This directive sets the optional <em>all-in-one</em> file where you can
assemble the certificates of Certification Authorities (CA) which form the
certificate chain of the server certificate. This starts with the issuing CA
certificate of of the server certificate and can range up to the root CA
certificate. Such a file is simply the concatenation of the various
PEM-encoded CA Certificate files, usually in certificate chain order.</p>
<p>
This should be used alternatively and/or additionally to <code class="directive"><a href="#sslcacertificatepath">SSLCACertificatePath</a></code> for explicitly
constructing the server certificate chain which is sent to the browser
in addition to the server certificate. It is especially useful to
avoid conflicts with CA certificates when using client
authentication. Because although placing a CA certificate of the
server certificate chain into <code class="directive"><a href="#sslcacertificatepath">SSLCACertificatePath</a></code> has the same effect
for the certificate chain construction, it has the side-effect that
client certificates issued by this same CA certificate are also
accepted on client authentication. That's usually not one expect.</p>
<p>
But be careful: Providing the certificate chain works only if you are using a
<em>single</em> (either RSA <em>or</em> DSA) based server certificate. If you are
using a coupled RSA+DSA certificate pair, this will work only if actually both
certificates use the <em>same</em> certificate chain. Else the browsers will be
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>File of concatenated PEM-encoded client certificates and keys to be used by the proxy</td></tr>
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Directory of PEM-encoded client certificates and keys to be used by the proxy</td></tr>
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