ubuntu启用apache的mod_headers和mod_expires

ubuntu部署好wordpress后,发现插件wp_super_cache里面有几个警告,请启用mod_expires和mod_headers.
可以按照以下命令,启用apache的缓存

root@vr:~# a2enmod headers
Enabling module headers.
To activate the new configuration, you need to run:
  service apache2 restart
root@vr:~# a2enmod expires
Enabling module expires.
To activate the new configuration, you need to run:
  service apache2 restart
root@vr:~# service apache2 restart
 * Restarting web server apache2
 

问题解决！