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Forum Discussion

thashack00_9151's avatar
thashack00_9151
Historic F5 Account
Oct 07, 2013

Redirect https:// to https://www

Hello DevCentral members! I am trying to write an iRule to redirect my host from https:// to https://www for all requests. My rule is listed below. Does this look like it will work? I want to ru...
application delivery
design
devops
iRules
Joe_Pruitt's avatar
Joe_Pruitt
Oct 07, 2013

If you have both hostname.net and www.hostname.net on the same virtual, this iRule will result in an infinite loop as you are using a "contains" comparison and "www.hostname.net" contains "hostname.net" and it will in turn redirect to "www.www.hsotname.net". I'd try something like this

when HTTP_REQUEST {
  if { !([HTTP::host] starts_with "www.") &&
        ([HTTP::host] contains "hostname.net") ) {
    HTTP::redirect "https://www.[HTTP::host][HTTP::uri]"
  }
}

Whether you leave in the second condition is up to you. It may very well work just by checking whether or not the host starts with "www.".

Also keep in mind that if this is on a SSL vip, you'll have to be terminating SSL for the iRule to be able to look at the HTTP request. But, I'm assuming you are doing this anyway since you are using a class profile.

-Joe