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Forum Discussion

avnishvyas_1974's avatar
avnishvyas_1974
Icon for Nimbostratus rankNimbostratus
Apr 06, 2017

iRule help with adding a customer header

Im trying to write an iRule for the following if response from a particular URL [] returns a 401 then to add a custom header with WWW-AUTHENTICATE with dummy value BASIC realm="USER VISIBLE REALM" or...
cloud
LTM
Leonardo_Souza's avatar
Leonardo_Souza
Icon for Cirrocumulus rankCirrocumulus
Apr 06, 2017

Yes, should work.

I just tested the iRule, with small change to match my lab environment.

Headers without iRule:

HTTP/1.1 200 OK
Date: Thu, 06 Apr 2017 11:16:07 GMT
Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.1e-fips PHP/5.4.16
X-Powered-By: PHP/5.4.16
Set-Cookie: Chocolate=Price%3D1pound; expires=Thu, 06-Apr-2017 11:17:07 GMT
Set-Cookie: Coconut=Price%3D2pounds; expires=Thu, 06-Apr-2017 11:18:07 GMT
Content-Length: 503
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8

iRule:

when HTTP_RESPONSE { 
  if { ( [HTTP::status] eq "200" ) and ( [HTTP::header exists X-Powered-By] ) } {
    HTTP::header replace X-Powered-By "ok"
  }
}

Headers after iRule applied to virtual server:

HTTP/1.1 200 OK
Date: Thu, 06 Apr 2017 11:18:43 GMT
Server: Apache/2.4.6 (CentOS) OpenSSL/1.0.1e-fips PHP/5.4.16
X-Powered-By: ok
Set-Cookie: Chocolate=Price%3D1pound; expires=Thu, 06-Apr-2017 11:19:43 GMT
Set-Cookie: Coconut=Price%3D2pounds; expires=Thu, 06-Apr-2017 11:20:43 GMT
Content-Length: 497
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8