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  1. Cloudron Forum
  2. Nextcloud
  3. Nextcloud OIDC integration

Nextcloud OIDC integration

Scheduled Pinned Locked Moved Nextcloud
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  • andreasduerenA andreasdueren

    Just checked the logs (they are absolutely full):

    LocalServerException
    Host "127.0.1.1" (my.tld.onl:80) violates local access rules
    Could not reach the provider at URL https://my.tld.onl/openid/.well-known/openid-configuration
    
    andreasduerenA Offline
    andreasduerenA Offline
    andreasdueren
    wrote on last edited by
    #55

    @andreasdueren said in Nextcloud OIDC integration:

    Just checked the logs (they are absolutely full):

    LocalServerException
    Host "127.0.1.1" (my.tld.onl:80) violates local access rules
    Could not reach the provider at URL https://my.tld.onl/openid/.well-known/openid-configuration
    

    @joseph said in Nextcloud OIDC integration:

    @andreasdueren can you tell me what made you add 127.0.1.1 ? Not sure what that IP is

    The console complained about it

    1 Reply Last reply
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    • andreasduerenA Offline
      andreasduerenA Offline
      andreasdueren
      wrote on last edited by
      #56

      @Joseph So this is weird. Even a fresh install of NC in a new, clean Cloudron is throwing the same error. Any idea why that would be?

      1 Reply Last reply
      0
      • nebulonN Offline
        nebulonN Offline
        nebulon
        Staff
        wrote on last edited by
        #57

        Did you apply any extra configs to Nextcloud? It is still unclear to me who prints this LocalServerException and why Nextcloud would refuse to connect to that endpoint. Have you looked in the Nextcloud forum/issue tracker about this?

        Given that you mentioned, that curl to that endpoint from within the nextcloud container works fine, it is somethign within Nextcloud it seems.

        andreasduerenA 1 Reply Last reply
        0
        • nebulonN nebulon

          Did you apply any extra configs to Nextcloud? It is still unclear to me who prints this LocalServerException and why Nextcloud would refuse to connect to that endpoint. Have you looked in the Nextcloud forum/issue tracker about this?

          Given that you mentioned, that curl to that endpoint from within the nextcloud container works fine, it is somethign within Nextcloud it seems.

          andreasduerenA Offline
          andreasduerenA Offline
          andreasdueren
          wrote on last edited by
          #58

          @nebulon Nope, new Nextcloud, not even logged in yet

          1 Reply Last reply
          0
          • J Offline
            J Offline
            joseph
            Staff
            wrote on last edited by
            #59

            Best to reach out at support@cloudron.io , it seems hard to debug . Atleast, fresh instances on all our servers and demo instances seem to work fine.

            andreasduerenA 1 Reply Last reply
            1
            • J joseph

              Best to reach out at support@cloudron.io , it seems hard to debug . Atleast, fresh instances on all our servers and demo instances seem to work fine.

              andreasduerenA Offline
              andreasduerenA Offline
              andreasdueren
              wrote on last edited by
              #60

              @Joseph Is this something you're interested in debugging? Otherwise I'll just wipe the machine and install fresh

              J 1 Reply Last reply
              1
              • andreasduerenA andreasdueren

                @Joseph Is this something you're interested in debugging? Otherwise I'll just wipe the machine and install fresh

                J Offline
                J Offline
                joseph
                Staff
                wrote on last edited by
                #61

                @andreasdueren yes, we would like to take a quick look, if possible. Maybe it's something obvious we miss in the package or something else

                1 Reply Last reply
                2
                • girishG Offline
                  girishG Offline
                  girish
                  Staff
                  wrote on last edited by
                  #62

                  @andreasdueren thanks for the access! I am making a new package to fix the issue.

                  For those interested, here is the technical information:

                  • On some VPS providers, when you create a VM with hostname my.foo.com , it will put an entry in /etc/hosts of the server with 127.0.1.1 .

                  • Starting Cloudron 8, we started using Docker for the DNS resolution. Docker reads /etc/hosts and starts resolving my.foo.com to 127.0.1.1 .

                  • This meant that for apps (which are running in containers) using the domain name my.foo.com (like OIDC service) does not work. This is because it's resolving to 127.0.1.1.

                  • To workaround this, we added ExtraHosts to container config. Docker simply adds entries to /etc/hosts of the container. Now, when apps try to resolve my.foo.com they will resolve to 172.18.0.1 because /etc/hosts has more priority than DNS look up.

                  • This works for all apps... except nextcloud has decided to implement some DNS pinning protection which I think is to prevent against DNS Rebinding attacks. This code looks up DNS directly (thus skipping /etc/hosts lookup) and thus ends up with 127.0.1.1 😕 It blocks the access thinking it's an attack.

                  • Luckily, there is a config dns_pinning to disable this functionality.

