Same instructions as for every certificate.
<VirtualHost _default_:443>
DocumentRoot /home/httpd/private
ErrorLog /usr/local/apache/logs/error_log
TransferLog /usr/local/apache/logs/access_log
SSLEngine on
SSLProtocol all -SSLv2
SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM
SSLCertificateFile /usr/local/apache/conf/ssl.crt
SSLCertificateKeyFile /usr/local/apache/conf/ssl.key
SSLCertificateChainFile /usr/local/apache/conf/sub.class1.server.ca.pem
CustomLog /usr/local/apache/logs/ssl_request_log \
"%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
</VirtualHost>