Forum Discussion

msmith_64485's avatar
msmith_64485
Icon for Nimbostratus rankNimbostratus
Jan 25, 2010

IP to FQDN

Looking for an irule that will replace the IP address of outgoing traffic with the FQDN. Issue is external server does not have a valid PTR record to allow resolution. Owner of this server does not ...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jan 29, 2010

Posted By msmith on 01/29/2010 7:01 AM

Aaron,

If I make this change the irule will only impact the vip that is configured to use the rule correct?

That's correct--an iRule only affects the VIP(s) it's added to.

So you've made the change but the requests still fail?

You can use this rule to log the change: 

 
 when HTTP_REQUEST {   
     Replace the host header with www.example.com   
    HTTP::header replace Host "www.example.com"   
 } 
 when HTTP_REQUEST priority 501 {   
     Log the host header value 
    log local0. "[IP::client_addr]:[TCP::client_port]: Current HTTP Host: [HTTP::host]"   
 }

Aaron