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I own one domain like xyz.com and I'm trying to redirect subdomain other ip with haproxy.

I use tomcat on the servers and I use haproxy to redirect incoming requests on port 80 to port 8080.


www.xyz.com ->

www.xyz.com/abc ->
  or  abc.xyz.com ->

In order to do this redirection, how do I set haproxy?

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I don't know why you got downvoted 3 times and without any comment. This is not a very good stackexchange etiquette! Sorry for this bad welcome. –  Stefano Jan 23 '12 at 10:42
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2 Answers

In haproxy you do redirection combining acl rules and redirect ones; you choose the right server using the backend rule.

The official haproxy documentation is not very easy to read, but it's very complete.

Something like this (just a sketch to give you an idea):

frontend http-in
    mode              http
    bind              FRONTENDIP:80 # eg.

    default_backend   tomcat_server_2

    acl tomcat_1      hdr_end(host) -i www.xyz.com
    acl tomcat_2      hdr_end(host) -i abc.xyz.com
    acl tomcat_path   path_beg /abc/

    use_backend       tomcat_server_1 if tomcat_1 !tomcat_path

backend tomcat_server_1
    server tomcat1 maxconn 1000

backend tomcat_server_1
    server tomcat2 maxconn 1000

If you want to redirect www.xyz.com/abc/ to abc.xyz.com :

    redirect prefix   http://abc.xyz.com if tomcat_path
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Haproxy is neither meant to redirect names nor to redirect URIs.

Names are directed by name servers (DNS).

URIs are redirected by (modules of) a webserver (HTTP).

Haproxy is to balance traffic (TCP/IP) between two (or more) identical servers.

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haproxy can very well redirect both prefixes (subdomain/domain/etc.) and urls. Search for redirect location and redirect prefix in haproxy.1wt.eu/download/1.4/doc/configuration.txt –  Stefano Jan 23 '12 at 10:41
You 're wrong, Haproxy is both a load balancer and a reverse proxy server. –  jmoreira yesterday
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