Full certificate chain in Apache

Combining certificates to a chain file:

[root@localhost certs]# cd /etc/pki/tls/certs
[root@localhost certs]# openssl x509 -inform PEM -in www.2.0.0.example.com -text > www.2.0.0.example.com-combined.crt
[root@localhost certs]# openssl x509 -inform PEM -in cacert.pem -text >> www.2.0.0.example.com-combined.crt

<VirtualHost 172.16.52.182:443>
SSLEngine on
SSLCertificateChainFile /etc/pki/tls/certs/www.2.0.0.example.com-combined.crt
SSLCertificateFile /etc/pki/tls/certs/www.2.0.0.example.com.crt
SSLCertificateKeyFile /etc/pki/tls/private/www.2.0.0.example.com.key
<Directory /var/www/vhosts/example.com/httpsdocs>
AllowOverride All
</Directory>
DocumentRoot /var/www/vhosts/example.com/httpsdocs
ServerName www.2.0.0.example.com
</VirtualHost>