On Wed, Mar 7, 2012 at 5:04 PM, Jorge Andres Osorio <jvoorhe...@gmail.com> wrote: > Hi people: > > I'm having issues with and old Apache 2.0.52 running as a reverse > proxy to a Websphere server. The description of the problem is exactly > the same that someone has with Apache 2.2.x in this URL: > > http://www.tek-tips.com/viewthread.cfm?qid=1577780 > > Before just trying to upgrade my production reverse proxy server from > the current to the latest Apache version, I would like to know if > there's any kind of problem similar to these that maybe has been > addressed with some specific settings or something like that. > > I hope someone can help me or point me to some ideas. > > Thanks > > P.D: my english isn't very good >
The key to successful reverse proxying is to ensure that you do not require the HTML to be rewritten. If the HTML needs to be rewritten, then Apache must parse the HTML as best it can, and then fixup the HTML. This is done with a 3rd party module (in 2.0 and 2.2, IIRC it's included with 2.4) called mod_proxy_html. If your HTML is not valid, and it cannot parse it, it will do the best it can, which could involve dropping bits of the HTML it could not understand. I don't know anything about Websphere, but in general you don't need to rewrite the HTML as long as you follow these simple rules: 1) Use relative URLs throughout. '/index.html' not 'http://my-backend-server/index.html'. 2) Host the application at the URI you intend to serve it at. Eg, if your users access the web-app from 'www.example.com/foo/wibble', the backend should serve it from 'backend/foo/wibble'. 3) Use ProxyPreserveHost On on the proxy, and on the backends use UseCanonicalName Off and UseCanonicalPhysicalPort Off (or their equivalent). This will result in the Host header being passed to the backend, and used to construct canonical (non relative) URLs. All of our websites at $JOB are served through reverse proxy, and follow these rules, and none of them require HTML rewriting. Cheers Tom --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org For additional commands, e-mail: users-h...@httpd.apache.org
