diff --git a/FastGithub.DomainResolve/DomainResolver.cs b/FastGithub.DomainResolve/DomainResolver.cs
index fb629c3..754f222 100644
--- a/FastGithub.DomainResolve/DomainResolver.cs
+++ b/FastGithub.DomainResolve/DomainResolver.cs
@@ -72,7 +72,7 @@ namespace FastGithub.DomainResolve
             }
             catch (Exception)
             {
-                this.logger.LogTrace($"由于{pureDns}解析{domain}失败，本次使用{fastDns}");
+                this.logger.LogWarning($"由于{pureDns}解析{domain}失败，本次使用{fastDns}");
                 return await LookupCoreAsync(fastDns, domain, cancellationToken);
             }
         }
diff --git a/FastGithub.Http/HttpClient.cs b/FastGithub.Http/HttpClient.cs
index 8db9f8c..064cf30 100644
--- a/FastGithub.Http/HttpClient.cs
+++ b/FastGithub.Http/HttpClient.cs
@@ -23,7 +23,6 @@ namespace FastGithub.Http
         public HttpClient(DomainConfig domainConfig, IDomainResolver domainResolver)
             : this(domainConfig, new HttpClientHandler(domainResolver), disposeHandler: true)
         {
-            this.domainConfig = domainConfig;
         }
 
         /// <summary>
diff --git a/FastGithub.ReverseProxy/RequestLoggingMilldeware.cs b/FastGithub.ReverseProxy/RequestLoggingMilldeware.cs
index afe4064..e838031 100644
--- a/FastGithub.ReverseProxy/RequestLoggingMilldeware.cs
+++ b/FastGithub.ReverseProxy/RequestLoggingMilldeware.cs
@@ -60,7 +60,7 @@ namespace FastGithub.ReverseProxy
             }
             else
             {
-                this.logger.LogError($"{message}{Environment.NewLine}{exception.Message}");
+                this.logger.LogError($"{message}{Environment.NewLine}{exception}");
             }
         }
     }
diff --git a/FastGithub.ReverseProxy/ReverseProxyMiddleware.cs b/FastGithub.ReverseProxy/ReverseProxyMiddleware.cs
index 73d67cd..b0c451c 100644
--- a/FastGithub.ReverseProxy/ReverseProxyMiddleware.cs
+++ b/FastGithub.ReverseProxy/ReverseProxyMiddleware.cs
@@ -105,7 +105,7 @@ namespace FastGithub.ReverseProxy
             await context.Response.WriteAsJsonAsync(new
             {
                 error = error.ToString(),
-                message = errorFeature.Exception?.ToString()
+                message = errorFeature.Exception?.Message
             });
         }
     }
diff --git a/FastGithub/Program.cs b/FastGithub/Program.cs
index 6a455f6..89da123 100644
--- a/FastGithub/Program.cs
+++ b/FastGithub/Program.cs
@@ -1,6 +1,7 @@
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Hosting;
+using System;
 using System.IO;
 
 namespace FastGithub
@@ -41,6 +42,7 @@ namespace FastGithub
                 .ConfigureWebHostDefaults(webBuilder =>
                 {
                     webBuilder.UseStartup<Startup>();
+                    webBuilder.UseShutdownTimeout(TimeSpan.FromSeconds(2d));
                     webBuilder.UseKestrel(kestrel =>
                     {
                         kestrel.ListenHttpReverseProxy();
diff --git a/FastGithub/appsettings.json b/FastGithub/appsettings.json
index c108d5b..37ccbc1 100644
--- a/FastGithub/appsettings.json
+++ b/FastGithub/appsettings.json
@@ -30,7 +30,7 @@
       "Yarp": "Warning",
       "System": "Warning",
       "Microsoft": "Warning",
-      "Microsoft.AspNetCore.Server.Kestrel": "None"
+      "Microsoft.AspNetCore.Server.Kestrel": "Error"
     }
   }
 }