iRules for reverse proxy

Ok, your solution works.

But I try to understand the difference between http::uri and http::redirect...

Can you explain me this : HTTP::redirect "http://[getfield [HTTP::host] ":" 1]/french/"

I suppose you do this for putting /french/ on the uri. But, why ":" 1]/french/" ?

Another question :

When I do :

when HTTP_REQUEST {

if { not ([HTTP::uri] equals "/cacti/") } {

[HTTP::uri] "/cacti/"

}

}

Why I obtain a white page on the web browser with (traducted into english by me!!) :

ERROR
The URL asked can't be loaded
Trying to load the URL :  http://xxx.xxx.xxx.xxx/english
This error was meet :
Error of reading
The system returned :
    (104) Connection reset by peer
One error is being trying to acceed to the network.  

Thank you for your help!