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ronniep_79067's avatar
ronniep_79067
Icon for Nimbostratus rankNimbostratus
Nov 13, 2009

Help: Force to use DNS name

I have been looking for a while, but cannot locate any information. Is there a way one can use and irule to force a user to use dns as apposed to an IP address to connect to a server? Any help would b...
application delivery
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devops
iRules
hooleylist's avatar
hooleylist
Icon for Cirrostratus rankCirrostratus
Nov 13, 2009
Hi Ronnie,

You could check the Host header value for at least one alpha character. If there isn't one, then redirect to a hardcoded hostname with the original URI: 

 
 when HTTP_REQUEST { 
  
     Check if host header value contains at least one alpha character 
    if { not ([ string match -nocase "*\[a-z\]*" [HTTP::host] ])}{ 
  
        Redirect client to the correct hostname, preserving the original URI 
       HTTP::redirect "http://www.example.com[HTTP::uri] 
    } 
 }

Aaron