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    DNS issues on 2003 network

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    • wirestyle22W
      wirestyle22 @thwr
      last edited by

      @thwr said in DNS issues on 2003 network:

      @wirestyle22 said in DNS issues on 2003 network:

      @thwr said in DNS issues on 2003 network:

      @thwr said in DNS issues on 2003 network:

      @momurda said in DNS issues on 2003 network:

      You can check the Event Viewer on your server nslookup errors and also on the DC, should be easy to see what the problem is.

      If you do an ipconfig /flushdns on your client pc, can you ping the file server afterwards? But yes you should definitely make another dc ratehr than 2003.

      5(?) people looked into this and we had to guess a lot because the symptoms didn't make much sense. Event log on the server maybe, but who knows. Getting rid of SEP prior of anything else is his best bet IMHO.

      Wait, something else coming to mind: You can't query the public google DNS (8.8.8.8) from your failing hosts?

      you mean nslookup www.crayola.com 8.8.8.8? No

      We need to investigate that. Are you sure that there's no firewall / Norton / Symantec / whatever installed on the print- or fileserver? Because that's not related to your DC.

      What kind of internet connectivity do your failing hosts have? Directly outbound via a gateway? Some proxy?

      0_1473435593910_sure.jpg

      thwrT BRRABillB 2 Replies Last reply Reply Quote 0
      • thwrT
        thwr @wirestyle22
        last edited by

        @wirestyle22 said in DNS issues on 2003 network:

        @thwr said in DNS issues on 2003 network:

        @wirestyle22 said in DNS issues on 2003 network:

        @thwr said in DNS issues on 2003 network:

        @thwr said in DNS issues on 2003 network:

        @momurda said in DNS issues on 2003 network:

        You can check the Event Viewer on your server nslookup errors and also on the DC, should be easy to see what the problem is.

        If you do an ipconfig /flushdns on your client pc, can you ping the file server afterwards? But yes you should definitely make another dc ratehr than 2003.

        5(?) people looked into this and we had to guess a lot because the symptoms didn't make much sense. Event log on the server maybe, but who knows. Getting rid of SEP prior of anything else is his best bet IMHO.

        Wait, something else coming to mind: You can't query the public google DNS (8.8.8.8) from your failing hosts?

        you mean nslookup www.crayola.com 8.8.8.8? No

        We need to investigate that. Are you sure that there's no firewall / Norton / Symantec / whatever installed on the print- or fileserver? Because that's not related to your DC.

        What kind of internet connectivity do your failing hosts have? Directly outbound via a gateway? Some proxy?

        0_1473435593910_sure.jpg

        That doesn't answer my question 😉 Are you using some form of a proxy for outbound internet access? Like MS ISA/TMG, Squid, Astaro etc?

        wirestyle22W 1 Reply Last reply Reply Quote 0
        • wirestyle22W
          wirestyle22 @thwr
          last edited by

          @thwr said in DNS issues on 2003 network:

          @wirestyle22 said in DNS issues on 2003 network:

          @thwr said in DNS issues on 2003 network:

          @wirestyle22 said in DNS issues on 2003 network:

          @thwr said in DNS issues on 2003 network:

          @thwr said in DNS issues on 2003 network:

          @momurda said in DNS issues on 2003 network:

          You can check the Event Viewer on your server nslookup errors and also on the DC, should be easy to see what the problem is.

          If you do an ipconfig /flushdns on your client pc, can you ping the file server afterwards? But yes you should definitely make another dc ratehr than 2003.

          5(?) people looked into this and we had to guess a lot because the symptoms didn't make much sense. Event log on the server maybe, but who knows. Getting rid of SEP prior of anything else is his best bet IMHO.

          Wait, something else coming to mind: You can't query the public google DNS (8.8.8.8) from your failing hosts?

          you mean nslookup www.crayola.com 8.8.8.8? No

          We need to investigate that. Are you sure that there's no firewall / Norton / Symantec / whatever installed on the print- or fileserver? Because that's not related to your DC.

          What kind of internet connectivity do your failing hosts have? Directly outbound via a gateway? Some proxy?

          0_1473435593910_sure.jpg

          That doesn't answer my question 😉 Are you using some form of a proxy for outbound internet access? Like MS ISA/TMG, Squid, Astaro etc?

          No we are not

          thwrT 1 Reply Last reply Reply Quote 1
          • BRRABillB
            BRRABill @wirestyle22
            last edited by

            @wirestyle22 said in DNS issues on 2003 network:

            @thwr said in DNS issues on 2003 network:

            @wirestyle22 said in DNS issues on 2003 network:

            @thwr said in DNS issues on 2003 network:

            @thwr said in DNS issues on 2003 network:

            @momurda said in DNS issues on 2003 network:

            You can check the Event Viewer on your server nslookup errors and also on the DC, should be easy to see what the problem is.

            If you do an ipconfig /flushdns on your client pc, can you ping the file server afterwards? But yes you should definitely make another dc ratehr than 2003.

            5(?) people looked into this and we had to guess a lot because the symptoms didn't make much sense. Event log on the server maybe, but who knows. Getting rid of SEP prior of anything else is his best bet IMHO.

            Wait, something else coming to mind: You can't query the public google DNS (8.8.8.8) from your failing hosts?

            you mean nslookup www.crayola.com 8.8.8.8? No

            We need to investigate that. Are you sure that there's no firewall / Norton / Symantec / whatever installed on the print- or fileserver? Because that's not related to your DC.

