URL redirect when URL is lacking a domain name

Is this on an intranet environment where "abc" will be resolved by a name lookup? Assuming that's the case, then as long as the host IP for "abc" is configured as a virtual server on the BIG-IP, you could create an iRule like this:

when HTTP_REQUEST { 
   if { [HTTP::host] eq "abc" } { 
     HTTP::header replace "Host" "abc.com" 
   } 
 }

-Joe

here is the iRule I have built. It doesn't seem to be working as the FQDN doesn't appear to be getting passed on to the authentication piece of our app. In the browser, the user enters "http://chargeit", they are then taken to a login screen. That screen requires the FQDN for authentication. That being "chargeit-test.avnet.com".

 

 

when HTTP_REQUEST {

 

if { [HTTP::host] eq "chargeit-test" } {

 

HTTP::header replace "Host" "chargeit-test.avnet.com"

 

}

 

}

You could add logging to the iRule and use a browser plugin like HttpFox for Firefox or Fiddler for IE to view the client to VIP communication.

 
 when HTTP_REQUEST { 
  
    log local0. "[IP::client_addr]:[TCP::client_port]: [HTTP::method] request to [HTTP::host][HTTP::uri]" 
  
     Check if host is chargeit-test 
    if { [HTTP::host] eq "chargeit-test" } { 
  
       log local0. "[IP::client_addr]:[TCP::client_port]: Replacing host header." 
  
        Replace the Host header 
       HTTP::header replace "Host" "chargeit-test.avnet.com" 
    } 
 } 
 

Aaron

here's what I have thus far. Same results if I use double-quotes around Host in replace statement.

 

 

when HTTP_REQUEST {

 

Check if host is chargeit-test

 

if { [HTTP::host] eq "chargeit-test" } {

 

log local0. "[IP::client_addr]:[TCP::client_port]: [HTTP::method] request to [HTTP::host][HTTP::uri]"

 

log local0. "[IP::client_addr]:[TCP::client_port]: Replacing host header."

 

Replace the Host header

 

HTTP::header replace Host "chargeit-test.avnet.com"

 

log local0. "[IP::client_addr]:[TCP::client_port]: [HTTP::method] after rewrite [HTTP::host][HTTP::uri]"

 

}

 

}

 

 

 

Oct 13 08:49:49 tmm tmm[1637]: Rule chargeit-logging : 10.64.33.42:2589: GET request to chargeit-test/

 

Oct 13 08:49:49 tmm tmm[1637]: Rule chargeit-logging : 10.64.33.42:2589: Replacing host header.

 

Oct 13 08:49:49 tmm tmm[1637]: Rule chargeit-logging : 10.64.33.42:2589: GET after rewrite chargeit-test/

 

The HTTP::host value is cached, but the update is still done. If you want to see the effect of the change you could either check the server logs or log the value in a later priority HTTP_REQUEST event:

 
 when HTTP_REQUEST {  
  
    log local0. "[IP::client_addr]:[TCP::client_port]: [HTTP::method] request to [HTTP::host][HTTP::uri]"  
  
     Check if host is chargeit-test  
    if { [HTTP::host] eq "chargeit-test" } {  
  
       log local0. "[IP::client_addr]:[TCP::client_port]: Replacing host header."  
  
        Replace the Host header  
       HTTP::header replace "Host" "chargeit-test.avnet.com"  
    }  
 }  
 when HTTP_REQUEST priority 501 { 
  
     log local0. "[IP::client_addr]:[TCP::client_port]: (501) [HTTP::method] request to [HTTP::host][HTTP::uri]"  
 } 
 

Aaron