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Subject svn commit: r1782140 - /httpd/httpd/trunk/docs/manual/mod/core.xml
Date Wed, 08 Feb 2017 10:34:26 GMT
Author: elukey
Date: Wed Feb  8 10:34:25 2017
New Revision: 1782140

Add debugging info to the HttpProtocolOption directive doc

In bugzilla and users@ we keep receiving questions about
how to test the new restrictions imposed by HttpProtocolOptions.
Added some info about how to use openssl s_client properly
and the mod_dumpio's directives to debug (thanks to
Daniel Ferradal for this suggestion).


Modified: httpd/httpd/trunk/docs/manual/mod/core.xml
--- httpd/httpd/trunk/docs/manual/mod/core.xml (original)
+++ httpd/httpd/trunk/docs/manual/mod/core.xml Wed Feb  8 10:34:25 2017
@@ -1323,6 +1323,15 @@ EnableSendfile On
         # Missing CRLF<br />
         GET / HTTP/1.0\n\n
+      <note type="warning"><title>Command line tools and CRLF</title>
+        <p>Some tools need to be forced to use CRLF, otherwise httpd will return
+        a HTTP 400 response like described in the above use case. For example,
+        the <strong>OpenSSL s_client needs the -crlf parameter to work
+        properly</strong>.</p>
+        <p>The <directive module="mod_dumpio">DumpIOInput</directive> directive
+        can help while reviewing the HTTP request to identify issues like the
+        absence of CRLF.</p>
+      </note>

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