Is there any way I connect Apache to Tomcat using an HTTP proxy such that Tomcat gets the correct incoming host name rather than localhost? I'm using this directive in apache:
ProxyPass /path http://localhost:8080/path
But it comes through as localhost, which is useless when we have a bunch of sites on the same server. I could set the host manually in the server config:
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" proxyName="pretend.host" proxyPort="80" />
But that again doesn't serve more than one site. And I don't like the idea of using a different internal port for each site, that sounds really ugly.
Is there no way to transfer the port when I proxy it?
The settings you are looking for are:
<VirtualHost *:80> ServerName public.server.name ProxyRequests Off ProxyPreserveHost On <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPass / http://localhost:8080/ ProxyPassReverse / http://localhost:8080/ </VirtualHost>
Note that we're using localhost as the proxy target. We can do this since we enable ProxyPreserveHost. The documentation states that
It is mostly useful in special configurations like proxied mass name-based virtual hosting, where the original Host header needs to be evaluated by the backend server.
which sounds exactly like what you are doing.
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