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  3. I believe I'm having issues with DNS

I believe I'm having issues with DNS

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unbounddns
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    • M Offline
      M Offline
      Mastadamus
      wrote on last edited by girish
      #1

      I think something is going wrong with my new cloudron build. First I ran into DNS issues with the install script and had to do --redo.. Now I've had the email outbound SMTP randomly turn red and give me a "getaddrinfo EAI_AGAIN smtp.mailgun.org:587" error. I also have things like Rocketchat gif plugins start failing to find gifs, and I also had a container update error.. All of this corrects itself when I restart unbound. I've checked the unbound logs though and I see no issues. Any ideas?

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      • M Offline
        M Offline
        Mastadamus
        wrote on last edited by
        #2

        Note, my cloudron build is on ubuntu 20.04. This is a fresh install. I've SSH' on the box and curl'd google when I started having DNS troubles, and it wouldn't resolve. I restarted unbound(even though it was showing green) and It immediately started working. If i wait a period of time, something breaks again, and I start having resolver issues.

        M 1 Reply Last reply
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        • M Mastadamus

          Note, my cloudron build is on ubuntu 20.04. This is a fresh install. I've SSH' on the box and curl'd google when I started having DNS troubles, and it wouldn't resolve. I restarted unbound(even though it was showing green) and It immediately started working. If i wait a period of time, something breaks again, and I start having resolver issues.

          M Offline
          M Offline
          Mastadamus
          wrote on last edited by
          #3

          @Mastadamus Also note, i've seen nothing blocked outbound from my firewall for this host.

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          • M Mastadamus

            I think something is going wrong with my new cloudron build. First I ran into DNS issues with the install script and had to do --redo.. Now I've had the email outbound SMTP randomly turn red and give me a "getaddrinfo EAI_AGAIN smtp.mailgun.org:587" error. I also have things like Rocketchat gif plugins start failing to find gifs, and I also had a container update error.. All of this corrects itself when I restart unbound. I've checked the unbound logs though and I see no issues. Any ideas?

            M Offline
            M Offline
            Mastadamus
            wrote on last edited by Mastadamus
            #4

            @Mastadamus It just randomly can't resolve mailgun
            61d88e62-904a-42bf-91ab-6aa304d658d0-image.png

            M 1 Reply Last reply
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            • M Mastadamus

              @Mastadamus It just randomly can't resolve mailgun
              61d88e62-904a-42bf-91ab-6aa304d658d0-image.png

              M Offline
              M Offline
              Mastadamus
              wrote on last edited by
              #5

              @Mastadamus df292bcd-7a4c-451d-81a7-b33c6e1f6bf8-image.png

              M 1 Reply Last reply
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              • M Mastadamus

                @Mastadamus df292bcd-7a4c-451d-81a7-b33c6e1f6bf8-image.png

                M Offline
                M Offline
                Mastadamus
                wrote on last edited by
                #6

                @Mastadamus Then I restart Unbound and boom.. can resolve mailgun. This last time it seemed only mail gun was affected. Previous times I couldn't even resolve google
                6d938b8c-bf64-423e-989a-acfb7176668e-image.png

                girishG 1 Reply Last reply
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                • M Mastadamus

                  @Mastadamus Then I restart Unbound and boom.. can resolve mailgun. This last time it seemed only mail gun was affected. Previous times I couldn't even resolve google
                  6d938b8c-bf64-423e-989a-acfb7176668e-image.png

                  girishG Offline
                  girishG Offline
                  girish
                  Staff
                  wrote on last edited by
                  #7

                  @Mastadamus Looks like some DNSSEC error. Can you try disabling DNSSEC as described here - https://docs.cloudron.io/troubleshooting/#dns ?

                  M 1 Reply Last reply
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                  • girishG girish

                    @Mastadamus Looks like some DNSSEC error. Can you try disabling DNSSEC as described here - https://docs.cloudron.io/troubleshooting/#dns ?

                    M Offline
                    M Offline
                    Mastadamus
                    wrote on last edited by
                    #8

                    @girish I ended up configuring a forward lookup zone and forward all requests to my other internal dns server and now it works great. I will try some troubleshooting this week.

                    girishG 1 Reply Last reply
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                    • M Mastadamus

                      @girish I ended up configuring a forward lookup zone and forward all requests to my other internal dns server and now it works great. I will try some troubleshooting this week.

                      girishG Offline
                      girishG Offline
                      girish
                      Staff
                      wrote on last edited by
                      #9

                      @Mastadamus From the earlier screenshot you posted, the issue seems to be "Could not establish chain of trust". So, I would investigate that angle (which is DNSSEC related)

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