From d295a92663119a4ee749543ae61901e2df8ebc5e Mon Sep 17 00:00:00 2001
From: Mukund Sivaraman <muks@isc.org>
Date: Tue, 6 Oct 2015 05:57:26 +0530
Subject: [PATCH] Add note about Windows (#40761)

(cherry picked from commit 31cca00bba8c9204b842de1a43248fd42041b207)
(cherry picked from commit 0774c4c6f68b243d28283ec1043dce03f505c8d6)
---
 bin/named/named.docbook | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bin/named/named.docbook b/bin/named/named.docbook
index 788c18fcb8..f00b1631cd 100644
--- a/bin/named/named.docbook
+++ b/bin/named/named.docbook
@@ -313,6 +313,8 @@
             If <option>-n</option> has been set to a higher value than
             the number of detected CPUs, then <option>-U</option> may
             be increased as high as that value, but no higher.
+            On Windows, the number of UDP listeners is hardwired to 1
+            and this option has no effect.
           </para>
         </listitem>
       </varlistentry>