On 11.09.2010 04:12, Mike Schleif wrote:
On 9/10/2010 3:19 PM, Mike Schleif wrote: > > On 9/10/2010 12:07 PM, Sander Temme wrote: > > > > On Sep 10, 2010, at 5:23 AM, Mike Schleif wrote: > > > >> SSL: move all SSL to the new frontend? No SSL running on legacy web > server? > > > > Absolutely. You'll find that Apache 2.2.16 comes with mod_ssl > bundled. Terminate SSL on the currently shipping server. > > > > Note that the Apache Software Foundation only ships source code: an > important distinction on a platform that doesn't bundle the web server > by default, and where users usually don't wield compilers. However, a > build with and without SSL enabled is usually made available as a > courtesy, and can be downloaded from > http://httpd.apache.org/download.cgi . You may also find Windows builds > on sites like http://www.apachelounge.com/ . > > > > S. > > Is there more to it than ProxyPass and ProxyPassReverse ? > > I found this: > > http://www.apachetutor.org/admin/reverseproxies > > I want this to work as simply as possible. I know that SSL moves to the > NEW server. Which modules need I load? According to the above link, I > think we need these: > > ### MUST have for Reverse Proxy > LoadModule proxy_module modules/mod_proxy.so > LoadModule proxy_http_module modules/mod_proxy_http.so > LoadModule headers_module modules/mod_headers.so > LoadModule deflate_module modules/mod_deflate.so > ### > > However, that link also mentions the following, which I do not find in > the httpd.conf: > > LoadFile /usr/lib/libxml2.so > LoadModule xml2enc_module modules/mod_xml2enc.so > LoadModule proxy_html_module modules/mod_proxy_html.so > > > Please, advise. Thank you. Still not certain whether or not we need the XML and HTML modules. Do we?
You don't need it in general. mod_proxy_html allows very powerful rewriting of e.g. links contained in the responses returned from the backend server. If the backend includes self-referential absolute links and you have to rewrite them to point to the proxy instead (fifferent name or different port), mod_proxy_html is very useful.
As long as the wrong URLs only occur in redirects, a simple ProxyPassReverse suffices. If you only want to replace very simple patterns in the content of the responses, mod_substitute might do, which is nowadays bundled with Apache 2.2.x.
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