[users@httpd] Can ProxyPass/Rewrite add a Host header?

[Garth Winter Webb <ga...@perijove.com>]

Hi, I'm currently moving a website from one hosting company to another. 
After I paid for the service I realized that they do not provide a
static IP address.  Rather, you update your domain name do use their DNS
servers.  Right now, if I ask their domain name servers what IP my
domain has, it returns an IP for one of their servers (say, 1.2.3.4),
while bringing up my domain in a web browser brings me to my current
site.

What I'd like to do is set up a proxy server on a separate machine that
will proxy pass to 1.2.3.4 so that I can get everything working properly
on their servers and then flip the DNS switch.  However since they seem
to do name base virtual hosting, I also need to pass along the Host
header to let it know what domain I intend to access with 1.2.3.4.

ProxyPass and friends don't seem to have any options for this, and
Rewrite offers the [E] flag for setting environment variables, but I'm
not sure if this will do what I want.  Any suggestions, or pointers to
something I've missed?  If this is not possible I'll probably end up
buying a new domain name to use before the transition and point it at
the new hosting servers.

Note that the new hosting company offers access to their servers pre-dns
switch via a URL like:

    http://hosting.server.com/~clientname

but for reasons that are not relevant to this question, this will not
work for me.

Thanks!

-- 
Garth Winter Webb <ga...@perijove.com>

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Re: [users@httpd] Can ProxyPass/Rewrite add a Host header?

[Joshua Slive <jo...@slive.ca>]

On Tue, 13 May 2003, Garth Winter Webb wrote:
> What I'd like to do is set up a proxy server on a separate machine that
> will proxy pass to 1.2.3.4 so that I can get everything working properly
> on their servers and then flip the DNS switch.  However since they seem
> to do name base virtual hosting, I also need to pass along the Host
> header to let it know what domain I intend to access with 1.2.3.4.

In 2.0 you have ProxyPreserveHost:
http://httpd.apache.org/docs-2.0/mod/mod_proxy.html#proxypreservehost

In 1.3 you might by able to mess with the DNS resolution on your proxy to
make it believe that the origin has a different name than its real name.

Joshua.

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