I used the Apache Nginx, Varnish option under web servers. I believe the configuration is correct, but when I tried to launch, Apache failed.
Under the web control panel, it shows nginx running, apache is not running. My html pages are working, other sites based on php don't seem to be working.
Here's the error message. I have searched for this on the internet but found no similar post.
httpd: Syntax error on line 72 of /etc/httpd/conf/httpd.conf: Cannot load modules/mod_authz_host.so into server: /usr/local/apache/modules/mod_authz_host.so: undefined symbol: ap_get_useragent_host