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Forum Discussion

Eric_Robeson_27's avatar
Eric_Robeson_27
Icon for Nimbostratus rankNimbostratus
May 09, 2006

Logging large headers

Hi,   I'm seeing errors like the following in my logs, and I would like to track down the headers that are triggering them. I don't know what the name of the header is that is triggering these erro...
application delivery
dev
devops
iRules
Deb_Allen_18's avatar
Deb_Allen_18
Historic F5 Account
May 09, 2006
Assuming the request is passing unmodified through the rule despite the error, this should work:

when HTTP_RESPONSE {
   set headers [HTTP::header names]
   foreach header_name $headers {
      if { [string length [HTTP::header $header_name]] > 32768 }{
        log local0. "HTTP header [HTTP::header $header_name] ([string length [HTTP::header $header_name]]) exceeded maximum allowed size of 32768"
      }
   }
}