apache2无效的命令'SSLEngine'

重新启动httpd时，出现以下错误。我想念什么？

[root@localhost ~]# service httpd restart
Stopping 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 configuration

我已经使用安装了mod_ssl yum install mod_ssl openssh

Package 1:mod_ssl-2.2.15-15.el6.centos.x86_64 already installed and latest version
Package openssh-5.3p1-70.el6_2.2.x86_64 already installed and latest version

我的sites.conf看起来像这样

<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>

可能您没有加载ssl模块。您应该在apache配置文件中的某处具有LoadModule指令。

就像是：

LoadModule ssl_module /usr/lib64/apache2-prefork/mod_ssl.so

通常，apache配置模板（在任何发行版上）都有一个名为（类似）的文件loadmodule.conf，您应该LoadModule在服务器启动时为加载到apache中的每个模块找到一个指令。

在许多系统（Ubuntu，Suse，Debian等）上，运行以下命令来启用Apache的SSL mod：

sudo a2enmod ssl

a2enmod手册页

在CentOS 7上，安装软件包“ mod_ssl”并重新启动apache服务器对我有用：

yum install mod_ssl
systemctl restart httpd

httpd24解决方案：

yum install mod24_ssl

在Ubntu 18.04仿生上。

须藤a2enmod ssl; sudo服务apache2重新启动