we have 3 external web urls which will come on our frontend f5 and redirect to internal web urls and use as a revers proxy

Hi Raj_Kumar,

it will work, but I would recommend to change the syntax slightly, so that you execute the

[string tolower]

HTTP_REQUEST

when HTTP_REQUEST { 
    set low_host [string tolower [HTTP::host]]
    if { $low_host equals "site1ex.com" } then { 
        HTTP::redirect "http://site1in.com" 
    } 
    elseif { $low_host equals "site2ex.com" } then {
        HTTP::redirect "http://site2in.com"
    } 
    elseif { $low_host equals "site3ex.com" } then {
        HTTP::redirect "http://site3in.com"
    }
}

Cheers, Kai