diff --git a/FastGithub.Configuration/LocalMachine.cs b/FastGithub.Configuration/LocalMachine.cs
index a3d1c2f..a9ed7e1 100644
--- a/FastGithub.Configuration/LocalMachine.cs
+++ b/FastGithub.Configuration/LocalMachine.cs
@@ -18,7 +18,7 @@ namespace FastGithub.Configuration
         public static string Name => Environment.MachineName;
 
         /// <summary>
-        /// 获取设备所有IP
+        /// 获取本机设备所有IP
         /// </summary>
         /// <returns></returns>
         public static IEnumerable<IPAddress> GetAllIPAddresses()
@@ -36,7 +36,7 @@ namespace FastGithub.Configuration
         }
 
         /// <summary>
-        /// 获取设备所有IPv4
+        /// 获取本机设备所有IPv4
         /// </summary>
         /// <returns></returns>
         public static IEnumerable<IPAddress> GetAllIPv4Addresses()
@@ -51,7 +51,7 @@ namespace FastGithub.Configuration
         }
 
         /// <summary>
-        /// 返回设备是否包含指定IP
+        /// 返回本机设备是否包含指定IP
         /// </summary>
         /// <param name="address"></param>
         /// <returns></returns>
@@ -61,11 +61,11 @@ namespace FastGithub.Configuration
         }
 
         /// <summary>
-        /// 获取对应的本机地址
+        /// 获取与远程节点通讯的的本机IP地址
         /// </summary>
         /// <param name="remoteEndPoint">远程地址</param>
         /// <returns></returns>
-        public static IPAddress? GetLocalAddress(EndPoint remoteEndPoint)
+        public static IPAddress? GetLocalIPAddress(EndPoint remoteEndPoint)
         {
             try
             {
@@ -78,5 +78,27 @@ namespace FastGithub.Configuration
                 return default;
             }
         }
+
+        /// <summary>
+        /// 是否可以监听指定tcp端口
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        public static bool CanListenTcp(int port)
+        {
+            var tcpListeners = IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpListeners();
+            return tcpListeners.Any(item => item.Port == port) == false;
+        }
+
+        /// <summary>
+        /// 是否可以监听指定udp端口
+        /// </summary>
+        /// <param name="port"></param>
+        /// <returns></returns>
+        public static bool CanListenUdp(int port)
+        {
+            var udpListeners = IPGlobalProperties.GetIPGlobalProperties().GetActiveUdpListeners();
+            return udpListeners.Any(item => item.Port == port) == false;
+        }
     }
 }
diff --git a/FastGithub.Dns/DnsServer.cs b/FastGithub.Dns/DnsServer.cs
index f2489b0..202270b 100644
--- a/FastGithub.Dns/DnsServer.cs
+++ b/FastGithub.Dns/DnsServer.cs
@@ -2,9 +2,7 @@
 using FastGithub.Configuration;
 using Microsoft.Extensions.Logging;
 using System;
-using System.Linq;
 using System.Net;
-using System.Net.NetworkInformation;
 using System.Net.Sockets;
 using System.Threading;
 using System.Threading.Tasks;
@@ -47,8 +45,7 @@ namespace FastGithub.Dns
                 UdpTable.KillPortOwner(port);
             }
 
-            var udpListeners = IPGlobalProperties.GetIPGlobalProperties().GetActiveUdpListeners();
-            if (udpListeners.Any(item => item.Port == port))
+            if (LocalMachine.CanListenUdp(port) == false)
             {
                 throw new FastGithubException($"udp端口{port}已经被其它进程占用");
             }
diff --git a/FastGithub.Dns/RemoteEndPointRequest.cs b/FastGithub.Dns/RemoteEndPointRequest.cs
index fc1c466..a997d7e 100644
--- a/FastGithub.Dns/RemoteEndPointRequest.cs
+++ b/FastGithub.Dns/RemoteEndPointRequest.cs
@@ -29,9 +29,9 @@ namespace FastGithub.Dns
         /// 获取对应的本机地址
         /// </summary> 
         /// <returns></returns>
-        public IPAddress? GetLocalAddress()
+        public IPAddress? GetLocalIPAddress()
         {
-            return LocalMachine.GetLocalAddress(this.RemoteEndPoint);
+            return LocalMachine.GetLocalIPAddress(this.RemoteEndPoint);
         }
     }
 }
diff --git a/FastGithub.Dns/RequestResolver.cs b/FastGithub.Dns/RequestResolver.cs
index 84cd48a..73dc259 100644
--- a/FastGithub.Dns/RequestResolver.cs
+++ b/FastGithub.Dns/RequestResolver.cs
@@ -57,7 +57,7 @@ namespace FastGithub.Dns
             var domain = question.Name;
             if (this.fastGithubConfig.IsMatch(domain.ToString()) == true)
             {
-                var localAddress = remoteEndPointRequest.GetLocalAddress() ?? IPAddress.Loopback;
+                var localAddress = remoteEndPointRequest.GetLocalIPAddress() ?? IPAddress.Loopback;
                 var record = new IPAddressResourceRecord(domain, localAddress, this.ttl);
                 response.AnswerRecords.Add(record);
 
diff --git a/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs b/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs
index 8ae55c0..353fc02 100644
--- a/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs
+++ b/FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs
@@ -5,9 +5,7 @@ using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using System;
-using System.Linq;
 using System.Net;
-using System.Net.NetworkInformation;
 using System.Security.Authentication;
 
 namespace FastGithub
@@ -29,7 +27,7 @@ namespace FastGithub
                 TcpTable.KillPortOwner(HTTP_PORT);
             }
 
-            if (CanTcpListen(HTTP_PORT) == false)
+            if (LocalMachine.CanListenTcp(HTTP_PORT) == false)
             {
                 var loggerFactory = kestrel.ApplicationServices.GetRequiredService<ILoggerFactory>();
                 var logger = loggerFactory.CreateLogger($"{nameof(FastGithub)}.{nameof(ReverseProxy)}");
@@ -53,7 +51,7 @@ namespace FastGithub
                 TcpTable.KillPortOwner(HTTPS_PORT);
             }
 
-            if (CanTcpListen(HTTPS_PORT) == false)
+            if (LocalMachine.CanListenTcp(HTTPS_PORT) == false)
             {
                 throw new FastGithubException($"由于tcp端口{HTTPS_PORT}已经被其它进程占用，{nameof(FastGithub)}无法进行必须的https反向代理");
             }
@@ -71,16 +69,5 @@ namespace FastGithub
                 https.ServerCertificateSelector = (ctx, domain) => certService.GetOrCreateServerCert(domain);
             }));
         }
-
-        /// <summary>
-        /// 是否可以监听指定端口
-        /// </summary>
-        /// <param name="port"></param>
-        /// <returns></returns>
-        private static bool CanTcpListen(int port)
-        {
-            var tcpListeners = IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpListeners();
-            return tcpListeners.Any(item => item.Port == port) == false;
-        }
     }
 }