apache

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Varnish and HTTPS with Apache

Today I wanted to run a website with HTTPS and Varnish. Varnish itself does not support SSL, and for good reasons. So the setup we need is HTTPS termination => Varnish => Webserver. So we need a software that can handle HTTPS and forward requests over HTTP to Varnish. A couple of options for HTTPS termination are HAProxy, Nginx, Squid or Apache. I went with Apache, as it was already installed on the server in question, thus reducing the complexity of the setup.

On Apache, you need to enable mod_proxy. The Apache SSL configuration looks like this:

#/etc/apache2/sites-available/example.com-ssl
<VirtualHost *:443>
    ServerName www.example.com

    ProxyPreserveHost On
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