When I restart httpd, I get the following error.  What am I missing?[root@localhost ~]# service httpd restartStopping httpd:                                            [  OK  ]Starting httpd: Syntax error on line 22 of /etc/httpd/conf.d/sites.conf:Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configurationI have installed mod_ssl using yum install mod_ssl opensshPackage 1:mod_ssl-2.2.15-15.el6.centos.x86_64 already installed and latest versionPackage openssh-5.3p1-70.el6_2.2.x86_64 already installed and latest versionMy sites.conf looks like this<VirtualHost *:80>#    ServerName shop.itmanx.com    ServerAdmin webmaster@itmanx.com    DocumentRoot /var/www/html/magento    <Directory /var/www/html>        Options -Indexes        AllowOverride All    </Directory>    ErrorLog logs/shop-error.log    CustomLog logs/shop-access.log</VirtualHost><VirtualHost *:443>    ServerName secure.itmanx.com    ServerAdmin webmaster@itmanx.com    SSLEngine on    SSLCertificateFile /etc/httpd/ssl/secure.itmanx.com/server.crt    SSLCertificateKeyFile /etc/httpd/ssl/secure.itmanx.com/server.key    SSLCertificateChainFile /etc/httpd/ssl/secure.itmanx.com/chain.crt    DocumentRoot /var/www/html/magento    <Directory /var/www/html>        Options -Indexes        AllowOverride All    </Directory>    ErrorLog logs/shop-ssl-error.log    CustomLog logs/shop-ssl-access.log    </VirtualHost>
apache2 Invalid command 'SSLEngine'
ssl;apache httpd
Probably you do not load the ssl module. You should have a LoadModule directive somewhere in your apache configuration files.Something like: LoadModule ssl_module /usr/lib64/apache2-prefork/mod_ssl.soUsually apache configuration template has (on any distribution) a file called (something like) loadmodule.conf in which you should find a LoadModule directive for each module you load into apache at server start.