From c3cf8f8f5ca5fb8ec12835c4e67c1d7c4b2090ac Mon Sep 17 00:00:00 2001
From: Amos Jeffries <squid3@treenet.co.nz>
Date: Sun, 27 Nov 2011 20:07:25 +1300
Subject: [PATCH] Bug 3301: Update CONNECT_FAIL message to mention DNS and
 connectivity issues

---
 errors/templates/ERR_CANNOT_FORWARD | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/errors/templates/ERR_CANNOT_FORWARD b/errors/templates/ERR_CANNOT_FORWARD
index 7e7a7a4518..6abe3ce1a5 100644
--- a/errors/templates/ERR_CANNOT_FORWARD
+++ b/errors/templates/ERR_CANNOT_FORWARD
@@ -23,7 +23,15 @@ body
 <p><b>Unable to forward this request at this time.</b></p>
 </blockquote>
 
-<p>This request could not be forwarded to the origin server or to any parent caches. The most likely cause for this error is that the cache administrator does not allow this cache to make direct connections to origin servers, and all configured parent caches are currently unreachable.</p>
+<p>This request could not be forwarded to the origin server or to any parent caches.</p>
+
+<p>Some possible problems are:</p>
+<ul>
+<li id="missing-dns">The domain name <q>%H</q> might not be found in DNS.</li>
+<li id="network-down">An Internet connection needed to access this domains origin servers may be down.</li>
+<li id="no-peer">All configured parent caches may be currently unreachable.</li>
+<li id="permission-denied">The administrator may not allow this cache to make direct connections to origin servers.</li>
+</ul>
 
 <p>Your cache administrator is <a href="mailto:%w%W">%w</a>.</p>
 
-- 
2.47.3