Ok got it! many thanks! just had to give the id as an integer instead of a
name (118), and use srv_id 118
On Thu, Aug 11, 2011 at 1:45 PM, Ran S <r...@sheinberg.net> wrote:
> Many thanks for your help! it seems that this is the correct way, but I get
> a parsing error when checking the file in every possible syntax I could come
> up with
>
> frontend http-in
> bind 172.31.0.104:80
> default_backend test_servers
>
> backend test_servers
> server 118 172.31.0.118:85
> reqirep ^Host:\ 172.31.0.104 Host:\ 172.31.0.118 if {srv_id
> imp118}
> server 104 172.31.0.104:85
>
> Can you tell me the correct syntax?
>
> 2011/8/11 Hervé COMMOWICK <hcommow...@exosec.fr>
>
>> reqrep <yoursearch> <yourstring> if { srv_id <idofyourserver> }
>>
>> server's id can be forced with "id" keyword if needed
>>
>> Regards,
>>
>> Hervé.
>>
>> On Thu, 11 Aug 2011 13:22:36 +0300
>> Ran S <r...@sheinberg.net> wrote:
>>
>> > Well, I have no idea if this mailing list is active, as I have gotten
>> > no response, but I'll give it another try.
>> >
>> > I managed to change the Host header using ReqRep successfully.
>> >
>> > However, now I am in a state where one of the backends need this
>> > change, and the other one doesn't.
>> > How would I go about configuring this?
>> >
>> > If I put the two backends under one backend node, they both get the
>> > ReqRep parameter, and then one of the servers can't work with the
>> > replaced host header.
>> > If I put them in two backend nodes, how can I get the frontend node to
>> > balance between the two? this appears to be the correct way but I
>> > can't find the right command.
>> >
>> > Thanks
>> >
>> > On Wed, Aug 10, 2011 at 5:00 PM, Ran S <r...@sheinberg.net> wrote:
>> >
>> > > Hello all,
>> > >
>> > > I am trying to use HAProxy for the following configuration:
>> > > Two Linux servers (node1, node2) running apache (on port 85) and
>> > > squid and acting as Proxy servers to the Internet
>> > > I installed HAProxy on node1, and configured it to listen to port
>> > > 80, and have the backends in their respective apache port 85.
>> > >
>> > > While node1 is the only active server in the backend servers list,
>> > > I can make a request to node1:80 and it will be successfully
>> > > redirected to the apache port and returned to me.
>> > >
>> > > However while node2 is the only active backend server, this flow
>> > > will fail and I will simply get a blank page with HTTP 200.
>> > > I think I know why that is. when sniffing on node1, I can see the
>> > > following request flow:
>> > >
>> > > 1. My browser making web the request to node1:80
>> > > 2. Node1 making the request to node2.
>> > > But, this is where the problem comes in.
>> > > The source IP is node1
>> > > The Destination IP is node2
>> > > However the Host in this request is the node1 IP address
>> > >
>> > > So, since node2 backend server is actually a proxy server, it will
>> > > take the IP address from the Host header it received and make a
>> > > request to node1 (since it has it in the request's Host header) and
>> > > the failure will come in.
>> > >
>> > > So I guess what I'm asking is what would be the correct option to
>> > > use in HAproxy in order to have this set up the right way.
>> > >
>> > > I copied the configuration file from one of the examples and
>> > > trimmed it down to the very basic so I can eliminate anything
>> > > that's causing the problems, so here it is:
>> > >
>> > > * global*
>> > > * daemon*
>> > > * maxconn 256*
>> > > *
>> > > *
>> > > * defaults*
>> > > * mode http*
>> > > * timeout connect 5000ms*
>> > > * timeout client 50000ms*
>> > > * timeout server 50000ms*
>> > > * balance roundrobin*
>> > > * option forwardfor*
>> > > *
>> > > *
>> > > * frontend http-in*
>> > > * bind *:80*
>> > > * default_backend servers*
>> > > *
>> > > *
>> > > * backend servers*
>> > > * server <node1name> <node1ip>:85*
>> > >
>> > >
>> > > Many thanks in advance for any help! please let me know if you need
>> > > any more information.
>> > >
>> > > Thanks,
>> > > Ran
>> > >
>> > >
>> > >
>>
>>
>>
>> --
>> Hervé COMMOWICK, EXOSEC (http://www.exosec.fr/)
>> ZAC des Metz - 3 Rue du petit robinson - 78350 JOUY EN JOSAS
>> Tel: +33 1 30 67 60 65 - Fax: +33 1 75 43 40 70
>> mailto:hcommow...@exosec.fr
>>
>
>
