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Troca de tempo limite do gateway HAProxy 504 2016

tag-icon • tag-icon exchange load-balancing reverse-proxy haproxy exchange-2016
Troca de tempo limite do gateway HAProxy 504 2016

Tenho tentado usar o HAProxy como proxy e balanceador de carga para meus 2 servidores de e-mail do Exchange 2016. Sempre que acerto o IP do servidor HAProxy, recebo um erro "504 Gateway Time-out". Eu tentei mudar a configuração, mas não funcionou. Aqui está a configuração que estou usando agora:

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

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

    # Default ciphers to use on SSL-enabled listening sockets.
    # For more information, see ciphers(1SSL). This list is from:
    #  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
    ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
    ssl-default-bind-options no-sslv3

defaults
    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

#---------------------------------------------------------------------
# Stripped down config
#---------------------------------------------------------------------

frontend exchange
    bind *:80
    default_backend exchange_servers

backend exchange_servers
    balance roundrobin
    server EXCHANGE1 192.168.80.140:443 check
    server EXCHANGE2 192.168.80.141:443 check

Aqui está a página de estatísticas do Haproxy: Página de estatísticas do Haproxy:

Responder1

O erro foi que ele precisava ser configurado para "mode tcp" para configurá-lo para um proxy L4 em vez de um proxy L7. Aqui está a configuração de trabalho atualizada:

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

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

    # Default ciphers to use on SSL-enabled listening sockets.
    # For more information, see ciphers(1SSL). This list is from:
    #  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
    ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS
    ssl-default-bind-options no-sslv3

defaults
    log global
    mode    http
    option  httplog
    option  dontlognull
    option  forwardfor
    option  redispatch
#   option  contstats
    retries  3
        timeout connect 5000
        timeout client  15m
        timeout server  15m
    timeout http-request 10s
    timeout queue 1m
    timeout http-keep-alive 10s
    timeout check 10s
    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

listen stats 
    bind :1936
    mode http
    stats enable
    stats hide-version
    stats realm Haproxy\ Statistics
    stats uri /haproxy_stats
    stats auth Username:Password

#---------------------------------------------------------------------
# Stripped down config
#---------------------------------------------------------------------

frontend exchange
    bind *:80
    bind *:443
    mode tcp
    default_backend exchange_servers

backend exchange_servers
    mode tcp
    balance roundrobin
    server EXCHANGE1 192.168.80.140:443 check
    server EXCHANGE2 192.168.80.141:443 check

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