On Mon, May 30, 2022 at 11:58 PM Henning Svane <h...@energy.dk> wrote:
> Hi > > I have a strange problem. > > > > I have a HAProxy with 2 NICs > > NIC 1 VLAN 110 HAProxy have IP 10.40.152.10/28 > > NIC 2 VLAN 120 HAProxy have IP 10.40.252.10/28 is also the VLAN for > Exchange server IP 10.40.252.11/28 > > > > I have a outlook client in VLAN 100 10.40.2.1/24 > > I have 2 cases for testing: > > Case 1: VLAN 100 <-> FW <-> (NIC 1VLAN 110) HAProxy ( NIC 2 Exchange VLAN > 120) <-> Exchange Server > > Autodiscover.domain.com 10.40.152.10 > > Mail.doamin.com 10.40.152.10 > > Frontend: > > acl XMail hdr(host) -i mail. domain.com autodiscover. domain.com > domain.com > > acl XMail_Autodiscover url_beg -i /Autodiscover > > use_backend HA_DAG_XMail_Autodiscover if XMail > XMail_Autodiscover > > > > Backend HA_DAG_XMail_Autodiscover: > > server XMailDB01 XMailDB01.domain.com:443 maxconn 100 ssl ca-file > /etc/haproxy/crt/mail_domain_com.pem > > > > Case 2: VLAN 100 <-> FW <-> VLAN 120 Exchange Server > > Autodiscover.domain.com 10.40.252.11 > > Mail.doamin.com 10.40.252.11 > > > > Case 1 gives HTTP Error 401 and 500 > > Case 2 works as it should > > > > Case 1 > > I have tried with fiddler to find out what goes on but have not found out > why I get Error 401 and 500 > > I am capturing traffic from both NIC 1 and NIC 2 but I cannot relay find > out what is going on and how to see what is the problem. > > > > Hope somebody have an idear how to fix this. > > > > Regards > > Henning > Hi Henning, You can start HAProxyin debug mode and check what happens and also share generated log lines, they may contain useful information such as termination status code for the session. Baptiste
