCompatible(SingboxConfig singboxConfig, DNSItem? dNSItem)
    {
        var dns4Sbox = singboxConfig.dns ?? new();
        dns4Sbox.servers ??= [];
        dns4Sbox.rules ??= [];

-        var tag = "local_resolver";
-        var localDnsAddress = string.IsNullOrEmpty(dNSItem?.DomainDNSAddress) ? Global.SingboxDomainDNSAddress.FirstOrDefault() : dNSItem?.DomainDNSAddress;
+        var tag = Global.SingboxFinalResolverTag;
+        var localDnsAddress = string.IsNullOrEmpty(dNSItem?.DomainDNSAddress) ? Global.DomainPureIPDNSAddress.FirstOrDefault() : dNSItem?.DomainDNSAddress;

-        if (localDnsAddress.StartsWith("tag://"))
-        {
-            tag = localDnsAddress.Substring(6);
+        var localDnsServer = ParseDnsAddress(localDnsAddress);
+        localDnsServer.tag = tag;

-            var localDnsTag = "local_local";
-
-            dns4Sbox.servers.Add(new()
-            {
-                tag = localDnsTag,
-                type = "local"
-            });
-
-            dns4Sbox.rules.Insert(0, new()
-            {
-                server = localDnsTag,
-                clash_mode = ERuleMode.Direct.ToString()
-            });
-        }
-        else
-        {
-            var (dnsType, dnsHost, dnsPort, dnsPath) = ParseDnsAddress(localDnsAddress);
-
-            dns4Sbox.servers.Add(new()
-            {
-                tag = tag,
-                type = dnsType,
-                server = dnsHost,
-                Interface = dnsType == "dhcp" ? dnsHost : null,
-                server_port = dnsPort,
-                path = dnsPath
-            });
-
-            dns4Sbox.rules.Insert(0, new()
-            {
-                server = tag,
-                clash_mode = ERuleMode.Direct.ToString()
-            });
-        }
-
-        dns4Sbox.rules.Insert(0, new()
-        {
-            server = dns4Sbox.servers.Where(t => t.detour == Global.ProxyTag).Select(t => t.tag).FirstOrDefault() ?? "remote",
-            clash_mode = ERuleMode.Global.ToString()
-        });
-
-        //Tun2SocksAddress
-        if (_config.TunModeItem.EnableTun && node?.ConfigType == EConfigType.SOCKS && Utils.IsDomain(node?.Sni))
-        {
-            dns4Sbox.rules.Insert(0, new()
-            {
-                server = tag,
-                domain = [node?.Sni],
-                strategy = string.IsNullOrEmpty(dNSItem?.DomainStrategy4Freedom) ? null : dNSItem?.DomainStrategy4Freedom
-            });
-        }
+        dns4Sbox.servers.Add(localDnsServer);

        singboxConfig.dns = dns4Sbox;
        return await Task.FromResult(0);
    }

-    private async Task<int> GenDnsDomainsLegacy(ProfileItem? node, SingboxConfig singboxConfig, DNSItem? dNSItem)
+    private async Task<int> GenDnsDomainsLegacyCompatible(SingboxConfig singboxConfig, DNSItem? dNSItem)
    {
        var dns4Sbox = singboxConfig.dns ?? new();
        dns4Sbox.servers ??= [];
        dns4Sbox.rules ??= [];

-        var tag = "local_local";
+        var tag = Global.SingboxFinalResolverTag;
        dns4Sbox.servers.Add(new()
        {
            tag = tag,
-            address = string.IsNullOrEmpty(dNSItem?.DomainDNSAddress) ? Global.SingboxDomainDNSAddress.FirstOrDefault() : dNSItem?.DomainDNSAddress,
+            address = string.IsNullOrEmpty(dNSItem?.DomainDNSAddress) ? Global.DomainPureIPDNSAddress.FirstOrDefault() : dNSItem?.DomainDNSAddress,
            detour = Global.DirectTag,
            strategy = string.IsNullOrEmpty(dNSItem?.DomainStrategy4Freedom) ? null : dNSItem?.DomainStrategy4Freedom,
        });
@@ -1736,103 +1964,100 @@ public class CoreConfigSingboxService
            });
        }

