Apache HTTP Server is an open source HTTP web server for UNIX-like systems (BSD, Linux, and UNIX), Microsoft Windows, and other platforms.
DreamHost Apache version
In the past, one could determine information about the web server from the HTTP response headers through the Server header. However, for security reasons, it was decided to set ServerTokens to "Prod" and as a result, the value of this header only returns Apache. It cannot be modified using an .htaccess file.
For example, if you run this command now, the only response is Apache:
[server]$ curl -Is http://example.com | grep Server Server: Apache
To find the version of Apache currently running, run the following:
[server]$ /usr/sbin/apache2 -v
Apache modules for DreamHost
Please note that some of the modules only work if they are enabled via the panel (e.g., Passenger) and some modules depend on what type of server you are on.
If you need the xsendfile module enabled, you must contact support on the Contact Support page. Please be sure to mention on which domain you would like it enabled. Also, if you need the proxy module, that can only be enabled on a VPS or Dedicated Server.
For further information on Apache modules, visit the following page: