Reverse proxy - transparency to client

Yes, you can do that. Pretty simple to do via an iRule.

There much less complicated ways to do this but this one is comprehensive but you can, at least, steal the necessary bits or concepts from it to create a custom iRule.

Thanks R Marc. Does anyone have a sample configuration? I trying to figure out where to start. I can usually fumble my way through it if I have an example.

Also, R Marc. What are the other easier methods you are referring to?

Here is what I have in the lab now. Its not working, but I am sure I am missing something.

when HTTP_REQUEST {
    if {[HTTP::uri] equals "/en-us/blog/topquartile"}{
    HTTP::host "www.topquartile.com"
    pool pool_www.topquartile.com-http
    }
}


Anyone, anyone, bueller, bueller....

Thanks.


Brett

Putting in an answer rather than a comment on the thread since comments don't format the same way:

You are just changing the host header there (which you may need to do just depends on if the backend does anything with the host header) and assigning the request to a particular pool. Is it safe to assume that www.topquartile.com/en-us/blog/topquartile is a valid url and the pool members in pool_www.topquartile.com-http are the ones responsible for www.topquartile.com?

If so, I don't see anything wrong with that, but often of times there is a location redirect on blogs to what they think their name is. You'd have to intercept that and change it. You can log the response headers and see what it's sending.

when HTTP_RESPONSE {
           log local0. "============================================="
           foreach aHeader [HTTP::header names] {
                        log local0. "$aHeader: [HTTP::header value $aHeader]"
           }
           log local0. "============================================="
        }
}

If you see a 301 or 302, you'll need to modify the location redirect in the response. String map is the easiest way to do that:

HTTP::header replace Location [string map {someurl anotherurl} [HTTP::header Location]]

when HTTP_RESPONSE {
        log local0. "scooby.doo"
        foreach aHeader [HTTP::header names] {
        log local0. "$aHeader: [HTTP::header value $aHeader]"
        }
        log local0. "scooby.dumb"
        }
}


This is not working.  I get an error on line 3.  (foreach aHeader [HTTP::header names] {)
I am new at iRules, so pardon my ignorance.  

"Is it safe to assume that www.topquartile.com/en-us/blog/topquartile is a valid url and the pool members in pool_www.topquartile.com-http are the ones responsible for www.topquartile.com?" Yes the URL is similar. This isnt the exact URL, but close. I do have it pointing at pool_www.topquartile.com-http (cloud server). I dont think this is going to work though. I think I need to reverse proxy it, and manipulate the header to somehow think the client is on www.topquartile.com/en-us/blog/topquartile, when in fact its on www.topquartile.com (only when going to the blog).