iRule to redirect a URI to a different node and URI while masking the url to the user

When you say "then rewrite the header to maintain the original URL?" do you want to send the original URL to the destination server? Or are you simply saying that you don't want the client to know you messed with the headers?

If it is the latter, you can just rewrite the HTTP::host and HTTP:uri headers with the new information because the uri is not included in the http response. Something like this:

when HTTP_REQUEST { if { ([HTTP::host] equals "www.xyz.com") && ([HTTP::uri] equals "/a") } { HTTP::host "www.newhost.com" HTTP::uri "/your_new_uri" pool your_pool } }

Hope this helps.

Robert