HTTP header redirect

Posted By smiley_dba on 06/28/2010 09:18 AM

V.10.2

Having a issue when trying to do a redirect. When a client types in www.xxx.com, we want the load balancer to look at the header, and auto redirect to www.yyy.com. Currently, I tried to use the following:

when HTTP_REQUEST {

if { ([HTTP::host] != "www.xxx.com") } {

HTTP::redirect "http://www.yyy.com"

}

}

I does not redirect at all. it just sits there. Any help is great appreciated.

You're basically trying to do a host redirect. You've used the "!" character which basically = "not" so you're saying if your host doesn't equal "www.xxx.com" then redirect to www.yyy.com" Remove the "!" and see what happens.

when HTTP_REQUEST { 
  if { ([HTTP::host] eq "www.xxx.com") } {
    HTTP::redirect "http://www.yyy.com"
  }
}

Or maybe you could change the rule to check if the host isn't www.yyy.com redirect to www.yyy.com? Either way, adding debug logging is a good way to figure out what code is executing:

 

 

when HTTP_REQUEST {

   log local0. "[IP::client_addr]:[TCP::client_port]: [HTTP::method] request to [HTTP::host][HTTP::uri]"

   if { ([HTTP::host] != "www.yyy.com") } {
      log local0. "[IP::client_addr]:[TCP::client_port]: Matched host check, redirecting."
      HTTP::redirect "http://www.yyy.com"
   }
}

 

 

Aaron

Received an error:

 

 

01070151:3: Rule [xxx_to_yyy_yyyy.com_Redirect] error: line 3: [wrong args] [HTTP::redirect "yyyy.com" target="_blank" rel="nofollow">"yyy.com"]

 

 

Did i miss a carrot?

Tried the

 

 

 

when HTTP_REQUEST {

 

if { ([HTTP::host] eq "www.xxx.com") } {

 

HTTP::redirect "http://www.yyy.com" target="_blank" rel="nofollow">http://www.yyy.com"

 

}

 

}

 

 

But received the error

 

 

 

01070151:3: Rule [xxx_to_yyy_yyyy.com_Redirect] error: line 3: [wrong args] [HTTP::redirect "yyyy.com" target="_blank" rel="nofollow">"yyy.com"]

 

The Rule that is giving you an Error doesn't have your previous "if not" matching requirement.

Try this:

when HTTP_REQUEST { 
if { !([HTTP::host] equals "www.xxx.com") } {
HTTP::redirect "http://www.yyy.com"
HTTP::respond 301 Location "http://www.yyy.com"
}
}

HTTP::redirect - gives a 302 Temporary Redirect

HTTP::respond 301 Location - gives a 301 Permanent Redirect.

 

01070151:3: Rule [xxx_to_yyy_yyyy.com_Redirect] error: line 3: [wrong args] [HTTP::redirect "yyyy.com" target="_blank" rel="nofollow">"yyy.com"]

 

 

 

The DC forum code is breaking the code blocks by incorrectly autolinking anything starting with http://. Everything after the second double quote in the line is errant and should be removed (target="_blank" rel="nofollow">http://www.yyy.com").

 

 

Michael's latest post should give you some valid examples.

 

 

Aaron