Messages

Thanks, I updated my frontend config:

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# Frontend: 0_SNI_frontend ()
frontend 0_SNI_frontend
    bind 0.0.0.0:443 name 0.0.0.0:443
    bind 0.0.0.0:80 name 0.0.0.0:80
    mode tcp
    default_backend SSL_backend
    # tuning options
    timeout client 30s

    # logging options
    # ACL: SSL_hello
    acl acl_632625326b34a3.00256787 req_ssl_hello_type 1

    # ACTION: Openvpn_map-rule
    use_backend OPENVPN_backend if acl_632625326b34a3.00256787
    # ACTION: tcp_request_inspect_delay
    # NOTE: actions with no ACLs/conditions will always match
    tcp-request inspect-delay 5s
    # ACTION: tcp_request_content_accept_ssl
    # NOTE: actions with no ACLs/conditions will always match
    tcp-request content accept if !{ req_ssl_hello_type 1 }



I think it matches your example but I still get errors in the haproxy log:

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2022-09-23T14:52:32 Informational haproxy 1.2.3.4:42250 [23/Sep/2022:14:52:32.904] 1_HTTPS_frontend/127.4.4.3:443: SSL handshake failure
2022-09-23T14:52:32 Informational haproxy Connect from 1.2.3.4:42250 to 4.3.2.1:443 (0_SNI_frontend/TCP)
2022-09-23T14:52:31 Informational haproxy Connect from 192.168.254.13:52460 to 192.168.254.1:443 (0_SNI_frontend/TCP)


I looked a bit further and now I do see entries appearing in the OpenVPN logs so I will check those out first.

I followed the tutorial and added the necessary config to enable OpenVPN on port 443 but somehow it always keeps sending everything to the SSL_Backend.

My config file:

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#
# Automatically generated configuration.
# Do not edit this file manually.
#

global
    uid                         80
    gid                         80
    chroot                      /var/haproxy
    daemon
    stats                       socket /var/run/haproxy.socket group proxy mode 775 level admin
    nbproc                      1
    nbthread                    2
    hard-stop-after             60s
    no strict-limits
    tune.ssl.default-dh-param   4096
    spread-checks               2
    tune.bufsize                16384
    tune.lua.maxmem             0
    log                         /var/run/log local0 info
    lua-prepend-path            /tmp/haproxy/lua/?.lua

defaults
    log     global
    option redispatch -1
    timeout client 30s
    timeout connect 30s
    timeout server 30s
    retries 3
    default-server init-addr last,libc

# autogenerated entries for ACLs


# autogenerated entries for config in backends/frontends

# autogenerated entries for stats




# Frontend: 0_SNI_frontend ()
frontend 0_SNI_frontend
    bind 0.0.0.0:443 name 0.0.0.0:443
    bind 0.0.0.0:80 name 0.0.0.0:80
    mode tcp
    default_backend SSL_backend
    # tuning options
    timeout client 30s

    # logging options
    # ACL: SSL_hello
    acl acl_632625326b34a3.00256787 req_ssl_hello_type 1

    # ACTION: tcp_request_inspect_delay
    # NOTE: actions with no ACLs/conditions will always match
    tcp-request inspect-delay 5s
    # ACTION: tcp_request_content_accept_ssl
    tcp-request content accept if acl_632625326b34a3.00256787
    # ACTION: Openvpn_map-rule
    use_backend %[req.hdr(host),lower,map_dom(/tmp/haproxy/mapfiles/6329deb37cfb97.45093681.txt)] if acl_632625326b34a3.00256787

# Frontend: 1_HTTP_frontend ()
frontend 1_HTTP_frontend
    bind 127.4.4.3:80 name 127.4.4.3:80 accept-proxy
    mode http
    option http-keep-alive
    option forwardfor
    # tuning options
    timeout client 30s

    # logging options
    # ACL: NoSSL_condition
    acl acl_632463bc8a4e03.38927091 ssl_fc

    # ACTION: HTTPtoHTTPS_rule
    http-request redirect scheme https code 301 if !acl_632463bc8a4e03.38927091

# Frontend: 1_HTTPS_frontend ()
frontend 1_HTTPS_frontend
    http-response set-header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload"
    bind 127.4.4.3:443 name 127.4.4.3:443 accept-proxy ssl no-sslv3 no-tlsv10 no-tlsv11 no-tls-tickets ciphers ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256 ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256 crt-list /tmp/haproxy/ssl/632498ac5e6503.54058036.certlist
    mode http
    option http-keep-alive
    option forwardfor
    # tuning options
    timeout client 30s

    # logging options

    # ACTION: PUBLIC_SUBDOMAINS_map-rule
    # NOTE: actions with no ACLs/conditions will always match
    use_backend %[req.hdr(host),lower,map_dom(/tmp/haproxy/mapfiles/6324642dba2f56.47189800.txt)]

# Backend: wiki ()
backend wiki
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server apache03 192.168.254.4:80

# Backend: SSL_backend ()
backend SSL_backend
    # health checking is DISABLED
    mode tcp
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    server SSL_Server 127.4.4.3 send-proxy-v2 check-send-proxy

# Backend: Zoneminder_backend ()
backend Zoneminder_backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server ZoneMinder 192.168.254.22:80 source 192.168.254.2

# Backend: Nextcloud_Backend ()
backend Nextcloud_Backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server owncloud 192.168.254.23:443 ssl verify none

# Backend: KH_backend ()
backend KH_backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server kh 192.168.10.50:80

# Backend: HA_backend ()
backend HA_backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server ha 192.168.0.51:80

# Backend: HASS_backend ()
backend HASS_backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server hass 192.168.254.13:8123

# Backend: BITWARDEN_backend ()
backend BITWARDEN_backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server bitwarden 192.168.254.4:81

# Backend: Webmin_Backend ()
backend Webmin_Backend
    # health checking is DISABLED
    mode http
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    http-reuse safe
    server sshgateway 192.168.254.34:10000 ssl verify none

# Backend: OPENVPN_backend ()
backend OPENVPN_backend
    # health checking is DISABLED
    mode tcp
    balance source
    # stickiness
    stick-table type ip size 50k expire 30m 
    stick on src
    # tuning options
    timeout connect 30s
    timeout server 30s
    server OPENVPN_server 127.4.4.3:10194


When I try to connect to the OpenVPN server on port 443 I get this in the haproxy logs:

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2022-09-23T13:16:23 Informational haproxy 1.2.3.4:43265 [23/Sep/2022:13:16:23.981] 1_HTTPS_frontend/127.4.4.3:443: SSL handshake failure
2022-09-23T13:16:23 Informational haproxy Connect from 1.2.3.4:43265 to 4.3.2.1:443 (0_SNI_frontend/TCP)
2022-09-23T13:16:19 Informational haproxy 1.2.3.4:43264 [23/Sep/2022:13:16:19.866] 1_HTTPS_frontend/127.4.4.3:443: SSL handshake failure
2022-09-23T13:16:19 Informational haproxy Connect from 1.2.3.4:43264 to 4.3.2.1:443 (0_SNI_frontend/TCP)


Any ideas?