Hi Baptiste,

So you do layer 7 mode http?ould you be able to give me a copy of the confit 
whichever irks for you?

I'm happy to give that a shot tonight, Australia time... And I'll get back to 
you.

In terms of netscaler, I have a clustered pair that I created a virtual server 
on in tcp mode, balancing port 443 to the NLB IP of the CAS servers - it's 
doing essentially the same thing as the haproxy server is supposed to be 
doing...

Ta,
Leo

Sent from my iPad

> On 20 Sep 2013, at 3:35 pm, Baptiste <[email protected]> wrote:
> 
> Hi Leo,
> 
> I have a lab with a slightly different configuration than yours.
> In my lab, HAProxy decipher the traffic, log everything then recipher
> the traffic to the server. Like a man in the middle.
> I have a round robin algorithm + no session persistence + option
> http-server-close.
> 
> I ran the same test as yours.
> 
> From my lab platform, I can see those URLs requested, in front the
> server that was used:
> exch1: "POST 
> /ecp/DDI/DDIService.svc/SetObject?schema=PasswordService&msExchEcpCanary=<SOME
> BLAH BLAH HERE> HTTP/1.1"
> exch2: "GET /ecp/PersonalSettings/logoff.aspx?src=exch HTTP/1.1"
> exch1: "GET /owa/logoff.owa HTTP/1.1"
> exch2: "GET 
> /owa/auth/logon.aspx?url=https%3a%2f%2fmail.2013.haproxylab.net%2fowa%2flogoff.owa&reason=0
> HTTP/1.1"
> 
> so sounds normal I'm logged out after a password update: application design.
> 
> That said, your configuration should not produce this effect, since
> all your requests are routed to a single server.
> An other point: my password has been changed, but now I can't change
> it anymore due to a password policy issue (whatever I type in, it says
> my password is too weak)...
> 
> I'll investigate on this in my platform and keep you updated.
> 
> Can you tell us exactly how your netscaller is configured and works
> with exchange 2013?
> 
> Baptiste
> 
> 
>> On Fri, Sep 20, 2013 at 3:56 AM, Leo Raikhman <[email protected]> wrote:
>> Hi all,
>> 
>> I have haproxy 1.5dev19 running in TCP mode in front of my Exchange 2013 CAS
>> servers. My config is appended.
>> 
>> It seems that haproxy can't handle the outlook web access redirect. When I
>> log into OWA 2013, internally, and externally, everything is fine.
>> 
>> When I click on the "Options" or "Change Password" item on the OWA menu the
>> URL changes from https://email.company.com/owa to
>> https://email.company.com/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2femail.company.com%2fecp%2f%3frfr%3dowa%26owaparam%3dmodurl%253D0%26p%3daccount
>> and drops me into the Exchange 2013 login page again, except I can't login.
>> 
>> This does not happen internally, or when I load balance the CAS servers
>> behind a Citrix NetScaler. Is there something I'm missing? Does haproxy have
>> a character limit on URLs in TCP mode? Can it not decode the URL encoding of
>> those characters?
>> 
>> Please help...
>> 
>> Config:
>> 
>> defaults
>>  option  dontlognull
>>  option  redispatch
>>  option  contstats
>>  retries 3
>>  timeout connect 5s
>>  timeout http-keep-alive 1s
>>  timeout http-request 15s
>>  timeout queue 30s
>>  timeout tarpit 1m
>>  backlog 10000
>> 
>>  balance roundrobin
>>  mode tcp
>>  option tcplog
>>  log global
>>  timeout client 300s
>>  timeout server 300s
>>  default-server inter 3s rise 2 fall 3
>> 
>> frontend ft_exchange_tcp
>>  bind 10.0.0.9:443 name https
>>  maxconn 10000
>>  default_backend bk_exchange_tcp
>> 
>> backend bk_exchange_tcp
>>  stick-table type ip size 10240k expire 60m
>>  stick on src
>>  option redispatch
>>  option abortonclose
>>  balance leastconn
>>  server cas1 10.0.0.15:443 maxconn 10000 check
>>  server cas2 10.0.0.16:443 maxconn 10000 check
>> 
>> --
>> Leo Raikhman
>> VMware ESX/Storage Consultant
>> Ph: 0404943618
>> Email: [email protected]

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