diff --git a/FastGithub.Dns/DnsHostedService.cs b/FastGithub.Dns/DnsServerHostedService.cs
similarity index 96%
rename from FastGithub.Dns/DnsHostedService.cs
rename to FastGithub.Dns/DnsServerHostedService.cs
index 05a8429..499eebc 100644
--- a/FastGithub.Dns/DnsHostedService.cs
+++ b/FastGithub.Dns/DnsServerHostedService.cs
@@ -14,13 +14,13 @@ namespace FastGithub.Dns
     /// <summary>
     /// dns鍚庡彴鏈嶅姟
     /// </summary>
-    sealed class DnsHostedService : BackgroundService
+    sealed class DnsServerHostedService : BackgroundService
     {
         private const int SIO_UDP_CONNRESET = unchecked((int)0x9800000C);
 
         private readonly IRequestResolver requestResolver;
         private readonly IOptions<DnsOptions> options;
-        private readonly ILogger<DnsHostedService> logger;
+        private readonly ILogger<DnsServerHostedService> logger;
 
         private readonly Socket socket = new(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
         private readonly byte[] buffer = new byte[ushort.MaxValue];
@@ -33,10 +33,10 @@ namespace FastGithub.Dns
         /// <param name="githubRequestResolver"></param>
         /// <param name="options"></param>
         /// <param name="logger"></param>
-        public DnsHostedService(
+        public DnsServerHostedService(
             GithubRequestResolver githubRequestResolver,
             IOptions<DnsOptions> options,
-            ILogger<DnsHostedService> logger)
+            ILogger<DnsServerHostedService> logger)
         {
             this.options = options;
             this.logger = logger;
diff --git a/FastGithub.Dns/DnsServiceCollectionExtensions.cs b/FastGithub.Dns/DnsServiceCollectionExtensions.cs
index c36bfe6..715480f 100644
--- a/FastGithub.Dns/DnsServiceCollectionExtensions.cs
+++ b/FastGithub.Dns/DnsServiceCollectionExtensions.cs
@@ -20,7 +20,7 @@ namespace FastGithub
             var assembly = typeof(DnsServiceCollectionExtensions).Assembly;
             return services
                 .AddServiceAndOptions(assembly, configuration)
-                .AddHostedService<DnsHostedService>();
+                .AddHostedService<DnsServerHostedService>();
         }
     }
 }
diff --git a/FastGithub/appsettings.json b/FastGithub/appsettings.json
index 30c7b58..e1d67a0 100644
--- a/FastGithub/appsettings.json
+++ b/FastGithub/appsettings.json
@@ -1,7 +1,7 @@
 {
   "Dns": {
     "UpStream": "114.114.114.114", // 上游dns
-    "GithubTTL": "00:10:00", // github相关域名解析结果的存活时长
+    "GithubTTL": "00:05:00", // github相关域名解析结果的存活时长
     "SetToLocalMachine": true, // 是否设置本机使用此dns(仅支持windows)   
     "UseGithubReverseProxy": true // 是否使用反向代理访问github以解决连接被重复的问题 
   },
@@ -15,7 +15,7 @@
     },
     "PublicDnsProvider": {
       "Enable": true, // 是否需要从dns服务器查找ip
-      "Timeout": "00:00:00.100", // dns查询超时时长
+      "Timeout": "00:00:00.200", // dns查询超时时长
       "Dnss": [ // dns服务器列表
         "1.2.4.8",
         "8.8.8.8",