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[solved] backend server nginx down HAProxy

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  • 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.

                              1 Reply Last reply Reply Quote 0
                              • D
                                dragoangel
                                last edited by Sep 16, 2019, 7:35 PM

                                you musn't use "default backend". This bad practice. All time use only ACLs to assign 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

                                1 Reply Last reply Reply Quote 0
                                • W
                                  wesleylc1 Rebel Alliance
                                  last edited by Sep 16, 2019, 7:50 PM

                                  I use a default backend for https systems and assign to these sites through acls.

                                  1 Reply Last reply Reply Quote 0
                                  • W
                                    wesleylc1 Rebel Alliance
                                    last edited by Sep 17, 2019, 3:00 PM

                                    @dragoangel @PiBa Hi guys !!
                                    I deleted entries 443 from this backend and made new settings using 80, the image below the backend communicates successfully.

                                    Captura de tela de 2019-09-17 11-48-51.png

                                    I really need to publish this site, I will be very grateful if you help me.

                                    best regards,
                                    Wesley Santos

                                    1 Reply Last reply Reply Quote 0
                                    • W
                                      wesleylc1 Rebel Alliance
                                      last edited by Sep 19, 2019, 11:59 AM

                                      The supplemental information, after applying the changes below to the backend, is now in active status, but the ACL still does not point to the correct page.
                                      001.png

                                      • backend status:
                                        002.png

                                      I am using this documentation as a reference.

                                      https://serverfault.com/questions/664332/haproxy-returns-bad-request-invalid-host-for-seemingly-no-reason

                                      P 1 Reply Last reply Sep 19, 2019, 3:38 PM Reply Quote 0
                                      • P
                                        PiBa @wesleylc1
                                        last edited by Sep 19, 2019, 3:38 PM

                                        @wesleylc1
                                        Is this what your current config looks like?:

                                        	use_backend HA_Sistemas-45-xx_80-www_ipvANY  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce 
                                        	use_backend HA_Sistemas_40-xx_443-nextcloud_ipvANY  if  !nextcloud 
                                        	default_backend HA_Sistemas_43-xx_8443_ipvANY
                                        

                                        If so then the logic seems to be wrong. Keep in mind that the first matching 'use_backend' is used.

                                        A client visiting nextcloud would match the first use_backend line that says it should not be timesheet/qsms/treinamento/.. which would evaluate to 'true'.. As such the client will be send to that 1st www backend.

                                        You might want to have that one also exclude the !nextcloud.. and DO allow usage of the nextcloud backend when the nextcloud is requested.. so that should be without the ! sign.

                                        1 Reply Last reply Reply Quote 0
                                        • W
                                          wesleylc1 Rebel Alliance
                                          last edited by wesleylc1 Sep 19, 2019, 4:46 PM Sep 19, 2019, 4:36 PM

                                          @PiBa

                                          Current configuration looks like this:

                                          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.xxx:443 name 187.75.209.xxx: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			nxc	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 !nxc 
                                          	use_backend HA_Sistemas-45-14_80-www_ipvANY  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce 
                                          	use_backend HA_Sistemas_40-245_443-nxc_ipvANY  if  !nxc 
                                          	default_backend HA_Sistemas_43-235_8443_ipvANY
                                          

                                          I tried applying the settings as reported in your last message, but still have trouble redirecting to https://nextcloud.projectus.com

                                          P 1 Reply Last reply Sep 19, 2019, 4:59 PM Reply Quote 0
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