                  See also https://github.com/nextcloud/server/issues/42901

                  andreasduerenA 1 Reply Last reply
                  3
                  • girishG girish

                    @andreasdueren thanks for the access! I am making a new package to fix the issue.

                    For those interested, here is the technical information:

                    • On some VPS providers, when you create a VM with hostname my.foo.com , it will put an entry in /etc/hosts of the server with 127.0.1.1 .

                    • Starting Cloudron 8, we started using Docker for the DNS resolution. Docker reads /etc/hosts and starts resolving my.foo.com to 127.0.1.1 .

                    • This meant that for apps (which are running in containers) using the domain name my.foo.com (like OIDC service) does not work. This is because it's resolving to 127.0.1.1.

                    • To workaround this, we added ExtraHosts to container config. Docker simply adds entries to /etc/hosts of the container. Now, when apps try to resolve my.foo.com they will resolve to 172.18.0.1 because /etc/hosts has more priority than DNS look up.

                    • This works for all apps... except nextcloud has decided to implement some DNS pinning protection which I think is to prevent against DNS Rebinding attacks. This code looks up DNS directly (thus skipping /etc/hosts lookup) and thus ends up with 127.0.1.1 😕 It blocks the access thinking it's an attack.

                    • Luckily, there is a config dns_pinning to disable this functionality.

                    See also https://github.com/nextcloud/server/issues/42901

                    andreasduerenA Offline
                    andreasduerenA Offline
                    andreasdueren
                    wrote on last edited by
                    #63

                    @girish So I should add 'dns_pinning' => false, to the config file?

                    girishG 1 Reply Last reply
                    1
                    • andreasduerenA andreasdueren

                      @girish So I should add 'dns_pinning' => false, to the config file?

                      girishG Offline
                      girishG Offline
                      girish
                      Staff
                      wrote on last edited by
                      #64

                      @andreasdueren yes, pretty much. https://git.cloudron.io/packages/nextcloud-app/-/merge_requests/12

                      andreasduerenA 2 Replies Last reply
                      1
                      • girishG girish

                        @andreasdueren yes, pretty much. https://git.cloudron.io/packages/nextcloud-app/-/merge_requests/12

                        andreasduerenA Offline
                        andreasduerenA Offline
                        andreasdueren
                        wrote on last edited by
                        #65

                        @girish Works perfectly now, thanks!

                        1 Reply Last reply
                        2
                        • andreasduerenA Offline
                          andreasduerenA Offline
                          andreasdueren
                          wrote on last edited by
                          #66

                          Migration of a smaller instance seems to work smoothly so far.

                          1 Reply Last reply
                          1
                          • firmansiF Offline
                            firmansiF Offline
                            firmansi
                            wrote on last edited by firmansi
                            #67

                            @girish Since my installation is user not managed by Cloudron so I can't enable OIDC (but not just this, I can't curl the OIDC Server eventhough it's the same Cloudron server),i just want to let know the issue that I experience lately, after I updated Nextcloud including latest update with DNS Pinning, after update I can't login since the LDAP and Group Backend disabled automaticall after update, so i have to enable manually in Nextcloud Apps, the config in Nextcloud Setting for LDAP/AD Integration is a bit different than previously before update but anywhow I can still login back normally. Please be aware of this issue. Thanks

                            J 1 Reply Last reply
                            0
                            • girishG girish

                              @andreasdueren yes, pretty much. https://git.cloudron.io/packages/nextcloud-app/-/merge_requests/12

                              andreasduerenA Offline
                              andreasduerenA Offline
                              andreasdueren
                              wrote on last edited by
                              #68

                              @girish Proposition to change the OpenID Identifier from "Cloudron" to "OpenID" or "SSO" since we can't have the branding from the Cloudron instance

                              1 Reply Last reply
                              1
                              • firmansiF firmansi

                                @girish Since my installation is user not managed by Cloudron so I can't enable OIDC (but not just this, I can't curl the OIDC Server eventhough it's the same Cloudron server),i just want to let know the issue that I experience lately, after I updated Nextcloud including latest update with DNS Pinning, after update I can't login since the LDAP and Group Backend disabled automaticall after update, so i have to enable manually in Nextcloud Apps, the config in Nextcloud Setting for LDAP/AD Integration is a bit different than previously before update but anywhow I can still login back normally. Please be aware of this issue. Thanks

                                J Offline
                                J Offline
                                joseph
                                Staff
                                wrote on last edited by
                                #69

                                @firmansi the auth mechanism is chosen at install time. if you go behind cloudron's back and make changes to the app configuration, this will eventually not work. in your situation, you have installation nextcloud without LDAP/OIDC and then later configuring it inside the app manually. This won't work and is not supported. The way to fix this is like this:

                                • take backup of your nextcloud. download the backup configuration of this new backup
                                • install new nextcloud with cloudron user management
                                • import the backup from setup 1 . app -> backups -> import

                                It will work after this.

