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prasad_385282's avatar
prasad_385282
Icon for Nimbostratus rankNimbostratus
Apr 30, 2019

vip redirecting to pool member fqdn

I have a vip configured on port 80 and attached pool with a pool member listening on port 8000. when i do http;//vip fqdn then it is redirecting to pool member http;//poolmember fqdn on 8000

 

But i want no redirects from vip to pool member. I want the application to be used by vip name

 

current vip config:

 

ltm virtual vs_testngf { description vs_testngf destination 10.105.120.x:http ip-protocol tcp mask 255.255.255.255 pool pool_testngf profiles { http { } tcp { } } source 0.0.0.0/0 source-address-translation { type automap } translate-address enabled translate-port enabled vs-index 583 } Backend pool has tcp monitor, RR LB and single member on port 8000

 

what are my options to make application be browsed by single vip url

 

application delivery
BIG-IP
LTM

1 Reply

  • youssef1's avatar
    youssef1
    Icon for Cumulonimbus rankCumulonimbus
    May 01, 2019

    Hi, I so firs of try this irule:

    replace:

    • poolmember_fqdn1 by real hostname (fqdn) of your pool member
    • poolmember_fqdn2 by real hostname (fqdn) of your pool member

    Irule:

    when HTTP_REQUEST {
   save hostname for use in response
  set vip_fqdn [HTTP::host]
}

when HTTP_RESPONSE {
     Rewrite the Location header for redirects 
    if { [HTTP::header exists Location] }{ 
        HTTP::header replace Location [string map {"http://poolmember_fqdn1:8010" "http://$vip_fqdn" "http://poolmember_fqdn2:8010" "http://$vip_fqdn"} [HTTP::header Location]] 
    }
}

    Then if you backend app is developped with absolute link without Relativ you can use this irule:

    when HTTP_REQUEST {
     Disable the stream filter for requests
    STREAM::disable

     Remove this header to prevent server from compression response
    HTTP::header remove Accept-Encoding

     save hostname for use in response
    set vip_fqdn [HTTP::host]
}
when HTTP_RESPONSE {
     Rewrite the Location header for redirects 
    if { [HTTP::header exists Location] }{
        HTTP::header replace Location [string map {"http://poolmember_fqdn1:8010" "http://$vip_fqdn" "http://poolmember_fqdn2:8010" "http://$vip_fqdn"} [HTTP::header Location]] 
    }   

     Rewrite the response content using a stream profile if it is text 
    if { [HTTP::header Content-Type] contains "text" } {

         Set the stream expression with the find/replace strings 
        STREAM::expression "@poolmember_fqdn:8010@vip_fqdn@" 

         Enable the stream filter 
        STREAM::enable 
    }
}