From cfc070b1ef5190dd34b9edd754b5bea91f81667a Mon Sep 17 00:00:00 2001
From: ChsBuffer <33744752+chsbuffer@users.noreply.github.com>
Date: Thu, 5 Nov 2020 15:41:05 +0800
Subject: [PATCH] fix: clear DNS Cache wont clean system dns cache

---
 Netch/Forms/MainForm.MenuStrip.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Netch/Forms/MainForm.MenuStrip.cs b/Netch/Forms/MainForm.MenuStrip.cs
index f93c6499..a3dcb6f4 100644
--- a/Netch/Forms/MainForm.MenuStrip.cs
+++ b/Netch/Forms/MainForm.MenuStrip.cs
@@ -235,7 +235,12 @@ namespace Netch.Forms
         {
             try
             {
-                await Task.Run(() => DNS.Cache.Clear());
+                await Task.Run(() =>
+                {
+                    NativeMethods.FlushDNSResolverCache();
+                    DNS.Cache.Clear();
+                });
+
                 StatusText(i18N.Translate("DNS cache cleanup succeeded"));
             }
             catch (Exception)