<title>SSL/TLS Strong Encryption: Compatibility</title>
<summary>
+<note type="warning"><title>Historical Document</title>
+<p>This page describes compatibility with SSL products that have been
+discontinued for many years (Apache-SSL, Stronghold, Raven SSL, Red Hat
+Secure Web Server). It is retained for historical reference only. If you
+are configuring mod_ssl on a current Apache httpd installation, see
+<a href="ssl_howto.html">SSL/TLS How-To</a> instead. This page is a
+candidate for removal in a future release.</p>
+</note>
+
<p>
This page covers backwards compatibility between mod_ssl and other
SSL solutions. mod_ssl is not the only SSL solution for Apache; four
where mod_ssl were originally derived in 1998), Red Hat's commercial
Secure Web Server (which was based on mod_ssl), Covalent's commercial
Raven SSL Module (also based on
-mod_ssl) and finally C2Net's (now Red Hat's) commercial product <a
-href="http://www.redhat.com/explore/stronghold/">Stronghold</a> (based
+mod_ssl) and finally C2Net's (now Red Hat's) commercial product
+Stronghold (based
on a different evolution branch, named Sioux up to Stronghold 2.x, and
based on mod_ssl since Stronghold 3.x).</p>