-        //Tun2SocksAddress
-        if (_config.TunModeItem.EnableTun && node?.ConfigType == EConfigType.SOCKS && Utils.IsDomain(node?.Sni))
-        {
-            dns4Sbox.rules.Insert(0, new()
-            {
-                server = tag,
-                domain = [node?.Sni]
-            });
-        }
-
        singboxConfig.dns = dns4Sbox;
        return await Task.FromResult(0);
    }

-    private (string type, string? host, int? port, string? path) ParseDnsAddress(string address)
+    private static Server4Sbox? ParseDnsAddress(string address)
    {
-        string type = "udp";
-        string? host = null;
-        int? port = null;
-        string? path = null;
-
-        if (address is "local" or "localhost")
+        var addressFirst = address?.Split(address.Contains(',') ? ',' : ';').FirstOrDefault()?.Trim();
+        if (string.IsNullOrEmpty(addressFirst))
        {
-            return ("local", null, null, null);
+            return null;
        }

-        if (address.StartsWith("dhcp://", StringComparison.OrdinalIgnoreCase))
+        var server = new Server4Sbox();
+
+        if (addressFirst is "local" or "localhost")
        {
-            string interface_name = address.Substring(7);
-            return ("dhcp", interface_name == "auto" ? null : interface_name, null, null);
+            server.type = "local";
+            return server;
        }

-        if (!address.Contains("://"))
+        if (addressFirst.StartsWith("dhcp://", StringComparison.OrdinalIgnoreCase))
+        {
+            var interface_name = addressFirst.Substring(7);
+            server.type = "dhcp";
+            server.Interface = interface_name == "auto" ? null : interface_name;
+            return server;
+        }
+
+        if (!addressFirst.Contains("://"))
        {
            // udp dns
-            host = address;
-            return (type, host, port, path);
+            server.type = "udp";
+            server.server = addressFirst;
+            return server;
        }

        try
        {
-            int protocolEndIndex = address.IndexOf("://", StringComparison.Ordinal);
-            type = address.Substring(0, protocolEndIndex).ToLower();
+            var protocolEndIndex = addressFirst.IndexOf("://", StringComparison.Ordinal);
+            server.type = addressFirst.Substring(0, protocolEndIndex).ToLower();

-            var uri = new Uri(address);
-            host = uri.Host;
+            var uri = new Uri(addressFirst);
+            server.server = uri.Host;

            if (!uri.IsDefaultPort)
            {
-                port = uri.Port;
+                server.server_port = uri.Port;
            }

-            if ((type == "https" || type == "h3") && !string.IsNullOrEmpty(uri.AbsolutePath) && uri.AbsolutePath != "/")
+            if ((server.type == "https" || server.type == "h3") && !string.IsNullOrEmpty(uri.AbsolutePath) && uri.AbsolutePath != "/")
            {
-                path = uri.AbsolutePath;
+                server.path = uri.AbsolutePath;
            }
        }
        catch (UriFormatException)
        {
-            int protocolEndIndex = address.IndexOf("://", StringComparison.Ordinal);
+            var protocolEndIndex = addressFirst.IndexOf("://", StringComparison.Ordinal);
            if (protocolEndIndex > 0)
            {
-                type = address.Substring(0, protocolEndIndex).ToLower();
-                string remaining = address.Substring(protocolEndIndex + 3);
+                server.type = addressFirst.Substring(0, protocolEndIndex).ToLower();
+                var remaining = addressFirst.Substring(protocolEndIndex + 3);

-                int portIndex = remaining.IndexOf(':');
-                int pathIndex = remaining.IndexOf('/');
+                var portIndex = remaining.IndexOf(':');
+                var pathIndex = remaining.IndexOf('/');

                if (portIndex > 0)
                {
-                    host = remaining.Substring(0, portIndex);
-                    string portPart = pathIndex > portIndex
+                    server.server = remaining.Substring(0, portIndex);
+                    var portPart = pathIndex > portIndex
                        ? remaining.Substring(portIndex + 1, pathIndex - portIndex - 1)
                        : remaining.Substring(portIndex + 1);

