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    [solved] backend server nginx down HAProxy

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    • W
      wesleylc1 Rebel Alliance
      last edited by

      @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

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      • dragoangelD
        dragoangel
        last edited by

        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 Reply Quote 0
        • W
          wesleylc1 Rebel Alliance @dragoangel
          last edited by

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

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          • dragoangelD
            dragoangel
            last edited by

            @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 Reply Quote 0
            • W
              wesleylc1 Rebel Alliance @dragoangel
              last edited by

              I do not understand, can you explain again?

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              • dragoangelD
                dragoangel
                last edited by dragoangel

                🙄 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 Reply Quote 0
                • W
                  wesleylc1 Rebel Alliance @dragoangel
                  last edited by wesleylc1

                  @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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                  • dragoangelD
                    dragoangel
                    last edited by

                    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

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                    • W
                      wesleylc1 Rebel Alliance
                      last edited by

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

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                      • W
                        wesleylc1 Rebel Alliance
                        last edited by

                        @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

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                        • W
                          wesleylc1 Rebel Alliance
                          last edited by

                          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

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                          • P
                            PiBa @wesleylc1
                            last edited by

                            @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.

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                            • W
                              wesleylc1 Rebel Alliance
                              last edited by wesleylc1

                              @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

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                              • P
                                PiBa @wesleylc1
                                last edited by

                                @wesleylc1
                                The settings in my message are exactly what you posted just to ask confirmation if that is what you currently had active. The settings are wrong indeed.

                                Try making them like this:

                                	use_backend HA_Sistemas-45-14_80-www_ipvANY  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce !nxc
                                	use_backend HA_Sistemas_40-245_443-nxc_ipvANY  if nxc 
                                	default_backend HA_Sistemas_43-235_8443_ipvANY
                                
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                                • W
                                  wesleylc1 Rebel Alliance
                                  last edited by wesleylc1

                                  @PiBa I set up according to your last message, but the problem persists, continuing to direct nextcloud.projectus.com.br to the main site of the company.

                                  
                                  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-request redirect location /login  if  rootrequested nxc 
                                  	http-response add-header Content-Security-Policy upgrade-insecure-requests  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce 
                                  	use_backend HA_Sistemas-45-14_80-www_ipvANY  if  !time-sheet !qsms !treinamento !proposta !chamado !pesquisa !pesquisa-ce !nxc 
                                  	use_backend HA_Sistemas_40-245_443-nxc_ipvANY  if  nxc 
                                  	default_backend HA_Sistemas_43-235_8443_ipvANY
                                  

                                  company website projectus.com.br
                                  projectus.png

                                  site "nextcloud" nextcloud.projectus.com.br

                                  nextcloud.png

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                                  • P
                                    PiBa @wesleylc1
                                    last edited by

                                    @wesleylc1
                                    Seems to me that https://nextcloud.projectus.com.br/ is working just fine..? Can you confirm that?

                                    Perhaps you have another frontend that is listening on :80 that is sending a wrong redirect?

                                    W 1 Reply Last reply Reply Quote 0
                                    • W
                                      wesleylc1 Rebel Alliance @PiBa
                                      last edited by wesleylc1

                                      @PiBa redirection occurs, but leading to the wrong page, I have another frontend that responds to requests on port: 80.
                                      Port Front End Settings: 80

                                      frontend HA_Sistemas-http
                                      	bind			189.20.108.xx:80 name 189.20.108.xx:80   
                                      	bind			187.75.209.xxx:80 name 187.75.209.xxx:80   
                                      	mode			http
                                      	log			global
                                      	option			log-separate-errors
                                      	option			httplog
                                      	option			http-keep-alive
                                      	timeout client		30000
                                      	acl			projectus	var(txn.txnhost) -m str -i projectus.com.br
                                      	acl			projectus	var(txn.txnhost) -m str -i www.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i time-sheet.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i treinamento-qsms.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i qsms.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i proposta.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i treinamento.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i chamado.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i  pesquisa.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i pesquisa-ce.projectus.com.br
                                      	acl			cadcae	var(txn.txnhost) -m str -i www.cadcae.projectus.com.br
                                      	acl			cadcae	var(txn.txnhost) -m str -i cadcae.projectus.com.br
                                      	acl			rh	var(txn.txnhost) -m str -i rh.projectus.com.br
                                      	http-request set-var(txn.txnhost) hdr(host)
                                      	http-request redirect scheme https  if  redirect-to-SSL 
                                      	http-request redirect location http://www.projectus.com.br  if  !projectus !cadcae !rh 
                                      	use_backend HA_Sistemas-45-14_80-www_ipvANY  if  projectus 
                                      	use_backend HA_Sistemas_43-70_80-ged_ipvANY  if  cadcae 
                                      	use_backend HA_Sistemas_42-226_80-rh_ipvANY  if  rh 
                                      
                                      • It worked after creating the "nextcloud.projectus.com.br" ACL
                                      	acl			projectus	var(txn.txnhost) -m str -i projectus.com.br
                                      	acl			projectus	var(txn.txnhost) -m str -i www.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i time-sheet.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i treinamento-qsms.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i qsms.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i proposta.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i treinamento.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i chamado.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i  pesquisa.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i pesquisa-ce.projectus.com.br
                                      	acl			redirect-to-SSL	var(txn.txnhost) -m str -i nextcloud.projectus.com.br
                                      	acl			cadcae	var(txn.txnhost) -m str -i www.cadcae.projectus.com.br
                                      	acl			cadcae	var(txn.txnhost) -m str -i cadcae.projectus.com.br
                                      	acl			rh	var(txn.txnhost) -m str -i rh.projectus.com.br
                                      
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                                      • W
                                        wesleylc1 Rebel Alliance
                                        last edited by wesleylc1

                                        @PiBa can you explain to me, why the backen only focused up after using the setting "HTTP / 1.1 \ r \ nHost: \ nextcloud.projectus.com.br"?

                                        Captura de tela de 2019-09-19 16-37-12.png

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                                        • P
                                          PiBa @wesleylc1
                                          last edited by

                                          @wesleylc1
                                          Can you tell me why your nginx configuration requires the host header to be send in requests?

                                          W 2 Replies Last reply Reply Quote 0
                                          • W
                                            wesleylc1 Rebel Alliance @PiBa
                                            last edited by

                                            @PiBa I really don't know why ngix requires the header to be sent on requests; I followed an Internet totorial to deploy "nextcloud" using nginx. Can you open the link to try to help me understand?

                                            How to Install NextCloud on Ubuntu 18.04 with Nginx (LEMP Stack)

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