我在谷歌云计算引擎中部署了我的wordpress站点。要启用SSL，我遵循此处概述的步骤https://www.onepagezen.com/free-ssl-certificate-wordpress-google-cloud-click-to-deploy

安装Certbot客户端生成证书配置证书启用HTTPS重定向重新启动Apache服务器更新WordPress URL/etc/apache2/sites-available/default-ssl.conf

<IfModule mod_ssl.c>
    <VirtualHost _default_:443>
        ServerAdmin webmaster@localhost
        DocumentRoot /var/www/html

        <Directory /var/www/html>
            Options Indexes FollowSymLinks MultiViews
            AllowOverride All
            Order allow,deny
            Allow from all
            Require all granted
        </Directory> 
    ...

以及/etc/apache2/sites-available/wordpress.conf

<VirtualHost *:80>

  ServerAdmin webmaster@localhost
  DocumentRoot /var/www/html
  ServerName mydomain.com
  ServerAlias mydomain.com
  Redirect permanent / https..mydomain.com

  <Directory />
    Options FollowSymLinks
    AllowOverride None
  </Directory>

  <Directory /var/www/html/>
    Options Indexes FollowSymLinks MultiViews
    AllowOverride All
    Order allow,deny
    Allow from all
  </Directory>

    ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
  <Directory "/usr/lib/cgi-bin">
    AllowOverride None
    Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
    Order allow,deny
    Allow from all
  </Directory>

  ErrorLog ${APACHE_LOG_DIR}/error.log
  # Possible values include: debug, info, notice, warn, error, crit,
  # alert, emerg.
  LogLevel warn
  CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

设置完所有内容后，我运行：

sudo a2ensite default-ssl
sudo a2enmod ssl
sudo service apache2 restart

SSL在后端和登录页上运行良好。然而，对于所有其他页面，我得到了404。当我从自定义永久链接切换到简单永久链接时，页面可以再次访问。你知道是什么导致了这个问题吗？

$_SERVER[\'HTTPS\']=\'on\';