-                    if (int.TryParse(portPart, out int parsedPort))
+                    if (int.TryParse(portPart, out var parsedPort))
                    {
-                        port = parsedPort;
+                        server.server_port = parsedPort;
                    }
                }
                else if (pathIndex > 0)
                {
-                    host = remaining.Substring(0, pathIndex);
+                    server.server = remaining.Substring(0, pathIndex);
                }
                else
                {
-                    host = remaining;
+                    server.server = remaining;
                }

-                if (pathIndex > 0 && (type == "https" || type == "h3"))
+                if (pathIndex > 0 && (server.type == "https" || server.type == "h3"))
                {
-                    path = remaining.Substring(pathIndex);
+                    server.path = remaining.Substring(pathIndex);
                }
            }
        }

-        return (type, host, port, path);
+        return server;
    }

    private async Task<int> GenExperimental(SingboxConfig singboxConfig)
@@ -1852,7 +2077,8 @@ public class CoreConfigSingboxService
            singboxConfig.experimental.cache_file = new CacheFile4Sbox()
            {
                enabled = true,
-                path = Utils.GetBinPath("cache.db")
+                path = Utils.GetBinPath("cache.db"),
+                store_fakeip = _config.SimpleDNSItem.FakeIP == true
            };
        }

@@ -1873,13 +2099,15 @@ public class CoreConfigSingboxService
        //convert route geosite & geoip to ruleset
        foreach (var rule in singboxConfig.route.rules.Where(t => t.geosite?.Count > 0).ToList() ?? [])
        {
-            rule.rule_set = rule?.geosite?.Select(t => $"{geosite}-{t}").ToList();
+            rule.rule_set ??= new List<string>();
+            rule.rule_set.AddRange(rule?.geosite?.Select(t => $"{geosite}-{t}").ToList());
            rule.geosite = null;
            AddRuleSets(ruleSets, rule.rule_set);
        }
        foreach (var rule in singboxConfig.route.rules.Where(t => t.geoip?.Count > 0).ToList() ?? [])
        {
-            rule.rule_set = rule?.geoip?.Select(t => $"{geoip}-{t}").ToList();
+            rule.rule_set ??= new List<string>();
+            rule.rule_set.AddRange(rule?.geoip?.Select(t => $"{geoip}-{t}").ToList());
            rule.geoip = null;
            AddRuleSets(ruleSets, rule.rule_set);
        }
@@ -1887,12 +2115,14 @@ public class CoreConfigSingboxService
        //convert dns geosite & geoip to ruleset
        foreach (var rule in singboxConfig.dns?.rules.Where(t => t.geosite?.Count > 0).ToList() ?? [])
        {
-            rule.rule_set = rule?.geosite?.Select(t => $"{geosite}-{t}").ToList();
+            rule.rule_set ??= new List<string>();
+            rule.rule_set.AddRange(rule?.geosite?.Select(t => $"{geosite}-{t}").ToList());
            rule.geosite = null;
        }
        foreach (var rule in singboxConfig.dns?.rules.Where(t => t.geoip?.Count > 0).ToList() ?? [])
        {
-            rule.rule_set = rule?.geoip?.Select(t => $"{geoip}-{t}").ToList();
+            rule.rule_set ??= new List<string>();
+            rule.rule_set.AddRange(rule?.geoip?.Select(t => $"{geoip}-{t}").ToList());
            rule.geoip = null;
        }
        foreach (var dnsRule in singboxConfig.dns?.rules.Where(t => t.rule_set?.Count > 0).ToList() ?? [])
@@ -1,6 +1,8 @@
 using System.Net;
 using System.Net.NetworkInformation;
+using System.Text.Json;
 using System.Text.Json.Nodes;
+using System.Text.Json.Serialization;

 namespace ServiceLib.Services.CoreConfig;

