F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

hassan_35513's avatar
hassan_35513
Icon for Nimbostratus rankNimbostratus
Oct 14, 2008

Rewrite IP to Host name

I have client connecting to 1.1.1.1 and I want to rewrite their request to www.mydomain.com. I also have clients going directly to www.mydomain.com.   What is the best way to doing it.  
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Oct 15, 2008
I'm not sure whether it would be more efficient to rewrite all host headers to www.mydomain.com or check if the host header isn't www.mydomain.com and then rewrite it. Here is an example of the latter: 

  
  when HTTP_REQUEST {  
    
      Check if requested host is not www.mydomain.com  
     if {not ([string tolower [HTTP::host]] eq "www.mydomain.com")}{  
    
         Rewrite host to www.mydomain.com  
        HTTP::header replace Host "www.mydomain.com"  
     }  
  }

Aaron