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[solved] backend server nginx down HAProxy

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  • D
    dragoangel @wesleylc1
    last edited by dragoangel Sep 13, 2019, 9:13 PM Sep 13, 2019, 9:10 PM

    @wesleylc1 it will at least help you understand how it works. And latter you can configure second test backend with ssl. But in any case: redirects to subdomain, another protocol better be done on proxy, not on backend. And http2 is useless on backend - haproxy will use http1.1 when speaking with backend but will give h2 to end clients if you configure it on Frontend binding.

    Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
    Unifi AP-AC-LR with EAP RADIUS, US-24

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    • W
      wesleylc1 Rebel Alliance
      last edited by Sep 13, 2019, 9:14 PM

      @dragoangel As shown, my backend is already pointing to port 443 and selecting the SSL check box.

      ssl.png

      D 1 Reply Last reply Sep 13, 2019, 9:16 PM Reply Quote 0
      • D
        dragoangel @wesleylc1
        last edited by dragoangel Sep 13, 2019, 9:18 PM Sep 13, 2019, 9:16 PM

        @wesleylc1 Lol red line on ipv4 192.168.x.x, funny. Why cares, you mentioned public domain (https://nextcloud.projectus.com.br), but masked private ip? Ok. And what haproxy status you now see on backend ?

        Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
        Unifi AP-AC-LR with EAP RADIUS, US-24

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        • W
          wesleylc1 Rebel Alliance
          last edited by Sep 13, 2019, 9:20 PM

          @dragoangel lol lol 502 Bad Gateway

          Captura de tela de 2019-09-13 18-18-22.png
          Captura de tela de 2019-09-13 18-19-02.png

          D 1 Reply Last reply Sep 13, 2019, 9:24 PM Reply Quote 0
          • D
            dragoangel @wesleylc1
            last edited by Sep 13, 2019, 9:24 PM

            @wesleylc1 Why at bottom writed Ubuntu...? You go to haproxy or to nginx and see this?.. In any case: go to nginx straight and check you backend first. It eork? If yes - then fix your healthcheck. If it still not work add header host on backend config of haproxy in case you have in nginx multiple domains on same port-cert

            Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
            Unifi AP-AC-LR with EAP RADIUS, US-24

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            • W
              wesleylc1 Rebel Alliance
              last edited by wesleylc1 Sep 16, 2019, 2:57 PM Sep 16, 2019, 2:17 PM

              Hi guys, I set up https internally on the nginx server, already responding to https requests on nextcloud.projectus.com.br, now I'm trying to apply backend settings to my front end, which is already configured to use port 443, but my The backend displays the error "L7STS / 400 in 46ms".

              Captura de tela de 2019-09-16 11-15-04.png

              • front end settings
              frontend HA_Sistemas-https
              	bind			189.20.108.xx:443 name 189.20.108.xx:443   ssl crt-list /var/etc/haproxy/HA_Sistemas-https.crt_list  
              	bind			187.75.209.2xx:443 name 187.75.209.xx:443   ssl crt-list /var/etc/haproxy/HA_Sistemas-https.crt_list  
              	mode			http
              	log			global
              	option			log-separate-errors
              	option			httplog
              	option			http-keep-alive
              	timeout client		300000
              	acl			rootrequested	var(txn.txnpath) -m str -i /
              	acl			time-sheet	var(txn.txnhost) -m str -i time-sheet.projectus.com.br
              	acl			qsms	var(txn.txnhost) -m str -i qsms.projectus.com.br
              	acl			treinamento	var(txn.txnhost) -m str -i treinamento.projectus.com.br
              	acl			proposta	var(txn.txnhost) -m str -i proposta.projectus.com.br
              	acl			chamado	var(txn.txnhost) -m str -i chamado.projectus.com.br
              	acl			pesquisa	var(txn.txnhost) -m str -i pesquisa.projectus.com.br
              	acl			pesquisa-ce	var(txn.txnhost) -m str -i pesquisa-ce.projectus.com.br
              	acl			nextcloud	var(txn.txnhost) -m str -i nextcloud.projectus.com.br
              	http-request set-var(txn.txnpath) path
              	http-request set-var(txn.txnhost) hdr(host)
              	http-request redirect location /TimeSheet/faces/login.xhtml  if  rootrequested time-sheet 
              	http-request redirect location /SistemaQSMS/  if  rootrequested qsms 
              	http-request redirect location /Treinamento/  if  rootrequested treinamento 
              	http-request redirect location /Proposta/  if  rootrequested proposta 
              	http-request redirect location /Chamado/  if  rootrequested chamado 
              	http-request redirect location /PesquisaClima/  if  rootrequested pesquisa 
              	http-request redirect location /PesquisaClimaCE/  if  rootrequested pesquisa-ce 
              	http-response add-header Content-Security-Policy upgrade-insecure-requests  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce 
              	use_backend HA_Sistemas-45-xx_80-www_ipvANY  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce 
              	default_backend HA_Sistemas_40-xxx_443-nextcloud_ipvANY
              	default_backend HA_Sistemas_43-xxx_8443_ipvANY
              
              • backend settings
              backend HA_Sistemas_40-xxx_443-nextcloud_ipvANY
              	mode			http
              	id			109
              	log			global
              	timeout connect		30000
              	timeout server		30000
              	retries			3
              	option			httpchk OPTIONS / 
              	server			nextcloud 192.168.40.xxx:443 id 108 ssl check inter 1000  verify none 
              

              best regards,
              Wesley Santos

              D 1 Reply Last reply Sep 16, 2019, 5:30 PM Reply Quote 0
              • D
                dragoangel @wesleylc1
                last edited by Sep 16, 2019, 5:30 PM

                @wesleylc1 Try disable healthchecks for beginning

                Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                Unifi AP-AC-LR with EAP RADIUS, US-24

                W 1 Reply Last reply Sep 16, 2019, 5:34 PM Reply Quote 0
                • W
                  wesleylc1 Rebel Alliance @dragoangel
                  last edited by wesleylc1 Sep 16, 2019, 5:37 PM Sep 16, 2019, 5:34 PM

                  @dragoangel How do I disable health checks?