@@ -1134,6 +1136,264 @@ public class CoreConfigV2rayService
    }

    private async Task<int> GenDns(ProfileItem? node, V2rayConfig v2rayConfig)
+    {
+        try
+        {
+            var item = await AppHandler.Instance.GetDNSItem(ECoreType.Xray);
+            if (item != null && item.Enabled == true)
+            {
+                return await GenDnsCompatible(node, v2rayConfig);
+            }
+            var simpleDNSItem = _config.SimpleDNSItem;
+            var domainStrategy4Freedom = simpleDNSItem?.RayStrategy4Freedom;
+
+            //Outbound Freedom domainStrategy
+            if (domainStrategy4Freedom.IsNotEmpty())
+            {
+                var outbound = v2rayConfig.outbounds.FirstOrDefault(t => t is { protocol: "freedom", tag: Global.DirectTag });
+                if (outbound != null)
+                {
+                    outbound.settings = new()
+                    {
+                        domainStrategy = domainStrategy4Freedom,
+                        userLevel = 0
+                    };
+                }
+            }
+
+            await GenDnsServers(node, v2rayConfig, simpleDNSItem);
+            await GenDnsHosts(v2rayConfig, simpleDNSItem);
+        }
+        catch (Exception ex)
+        {
+            Logging.SaveLog(_tag, ex);
+        }
+        return 0;
+    }
+
+    private async Task<int> GenDnsServers(ProfileItem? node, V2rayConfig v2rayConfig, SimpleDNSItem simpleDNSItem)
+    {
+        static List<string> ParseDnsAddresses(string? dnsInput, string defaultAddress)
+        {
+            var addresses = dnsInput?.Split(dnsInput.Contains(',') ? ',' : ';')
+                .Select(addr => addr.Trim())
+                .Where(addr => !string.IsNullOrEmpty(addr))
+                .Select(addr => addr.StartsWith("dhcp", StringComparison.OrdinalIgnoreCase) ? "localhost" : addr)
+                .Distinct()
+                .ToList() ?? new List<string> { defaultAddress };
+            return addresses.Count > 0 ? addresses : new List<string> { defaultAddress };
+        }
+
+        static object CreateDnsServer(string dnsAddress, List<string> domains, List<string>? expectedIPs = null)
+        {
+            var dnsServer = new DnsServer4Ray
+            {
+                address = dnsAddress,
+                skipFallback = true,
+                domains = domains.Count > 0 ? domains : null,
+                expectedIPs = expectedIPs?.Count > 0 ? expectedIPs : null
+            };
+            return JsonUtils.SerializeToNode(dnsServer, new JsonSerializerOptions
+            {
+                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
+            });
+        }
+
+        var directDNSAddress = ParseDnsAddresses(simpleDNSItem?.DirectDNS, Global.DomainDirectDNSAddress.FirstOrDefault());
+        var remoteDNSAddress = ParseDnsAddresses(simpleDNSItem?.RemoteDNS, Global.DomainRemoteDNSAddress.FirstOrDefault());
+
+        var directDomainList = new List<string>();
+        var directGeositeList = new List<string>();
+        var proxyDomainList = new List<string>();
+        var proxyGeositeList = new List<string>();
+        var expectedDomainList = new List<string>();
+        var expectedIPs = new List<string>();
+        var regionNames = new HashSet<string>();
+
+        if (!string.IsNullOrEmpty(simpleDNSItem?.DirectExpectedIPs))
+        {
+            expectedIPs = simpleDNSItem.DirectExpectedIPs
+                .Split(new[] { ',', ';' }, StringSplitOptions.RemoveEmptyEntries)
+                .Select(s => s.Trim())
+                .Where(s => !string.IsNullOrEmpty(s))
+                .ToList();
+
+            foreach (var ip in expectedIPs)
+            {
+                if (ip.StartsWith("geoip:", StringComparison.OrdinalIgnoreCase))
+                {
+                    var region = ip["geoip:".Length..];
+                    if (!string.IsNullOrEmpty(region))
+                    {
+                        regionNames.Add($"geosite:{region}");
+                        regionNames.Add($"geosite:geolocation-{region}");
+                        regionNames.Add($"geosite:tld-{region}");
+                    }
+                }
+            }
+        }
+
+        var routing = await ConfigHandler.GetDefaultRouting(_config);
+        List<RulesItem>? rules = null;
+        if (routing != null)
+        {
+            rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet) ?? [];
+            foreach (var item in rules)
+            {
+                if (!item.Enabled || item.Domain is null || item.Domain.Count == 0)
+                {
+                    continue;
+                }
+
+                foreach (var domain in item.Domain)
+                {
+                    if (domain.StartsWith('#'))
+                        continue;
+                    var normalizedDomain = domain.Replace(Global.RoutingRuleComma, ",");
+
+                    if (item.OutboundTag == Global.DirectTag)
+                    {
+                        if (normalizedDomain.StartsWith("geosite:"))
+                        {
+                            (regionNames.Contains(normalizedDomain) ? expectedDomainList : directGeositeList).Add(normalizedDomain);
+                        }
+                        else
+                        {
+                            directDomainList.Add(normalizedDomain);
+                        }
+                    }
+                    else if (item.OutboundTag == Global.ProxyTag)
+                    {
+                        if (normalizedDomain.StartsWith("geosite:"))
+                        {
+                            proxyGeositeList.Add(normalizedDomain);
+                        }
+                        else
+                        {
+                            proxyDomainList.Add(normalizedDomain);
+                        }
+                    }
+                }
