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Forum Discussion

Cid_Isbell_1617's avatar
Cid_Isbell_1617
Icon for Nimbostratus rankNimbostratus
Mar 10, 2006

http response rewrite of url

I have a BigIP box that is loadbalancing two servers in a pool. A user will type in ecc.empireblue.com, and then is redirected to   https://smeeccweb01/Citrix/MetaFrame/default/default.aspx   ...
application delivery
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Joe_Pruitt's avatar
Joe_Pruitt
Mar 13, 2006
I'd throw in some logging to find out exactly what isn't working. BTW, you can use the "HTTP::host" command to extract the current host. Also, the header is "Host" although I believe the header replace command ignores case. I've also made your second if and elseif so it doesn't have to be processed if the first one succeeds.

when HTTP_RESPONSE {
  set newhost "eccext.empireblue.com"    
  log local0. "Requested Host: [HTTP::host]"
  if { [HTTP::host] eq "smeeccweb01" } {      
    log local0. "Found requested host smeeccweb01, replacing with $newhost"
    HTTP::header replace "Host" $newhost      
  } elseif { [HTTP::host] eq "smeeccweb02" } {      
    log local0. "Found requested host smeeccweb02, replacing with $newhost"
    HTTP::header replace "Host" $newhost      
  }    
}

The look in the /var/log/ltm file to see what was going on. If the messages show that the header replace command is being called, yet you don't see the correct Host header on your backend server, then this might be an issue you need to bring up with product support because this should work.

-Joe