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Forum Discussion

Tony2020's avatar
Tony2020
Icon for Nimbostratus rankNimbostratus
Nov 08, 2016

LTM displaying notification based on matching muliple DNS alias/hostnames tied to the VIP

Hi All,   I have tired to get this working but it does not seem to be.   Here is what we need to do.   When users comes in as or (DNS alias) that points to this same VIP, we want the F5 to loo...
application delivery
BIG-IP
iRules
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Nov 08, 2016

Hi Tony,

you may try the iRule below as a starting point...

when HTTP_REQUEST { 
    switch -exact -- [string tolower [HTTP::host]] {
        "host1" -
        "host2" {
            switch -exact -- [HTTP::uri] {
                "/decommission-message" {
                    HTTP::respond 200 content "

    
        
            Link Decommission Notification
        
    
    
        
        
            Dear All:
            
            
            Please note that the site/domain for \"Host1\" and \"Host2\" will no longer be used.
            
            
            We apologize for any inconvenience, please use \"NewHostLink\" instead.
            
            
            Thank you.
            
        
    
" "Content-Type" "text/html"

                } 
                default {
                    HTTP::redirect "/decommission-message"
                }
            }
        }
    }
}

Note: The line

contains a 
$stime
variable that is not defined in this iRule. You have to check that the variable is defined somewhere else, otherwise the HTTP::response will throw an error.*

Cheers, Kai