HTTP loadbalencer + IIS 10 NTLM

I guys,
I a new in HAProxy, and that is something that i’m trying to learn :slight_smile: . I already setup a load balencer on some web internal websites and everything runs fine. Now we are trying to set a load balancer to a site with NTLM autentication, and we only get 401 error…


log /dev/log local0 debug
log /dev/log local1 debug
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin
stats timeout 30s
user haproxy
group haproxy

    # Default SSL material locations
    ca-base /etc/ssl/certs
    crt-base /etc/ssl/private

    # See:
    ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
    ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets

log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http

frontend sctest_LB
mode http
bind *:80
option http-keep-alive
#option prefer-last-server
default_backend sctest_LB_Back

backend sctest_LB_Back
balance source
hash-type consistent
option http-keep-alive
option prefer-last-server
server ha01 srv01:80 check maxconn 3000
server ha02 srv02:80 check maxconn 3000

all the help will be appreciated