+            }
+        }
+
+        if (Utils.IsDomain(node?.Address))
+        {
+            directDomainList.Add(node.Address);
+        }
+
+        if (node?.Subid is not null)
+        {
+            var subItem = await AppHandler.Instance.GetSubItem(node.Subid);
+            if (subItem is not null)
+            {
+                foreach (var profile in new[] { subItem.PrevProfile, subItem.NextProfile })
+                {
+                    var profileNode = await AppHandler.Instance.GetProfileItemViaRemarks(profile);
+                    if (profileNode is not null &&
+                        profileNode.ConfigType is not (EConfigType.Custom or EConfigType.Hysteria2 or EConfigType.TUIC or EConfigType.Anytls) &&
+                        Utils.IsDomain(profileNode.Address))
+                    {
+                        directDomainList.Add(profileNode.Address);
+                    }
+                }
+            }
+        }
+
+        v2rayConfig.dns ??= new Dns4Ray();
+        v2rayConfig.dns.servers ??= new List<object>();
+
+        void AddDnsServers(List<string> dnsAddresses, List<string> domains, List<string>? expectedIPs = null)
+        {
+            if (domains.Count > 0)
+            {
+                foreach (var dnsAddress in dnsAddresses)
+                {
+                    v2rayConfig.dns.servers.Add(CreateDnsServer(dnsAddress, domains, expectedIPs));
+                }
+            }
+        }
+
+        AddDnsServers(remoteDNSAddress, proxyDomainList);
+        AddDnsServers(directDNSAddress, directDomainList);
+        AddDnsServers(remoteDNSAddress, proxyGeositeList);
+        AddDnsServers(directDNSAddress, directGeositeList);
+        AddDnsServers(directDNSAddress, expectedDomainList, expectedIPs);
+
+        var useDirectDns = rules?.LastOrDefault() is { } lastRule &&
+                          lastRule.OutboundTag == Global.DirectTag &&
+                          (lastRule.Port == "0-65535" ||
+                           lastRule.Network == "tcp,udp" ||
+                           lastRule.Ip?.Contains("0.0.0.0/0") == true);
+
+        var defaultDnsServers = useDirectDns ? directDNSAddress : remoteDNSAddress;
+        v2rayConfig.dns.servers.AddRange(defaultDnsServers);
+
+        return 0;
+    }
+
+    private async Task<int> GenDnsHosts(V2rayConfig v2rayConfig, SimpleDNSItem simpleDNSItem)
+    {
+        if (simpleDNSItem.AddCommonHosts == false && simpleDNSItem.UseSystemHosts == false && simpleDNSItem.Hosts.IsNullOrEmpty())
+        {
+            return await Task.FromResult(0);
+        }
+        v2rayConfig.dns ??= new Dns4Ray();
+        v2rayConfig.dns.hosts ??= new Dictionary<string, List<string>>();
+        if (simpleDNSItem.AddCommonHosts == true)
+        {
+            v2rayConfig.dns.hosts = Global.PredefinedHosts;
+        }
+
+        if (simpleDNSItem.UseSystemHosts == true)
+        {
+            var systemHosts = Utils.GetSystemHosts();
+            if (systemHosts.Count > 0)
+            {
+                var normalHost = v2rayConfig.dns.hosts;
+                if (normalHost != null)
+                {
+                    foreach (var host in systemHosts)
+                    {
+                        if (normalHost[host.Key] != null)
+                        {
+                            continue;
+                        }
+                        normalHost[host.Key] = new List<string> { host.Value };
+                    }
+                }
+            }
+        }
+
+        var userHostsMap = simpleDNSItem.Hosts?
+            .Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries)
+            .Where(line => !string.IsNullOrWhiteSpace(line))
+            .Where(line => line.Contains(' '))
+            .ToDictionary(
+                line =>
+                {
+                    var parts = line.Trim().Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
+                    return parts[0];
+                },
+                line =>
+                {
+                    var parts = line.Trim().Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
+                    var values = parts.Skip(1).ToList();
+                    return values;
+                }
+            );
+
+        if (userHostsMap != null)
+        {
+            foreach (var kvp in userHostsMap)
+            {
+                v2rayConfig.dns.hosts[kvp.Key] = kvp.Value;
+            }
+        }
+        return await Task.FromResult(0);
+    }
+
+    private async Task<int> GenDnsCompatible(ProfileItem? node, V2rayConfig v2rayConfig)
    {
        try
        {
@@ -1176,22 +1436,33 @@ public class CoreConfigV2rayService
                var systemHosts = Utils.GetSystemHosts();
                if (systemHosts.Count > 0)
                {
-                    var normalHost = obj["hosts"];
-                    if (normalHost != null)
+                    var normalHost1 = obj["hosts"];
+                    if (normalHost1 != null)
                    {
                        foreach (var host in systemHosts)
                        {
-                            if (normalHost[host.Key] != null)
+                            if (normalHost1[host.Key] != null)
                                continue;
-                            normalHost[host.Key] = host.Value;
+                            normalHost1[host.Key] = host.Value;
                        }
                    }
                }
            }
+            var normalHost = obj["hosts"];
+            if (normalHost != null)
+            {
+                foreach (var hostProp in normalHost.AsObject().ToList())
+                {
+                    if (hostProp.Value is JsonValue value && value.TryGetValue<string>(out var ip))
+                    {
+                        normalHost[hostProp.Key] = new JsonArray(ip);
+                    }
+                }
+            }

