Forum Discussion

Greg_Hooper_370's avatar
Greg_Hooper_370
Icon for Nimbostratus rankNimbostratus
Nov 17, 2010

iRule to replace http:// ipaddress for https://fqdn

Hi,     Apologies for asking this question but as a complete newbie to the F5 some guidance would be most helpful. We have the following problem     User sends the following request to Bus...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Nov 18, 2010
If you need to use the hostname that resolves to the virtual server instead of the IP, you could use an iRule like this: 


http://devcentral.f5.com/wiki/default.aspx/iRules/RewriteHTTPRedirectHostname.html

when HTTP_REQUEST {

    Save host name (use VS IP if no HTTP host header was found
   if {[HTTP::host] eq ""}{
      set host [IP::local_addr]
   } else {
      set host [HTTP::host]
   }
}
when HTTP_RESPONSE {

    Check if server response is a redirect
   if { [HTTP::header is_redirect]} {

       Log original and updated values
      log local0. "Original Location header value: [HTTP::header value Location],\
         updated: [string map -nocase "http:// https:// [IP::server_addr] $host" [HTTP::header value Location]]"

       Do the update, replacing http:// with https:// and the server IP with the host or VS IP
      HTTP::header replace Location [string map -nocase "http:// https:// [IP::server_addr] $host" [HTTP::header value Location]]
   }
}

Aaron