iRule to redirect a variable to http

e.g.

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool Pool_Test_Sorry_Alfresco
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}

[root@ve1023:Active] config  b pool Pool_Test_Sorry_Alfresco list
pool Pool_Test_Sorry_Alfresco {
   monitor all http
   members 200.200.200.101:80 {}
}

[root@ve1023:Active] config  b pool Pool_Test_Sorry_Alfresco|grep -i pool\ member
+-> POOL MEMBER Pool_Test_Sorry_Alfresco/200.200.200.101:80   active,up

[root@ve1023:Active] config  curl -I http://172.28.19.79
HTTP/1.1 200 OK
Date: Thu, 09 Feb 2012 15:25:01 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Fri, 11 Nov 2011 14:48:14 GMT
ETag: "4183e4-3e-9c564780"
Accept-Ranges: bytes
Content-Length: 62
Content-Type: text/html; charset=UTF-8

[root@ve1023:Active] config  b pool Pool_Test_Sorry_Alfresco monitor all fake

[root@ve1023:Active] config  b pool Pool_Test_Sorry_Alfresco|grep -i pool\ member
+-> POOL MEMBER Pool_Test_Sorry_Alfresco/200.200.200.101:80   inactive,down

[root@ve1023:Active] config  curl -I http://172.28.19.79
HTTP/1.0 302 Found
Location: http://dev-sorry-webarch.xyz.com
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

Nitass hi,

 

 

When i used F5 as a proxy. I defined the proxy address in my browser.

 

 

Somehow it returned the web address like this:

 

 

http://www.nba.comhttp//www.nba.com.acme.com.nz/

 

 

any info is appreciated. thanks!

it is because header is different when requesting directly and using explicit proxy.

this is directly request.

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
Feb 13 02:26:36 local/tmm notice tmm[4822]: 013e0001:5: Tcpdump starting bcast on :::0 from 127.1.1.1:34917
New TCP connection 1: 172.28.19.251(45151) <-> 172.28.19.79(80)
1329128801.9948 (0.0009)  C>S
---------------------------------------------------------------
HEAD /whatever HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Accept: */*
Host: www.yahoo.com.acme.com.nz

---------------------------------------------------------------

this is request with f5 as an explicit proxy.

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
Feb 13 02:27:30 local/tmm notice tmm[4822]: 013e0001:5: Tcpdump starting bcast on :::0 from 127.1.1.1:57671
New TCP connection 1: 172.28.19.251(45152) <-> 172.28.19.79(80)
1329128868.8840 (0.0012)  C>S
---------------------------------------------------------------
HEAD http://www.yahoo.com.acme.com.nz/whatever HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5
Host: www.yahoo.com.acme.com.nz
Pragma: no-cache
Accept: */*
Proxy-Connection: Keep-Alive

---------------------------------------------------------------

this is an example irule when using f5 as an explicit proxy.

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   set host [string tolower [HTTP::host]]
   set proxy_uri [string tolower [HTTP::uri]]
   set uri [getfield $proxy_uri $host 2]
   set newhost [string map {".acme.com.nz" ""} $host]

   if {$host ne $newhost} {
      HTTP::redirect "http://$newhost$uri"
   }
}
}

[root@ve1023:Active] config  curl -I http://www.yahoo.com.acme.com.nz/whatever -x 172.28.19.79:80
HTTP/1.0 302 Found
Location: http://www.yahoo.com/whatever
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

Hello Nitass..Thanks for this configuration..but can you give me config to be used in webconsole..not on command line...

hi Kalpesh,

 

 

what configuration are you talking about? is it the one i posted on 02/09/2012 11:22 PM?

02/09/2012 03:21 PM

e.g.

 

 

 

[root@ve1023:Active] config b virtual bar list

 

virtual bar {

 

snat automap

 

pool Pool_Test_Sorry_Alfresco

 

destination 172.28.19.79:80

 

ip protocol 6

 

rules myrule

 

profiles {

 

http {}

 

tcp {}

 

}

 

}

 

 

[root@ve1023:Active] config b pool Pool_Test_Sorry_Alfresco list

 

pool Pool_Test_Sorry_Alfresco {

 

monitor all http

 

members 200.200.200.101:80 {}

 

}

 

 

[root@ve1023:Active] config b pool Pool_Test_Sorry_Alfresco|grep -i pool\ member

 

+-> POOL MEMBER Pool_Test_Sorry_Alfresco/200.200.200.101:80 active,up

 

 

[root@ve1023:Active] config curl -I http://172.28.19.79

 

HTTP/1.1 200 OK

 

Date: Thu, 09 Feb 2012 15:25:01 GMT

 

Server: Apache/2.2.3 (CentOS)

 

Last-Modified: Fri, 11 Nov 2011 14:48:14 GMT

 

ETag: "4183e4-3e-9c564780"

 

Accept-Ranges: bytes

 

Content-Length: 62

 

Content-Type: text/html; charset=UTF-8

 

 

[root@ve1023:Active] config b pool Pool_Test_Sorry_Alfresco monitor all fake

 

 

[root@ve1023:Active] config b pool Pool_Test_Sorry_Alfresco|grep -i pool\ member

 

+-> POOL MEMBER Pool_Test_Sorry_Alfresco/200.200.200.101:80 inactive,down

 

 

[root@ve1023:Active] config curl -I http://172.28.19.79

 

HTTP/1.0 302 Found

 

Location: http://dev-sorry-webarch.xyz.com

 

Server: BigIP

 

Connection: Keep-Alive

 

Content-Length: 0

 

 

*******************************************************************************************************

 

 

How to use it in web console....?

How to use it in web console....?oh sorry i just noticed i forgot to post the irule.

when HTTP_REQUEST {
   if {[active_members [LB::server pool]] < 1} {
      HTTP::redirect "http://dev-sorry-webarch.xyz.com"
   }
}

to create irule, go to local traffic > irules > irule list, create and copy-and-paste the irule above.

to assign irule to virtual server, go to local traffic > virtual servers > virtual-server-name > resource (2nd tab) > irules, manages and enable the created irule.

hope this helps.

This is the rule I have..but I have to use HTTP_referrer in it..........., i would like to have as http_referrer (which is used for that : _http://en.wikipedia.org/wiki/HTTP_referer) wth the original DNS called

Nitass hi,

 

 

Given the irule:

 

rule myrule {

 

when HTTP_REQUEST {

 

set host [string tolower [HTTP::host]]

 

set newhost [string map {".acme.com.nz" ""} $host]

 

if {$host ne $newhost} {

 

HTTP::redirect "http://$newhost[HTTP::uri]"

 

}

 

}

 

 

using httpwatch, there's a response header that says HTTP/1.0 302 found

 

Location: http://

 

 

Can this maintain persistent session? Any traffic that goes into this iRule should have persistent session on the cache servers.

 

What can we put in?