-            await GenDnsDomains(node, obj, item);
+            await GenDnsDomainsCompatible(node, obj, item);

-            v2rayConfig.dns = obj;
+            v2rayConfig.dns = JsonUtils.Deserialize<Dns4Ray>(obj.ToJsonString());
        }
        catch (Exception ex)
        {
@@ -1200,7 +1471,7 @@ public class CoreConfigV2rayService
        return 0;
    }

-    private async Task<int> GenDnsDomains(ProfileItem? node, JsonNode dns, DNSItem? dNSItem)
+    private async Task<int> GenDnsDomainsCompatible(ProfileItem? node, JsonNode dns, DNSItem? dNSItem)
    {
        if (node == null)
        {
@@ -1223,7 +1494,6 @@ public class CoreConfigV2rayService
                    && prevNode.ConfigType != EConfigType.Custom
                    && prevNode.ConfigType != EConfigType.Hysteria2
                    && prevNode.ConfigType != EConfigType.TUIC
-                    && prevNode.ConfigType != EConfigType.Anytls
                    && Utils.IsDomain(prevNode.Address))
                {
                    domainList.Add(prevNode.Address);
@@ -1235,7 +1505,6 @@ public class CoreConfigV2rayService
                    && nextNode.ConfigType != EConfigType.Custom
                    && nextNode.ConfigType != EConfigType.Hysteria2
                    && nextNode.ConfigType != EConfigType.TUIC
-                    && nextNode.ConfigType != EConfigType.Anytls
                    && Utils.IsDomain(nextNode.Address))
                {
                    domainList.Add(nextNode.Address);
@@ -1245,7 +1514,7 @@ public class CoreConfigV2rayService
            {
                var dnsServer = new DnsServer4Ray()
                {
-                    address = string.IsNullOrEmpty(dNSItem?.DomainDNSAddress) ? Global.DomainDNSAddress.FirstOrDefault() : dNSItem?.DomainDNSAddress,
+                    address = string.IsNullOrEmpty(dNSItem?.DomainDNSAddress) ? Global.DomainPureIPDNSAddress.FirstOrDefault() : dNSItem?.DomainDNSAddress,
                    skipFallback = true,
                    domains = domainList
                };