--- a/dns.rst	Sun Dec 20 20:11:29 2020 +0200
+++ b/dns.rst	Tue Dec 22 11:23:56 2020 +0200
@@ -169,3 +169,15 @@
 FreeBSD::
 
   $ named.reload
+
+Windows built-in DNS server
+===
+
+Show DNS cache::
+
+  ipconfig /displaydns
+
+Flush the cache content::
+
+  ipconfig /flushdns
+