Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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ljk8254's avatar
ljk8254
Icon for Nimbostratus rankNimbostratus
Nov 23, 2011

url uri redirection or rewrite

Hi iRules gurus,     I am a very new for iRules...but I have to implement and solve an internal request.   Unfortunately, I do not have much knowledges regarding the iRules.     What I ...
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nitass's avatar
nitass
Icon for Employee rankEmployee
Nov 23, 2011
not sure if i understand correctly or not. this is an example. i used http instead of https because it is a bit easier to display http header. 

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}
[root@ve1023:Active] config  b pool foo list
pool foo {
   members {
      200.200.200.101:80 {}
      200.200.200.102:80 {}
   }
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
        if {[string tolower [HTTP::host]] equals "aaa.com"}{
                if {[string tolower [HTTP::uri]] starts_with "/testing"}{
                        HTTP::uri "/go[HTTP::uri]"
                }
        }
}

when HTTP_REQUEST_SEND {
        clientside {
                HTTP::header replace Host [class match -value [LB::server addr] equals ip_to_host]
        }
}
}
[root@ve1023:Active] config  b class ip_to_host list
class ip_to_host {
   {
      "200.200.200.101" { "bbb.com" }
      "200.200.200.102" { "ccc.com" }
   }
}

1

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.253(45217) <-> 172.28.19.79(80)
1322052891.8574 (0.0022)  C>S
---------------------------------------------------------------
HEAD /testing/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: aaa.com
Accept: */*
---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(45217) <-> 200.200.200.101(80)
1322052891.8582 (0.0007)  C>S
---------------------------------------------------------------
HEAD /go/testing/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: bbb.com
Accept: */*
---------------------------------------------------------------

2

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.253(45219) <-> 172.28.19.79(80)
1322052913.8332 (0.0021)  C>S
---------------------------------------------------------------
HEAD /testing/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: aaa.com
Accept: */*
---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(45219) <-> 200.200.200.102(80)
1322052913.8344 (0.0011)  C>S
---------------------------------------------------------------
HEAD /go/testing/abc HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: ccc.com
Accept: */*
---------------------------------------------------------------