我在Debian VM上的Apache2服务器上安装了虚拟主机，我从GoDaddy创建了SSL证书并下载了crt文件（证书和链）
在添加SSL之前，DocumentRoot指向：
/var/www/html/websitename/public_html/loader.php 工作正常。
但是，当我在虚拟主机中添加SSLEngineOn，SSLCertificationFile和SSLCertificationChainFile时，Apache2服务器拒绝启动，这是服务器日志：
May 07 20:05:05 ns507219 systemd[1]: Starting The Apache HTTP Server...
May 07 20:05:05 ns507219 apachectl[2228]: AH00112: Warning: DocumentRoot [/var/www/html/websitename/public_html/loader.php] does not exist
May 07 20:05:05 ns507219 apachectl[2228]: AH00112: Warning: DocumentRoot [/var/www/html/websitename/public_html/loader.php] does not exist
May 07 20:05:05 ns507219 apachectl[2228]: AH00112: Warning: DocumentRoot [/var/www/html/websitename/public_html/loader.php] does not exist
May 07 20:05:05 ns507219 apachectl[2228]: Action 'start' failed.
这是我的配置：
<VirtualHost websitename.ca:80>
ServerAdmin admin@websitename.ca
#SSLEngine on
#SSLCertificateFile /etc/ssl/certs/mycertificate.crt
#SSLCertificateChainFile /etc/ssl/certs/mychain.crt
DocumentRoot /var/www/html/websitename/public_html/loader.php
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
<FilesMatch "\.php$">
SetHandler "proxy:fcgi://127.0.0.1:9000/"
</FilesMatch>
</VirtualHost>
<IfModule mod_ssl.c>
<VirtualHost websitename.ca:443>
ServerAdmin admin@websitename.ca
DocumentRoot /var/www/html/websitename/public_html/loader.php
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
SSLEngine on
SSLCertificateFile /etc/ssl/certs/mycertificate.crt
SSLCertificateChainFile /etc/ssl/certs/mychain.crt
<FilesMatch "\.(cgi|shtml|phtml|php)$">
SSLOptions +StdEnvVars
</FilesMatch>
<Directory /usr/lib/cgi-bin>
SSLOptions +StdEnvVars
</Directory>
</VirtualHost>
</IfModule>
如果删除if条件，则设置可以正常工作，但SSL无法正常工作。