                                firmansiF 2 Replies Last reply
                                3
                                • firmansiF Offline
                                  firmansiF Offline
                                  firmansi
                                  wrote on last edited by firmansi
                                  #70

                                  Do you mean I simply back up in Cloudron? From my understanding, if I do the back up from Cloudron, then when I do the import, it will adjust to the old one without user management managed by Cloudron, please let me know if my assumption is wrong

                                  1 Reply Last reply
                                  0
                                  • J joseph

                                    @firmansi the auth mechanism is chosen at install time. if you go behind cloudron's back and make changes to the app configuration, this will eventually not work. in your situation, you have installation nextcloud without LDAP/OIDC and then later configuring it inside the app manually. This won't work and is not supported. The way to fix this is like this:

                                    • take backup of your nextcloud. download the backup configuration of this new backup
                                    • install new nextcloud with cloudron user management
                                    • import the backup from setup 1 . app -> backups -> import

                                    It will work after this.

                                    firmansiF Offline
                                    firmansiF Offline
                                    firmansi
                                    wrote on last edited by
                                    #71

                                    @joseph I can't curl https://my.domain.com/.well-known/openid-configuration , any suggestion what should I check?

                                    1 Reply Last reply
                                    0
                                    • J joseph

                                      @firmansi the auth mechanism is chosen at install time. if you go behind cloudron's back and make changes to the app configuration, this will eventually not work. in your situation, you have installation nextcloud without LDAP/OIDC and then later configuring it inside the app manually. This won't work and is not supported. The way to fix this is like this:

                                      • take backup of your nextcloud. download the backup configuration of this new backup
                                      • install new nextcloud with cloudron user management
                                      • import the backup from setup 1 . app -> backups -> import

                                      It will work after this.

                                      firmansiF Offline
                                      firmansiF Offline
                                      firmansi
                                      wrote on last edited by firmansi
                                      #72

                                      @joseph It seems the OIDC is working now, something wrong with Cloudflare that affect my Cloudron Installation,and follow your instruction I don exactly the same, backup and import, but now the Nextcloud is not responding with this error message

                                      Feb 09 21:49:20 => Healtheck error: Error: connect ECONNREFUSED 172.18.16.17:80
                                      Feb 09 21:49:20 No such app enabled: user_ldap
                                      Feb 09 21:49:20 ==> Ensure OIDC settings
                                      Feb 09 21:49:21 Error: Could not download app user_oidc
                                      Feb 09 21:49:22 2025-02-09T21:49:22+07:00
                                      Feb 09 21:49:22
                                      Feb 09 21:49:22 There are no commands defined in the "user_oidc" namespace.
                                      
                                      J 1 Reply Last reply
                                      0
                                      • firmansiF firmansi

                                        @joseph It seems the OIDC is working now, something wrong with Cloudflare that affect my Cloudron Installation,and follow your instruction I don exactly the same, backup and import, but now the Nextcloud is not responding with this error message

                                        Feb 09 21:49:20 => Healtheck error: Error: connect ECONNREFUSED 172.18.16.17:80
                                        Feb 09 21:49:20 No such app enabled: user_ldap
                                        Feb 09 21:49:20 ==> Ensure OIDC settings
                                        Feb 09 21:49:21 Error: Could not download app user_oidc
                                        Feb 09 21:49:22 2025-02-09T21:49:22+07:00
                                        Feb 09 21:49:22
                                        Feb 09 21:49:22 There are no commands defined in the "user_oidc" namespace.
                                        
                                        J Offline
                                        J Offline
                                        joseph
                                        Staff
                                        wrote on last edited by
                                        #73

                                        @firmansi said in Nextcloud OIDC integration:

                                        Feb 09 21:49:21 Error: Could not download app user_oidc

                                        This seems to be the issue. Can you put the app in repair mode and try sudo -u www-data php /app/code/occ app:install user_oidc ? Maybe some dns or network related issue preventing it from download the app from nextcloud's store

                                        firmansiF 1 Reply Last reply
                                        0
                                        • J joseph

                                          @firmansi said in Nextcloud OIDC integration:

                                          Feb 09 21:49:21 Error: Could not download app user_oidc

                                          This seems to be the issue. Can you put the app in repair mode and try sudo -u www-data php /app/code/occ app:install user_oidc ? Maybe some dns or network related issue preventing it from download the app from nextcloud's store

                                          firmansiF Offline
                                          firmansiF Offline
                                          firmansi
                                          wrote on last edited by
                                          #74

                                          @joseph Well, I think before I backup,i have to install the user_oidc first, because the container even can't start, I am doing the 2nd try

                                          J 1 Reply Last reply
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