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Forum Discussion

dan_6764's avatar
dan_6764
Icon for Nimbostratus rankNimbostratus
Jan 13, 2009

HTTP redirect maintaining original URL

Hi,   I have a simple irule that works fine for what I need. A request comes in (say to www.mypage.co.uk), if the LB pool has no active nodes the client request is redirected to a " sorry" page....
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 13, 2009
If you want to redirect to the host or URI that the client made a request to, you'd need to save the host or URI in HTTP_REQUEST for every request and then reference it in LB_FAILED: 

 
 when HTTP_REQUEST { 
  
     Save the host header value 
    set host [HTTP::host] 
  
     Save the URI (not sure you want to do anything with the URI though) 
    set uri [HTTP::uri] 
 } 
 when LB_FAILED { 
  
     Send 302 redirect with the host header value from the request 
    HTTP::respond 302 Location "http://$host/sorry/"  
 }

Aaron