apache2启用的module

sudo a2enmod ssl
sudo a2enmod headers
sudo a2enmod rewrite
sudo a2enmod proxy

网站正常运行，但是出现服务器500错误“If you are using a DSO version of mod_proxy, make sure the proxy submodules are included in the configuration using LoadModule”，此时启用模块：
sudo a2enmod proxy_http
然后重启apache2