Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

ukitsysadmin_95's avatar
ukitsysadmin_95
Icon for Nimbostratus rankNimbostratus
Nov 10, 2009

replace http::host headers

Is it possible to do the following     when HTTP_REQUEST {   if { [HTTP::host] starts_with "preview.www."} {     I want to redirect to     HTTP::redirect "htt...
application delivery
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Nov 10, 2009
Actually, the domain command won't work for this scenario if you need to support example.com and example.co.uk...

How about this instead: 

 
  when HTTP_REQUEST {  
    
     log local0. "[IP::client_addr]:[TCP::client_port]: New [HTTP::method] request to [HTTP::host][HTTP::uri]"  
    
     if { [string tolower [HTTP::host]] starts_with "preview.www."} {  
    
        log local0. "[IP::client_addr]:[TCP::client_port]: Redirecting to preview2.www.[getfield [string tolower [HTTP::host]] preview.www. 2]"  
        HTTP::redirect "http://preview2.www.[getfield [string tolower [HTTP::host]] preview.www. 2]" 
     }  
  }

Aaron