                  Would it be as in the picture?
                  Captura de tela de 2019-09-16 14-36-23.png

                  Captura de tela de 2019-09-16 14-36-47.png

                  D 1 Reply Last reply Sep 16, 2019, 5:43 PM Reply Quote 0
                  • D
                    dragoangel @wesleylc1
                    last edited by Sep 16, 2019, 5:43 PM

                    @wesleylc1 yes. That it. Try opening you frontend domain

                    Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                    Unifi AP-AC-LR with EAP RADIUS, US-24

                    W 1 Reply Last reply Sep 16, 2019, 5:45 PM Reply Quote 0
                    • W
                      wesleylc1 Rebel Alliance @dragoangel
                      last edited by Sep 16, 2019, 5:45 PM

                      @dragoangel No external access yet.

                      D 1 Reply Last reply Sep 16, 2019, 5:54 PM Reply Quote 0
                      • D
                        dragoangel @wesleylc1
                        last edited by Sep 16, 2019, 5:54 PM

                        @wesleylc1 No big matter, open internal haproxy address. Align your pc /etc/hosts file to resolve domain for test, or use unbound for point to internal ip, or etc

                        Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                        Unifi AP-AC-LR with EAP RADIUS, US-24

                        W 1 Reply Last reply Sep 16, 2019, 6:05 PM Reply Quote 0
                        • W
                          wesleylc1 Rebel Alliance @dragoangel
                          last edited by Sep 16, 2019, 6:05 PM

                          @dragoangel internally it is accessible to the web page through the https protocol.

                          Captura de tela de 2019-09-16 14-58-32.png

                          I even set the line below on my network gateway.

                          Captura de tela de 2019-09-16 15-04-06.png

                          best regards,
                          Wesley Santos

                          D 1 Reply Last reply Sep 16, 2019, 6:10 PM Reply Quote 0
                          • D
                            dragoangel @wesleylc1
                            last edited by dragoangel Sep 16, 2019, 6:10 PM Sep 16, 2019, 6:10 PM

                            @wesleylc1 You accessing nginx or haproxy now? Print nslookup domain.com output plz

                            Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                            Unifi AP-AC-LR with EAP RADIUS, US-24

                            1 Reply Last reply Reply Quote 0
                            • W
                              wesleylc1 Rebel Alliance
                              last edited by Sep 16, 2019, 6:29 PM

                              @dragoangel This access is being made from my LAN subnet, below the nslookup output.

                              nslookup nextcloud.projectus.com.br
                              Server:		192.168.45.11
                              Address:	192.168.45.11#53
                              
                              Non-authoritative answer:
                              Name:	nextcloud.projectus.com.br
                              Address: 189.20.108.xx
                              

                              best regards,
                              Wesley Santos

                              1 Reply Last reply Reply Quote 0
                              • D
                                dragoangel
                                last edited by Sep 16, 2019, 6:54 PM

                                hm... you said that you access it locally, but domain resolving goes to public IP

                                Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                                Unifi AP-AC-LR with EAP RADIUS, US-24

                                W 1 Reply Last reply Sep 16, 2019, 7:01 PM Reply Quote 0
                                • W
                                  wesleylc1 Rebel Alliance @dragoangel
                                  last edited by Sep 16, 2019, 7:01 PM

                                  The resolution is pointing to the public IP, because my DNS provider is external.

                                  1 Reply Last reply Reply Quote 0
                                  • D
                                    dragoangel
                                    last edited by Sep 16, 2019, 7:01 PM

                                    @dragoangel said in backend server nginx down HAProxy:

                                    You accessing nginx or haproxy now

                                    You accessing nginx or haproxy now??

                                    Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                                    Unifi AP-AC-LR with EAP RADIUS, US-24

                                    W 1 Reply Last reply Sep 16, 2019, 7:10 PM Reply Quote 0
                                    • W
                                      wesleylc1 Rebel Alliance @dragoangel
                                      last edited by Sep 16, 2019, 7:10 PM

                                      I do not understand, can you explain again?

                                      1 Reply Last reply Reply Quote 0
                                      • D
                                        dragoangel
                                        last edited by dragoangel Sep 16, 2019, 7:13 PM Sep 16, 2019, 7:12 PM

                                        🙄 facepalm.

                                        @wesleylc1 said in backend server nginx down HAProxy:

                                        @dragoangel internally it is accessible to the web page through the https protocol.

                                        You opened connection to NGINX or HAproxy?? Try change healthchecks to GET /

                                        Latest stable pfSense on 2x XG-7100 and 1x Intel Xeon Server, running mutiWAN, he.net IPv6, pfBlockerNG-devel, HAProxy-devel, Syslog-ng, Zabbix-agent, OpenVPN, IPsec site-to-site, DNS-over-TLS...
                                        Unifi AP-AC-LR with EAP RADIUS, US-24

                                        W 1 Reply Last reply Sep 16, 2019, 7:24 PM Reply Quote 0
                                        • W
                                          wesleylc1 Rebel Alliance @dragoangel
                                          last edited by wesleylc1 Sep 16, 2019, 7:31 PM Sep 16, 2019, 7:24 PM

                                          @dragoangel My problem may be that my front end already uses another default backend?

                                          I had already made changes from OPTIONS to GET and HEAD, for example, using https there was no success, already using http went well.

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