Forum Discussion
Romain_Vergnio1
Nimbostratus
NimbostratusHow to remove the "Server: BIGIP" header when using "HTTP::redirect"
Hello all,
I use an iRule to redirect HTTP traffic to HTTPS and it works fine, here it is :
----------------------------------------------------------
when HTTP_REQUEST {
Redirects all to HTTPS keeps URI intact
HTTP::redirect https://[HTTP::host][HTTP::uri]
}
----------------------------------------------------------
However I noticed that BigIP adds a "Server: BIG-IP" header in the response, is there a way to remove it ?
I tried all these examples without success :
----------------------------------------------------------
when HTTP_REQUEST {
Redirects all to HTTPS keeps URI intact
HTTP::redirect https://[HTTP::host][HTTP::uri]
HTTP::header remove Server
}
-----------------------------------------------------------
or
-----------------------------------------------------------
when HTTP_REQUEST {
Redirects all to HTTPS keeps URI intact
HTTP::redirect https://[HTTP::host][HTTP::uri]
}
when HTTP_RESPONSE {
HTTP::header remove Server
}
------------------------------------------------------------
or even (I know it's the same but it tried it anyway...) :
iRule n°1
------------------------------------------------------------
when HTTP_REQUEST {
Redirects all to HTTPS keeps URI intact
HTTP::redirect https://[HTTP::host][HTTP::uri]
}
------------------------------------------------------------
iRule n°2
------------------------------------------------------------
when HTTP_RESPONSE {
HTTP::header remove Server
}
------------------------------------------------------------
It seems that "when HTTP_RESPONSE" matches only when receiving the response from the web server, not when the "redirect" function is used.
Anyone has an idea ?
Thanks a lot.
Regards,
Romain Vergniol
4 Replies
hoolioCirrostratus
I thought you might be able to avoid the Server: BIG-IP header by using HTTP::respond, like so:
when HTTP_REQUEST {
HTTP::respond 302 Location "https://[HTTP::host][HTTP::uri]"
}
...but I still see the Server: BIG-IP header in the response.
I was thinking you might be able to reset the header in an HTTP profile, but that looks to only be applicable to requests being sent to a node.
Aaron- You could try specifying the Server header in the HTTP::respond command. eg:
when HTTP_REQUEST { HTTP::respond 302 Location "https://[HTTP::host][HTTP::uri]" Server blablabla } - Try this rule out then ...
when HTTP_REQUEST { set my_loc "http://www.i_want_a_bigip_for_christmas.com" TCP::respond "HTTP/1.1 302 Found\r\nLocation: $my_loc\r\nConnection: close\r\nContent-Length: 0\r\n\r\n" TCP::close } 
Jason_R-J_47029As of 9.4.2 you can use HTTP::respond to achieve the same thing:
when HTTP_REQUEST { HTTP::respond 302 noserver Location "https://[HTTP::host][HTTP::uri]" }The noserver flag suppresses that header.