            What kind of internet connectivity do your failing hosts have? Directly outbound via a gateway? Some proxy?

            0_1473435593910_sure.jpg

            Wait ... no Internet access ... that isn't good.

            1 Reply Last reply Reply Quote 0
            • thwrT
              thwr @wirestyle22
              last edited by

              @wirestyle22 said in DNS issues on 2003 network:

              @thwr said in DNS issues on 2003 network:

              @wirestyle22 said in DNS issues on 2003 network:

              @thwr said in DNS issues on 2003 network:

              @wirestyle22 said in DNS issues on 2003 network:

              @thwr said in DNS issues on 2003 network:

              @thwr said in DNS issues on 2003 network:

              @momurda said in DNS issues on 2003 network:

              You can check the Event Viewer on your server nslookup errors and also on the DC, should be easy to see what the problem is.

              If you do an ipconfig /flushdns on your client pc, can you ping the file server afterwards? But yes you should definitely make another dc ratehr than 2003.

              5(?) people looked into this and we had to guess a lot because the symptoms didn't make much sense. Event log on the server maybe, but who knows. Getting rid of SEP prior of anything else is his best bet IMHO.

              Wait, something else coming to mind: You can't query the public google DNS (8.8.8.8) from your failing hosts?

              you mean nslookup www.crayola.com 8.8.8.8? No

              We need to investigate that. Are you sure that there's no firewall / Norton / Symantec / whatever installed on the print- or fileserver? Because that's not related to your DC.

              What kind of internet connectivity do your failing hosts have? Directly outbound via a gateway? Some proxy?

              0_1473435593910_sure.jpg

              That doesn't answer my question 😉 Are you using some form of a proxy for outbound internet access? Like MS ISA/TMG, Squid, Astaro etc?

              No we are not

              ok, so why the heck can't you query 8.8.8.8? This is almost a no-brainer.

              1 Reply Last reply Reply Quote 0
              • wirestyle22W
                wirestyle22
                last edited by wirestyle22

                I'm going to reboot my ESX02 host. I tried to do this from a few VM's and I see that none of them are working. Giving me an inkling into what could be the problem.

                0_1473435889035_VM.jpg

                No one would know if any of these other servers are functioning. They are actually somewhat unimportant with the exception of the print and file server. I think it's the host.

                BRRABillB coliverC 2 Replies Last reply Reply Quote 0
                • BRRABillB
                  BRRABill @wirestyle22
                  last edited by

                  @wirestyle22 said in DNS issues on 2003 network:

                  I'm going to reboot my ESX02 host. I tried to do this from a few VM's and I see that none of them are working. Giving me an inkling into what could be the problem.

                  That thing has probably been rebooted more in the past few hours than in months combined!

                  1 Reply Last reply Reply Quote 1
                  • coliverC
                    coliver @wirestyle22
                    last edited by

                    @wirestyle22 said in DNS issues on 2003 network:

                    I'm going to reboot my ESX02 host. I tried to do this from a few VM's and I see that none of them are working. Giving me an inkling into what could be the problem.

                    0_1473435889035_VM.jpg

                    No one would know if any of these other servers are functioning. They are actually somewhat unimportant with the exception of the print and file server. I think it's the host.

                    Why are they running if people don't need them?

                    wirestyle22W 1 Reply Last reply Reply Quote 0
                    • wirestyle22W
                      wirestyle22 @coliver
                      last edited by

                      @coliver said in DNS issues on 2003 network:

                      @wirestyle22 said in DNS issues on 2003 network:

                      I'm going to reboot my ESX02 host. I tried to do this from a few VM's and I see that none of them are working. Giving me an inkling into what could be the problem.

                      0_1473435889035_VM.jpg

                      No one would know if any of these other servers are functioning. They are actually somewhat unimportant with the exception of the print and file server. I think it's the host.

                      Why are they running if people don't need them?

                      I just mean non-crucial. They are needed it's just not anyone would notice if they were down. Everything on ESX01 is functioning. Could this possibly be an NTP issue with the second host? I know the VM's are supposed to sync with the host itself

                      scottalanmillerS thwrT 3 Replies Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller @wirestyle22
                        last edited by

                        @wirestyle22 said in DNS issues on 2003 network:

                        @coliver said in DNS issues on 2003 network:

                        @wirestyle22 said in DNS issues on 2003 network:

                        I'm going to reboot my ESX02 host. I tried to do this from a few VM's and I see that none of them are working. Giving me an inkling into what could be the problem.

                        0_1473435889035_VM.jpg

                        No one would know if any of these other servers are functioning. They are actually somewhat unimportant with the exception of the print and file server. I think it's the host.

                        Why are they running if people don't need them?

                        I just mean non-crucial. They are needed it's just not anyone would notice if they were down. Everything on ESX01 is functioning. Could this possibly be an NTP issue with the second host? I know the VM's are supposed to sync with the host itself

                        Check the time, is it right? Then NTP isn't the issue.

                        1 Reply Last reply Reply Quote 0
                        • scottalanmillerS
                          scottalanmiller
                          last edited by

                          Time does not affect DNS, though.

                          1 Reply Last reply Reply Quote 0
                          • thwrT
                            thwr @wirestyle22
                            last edited by

                            @wirestyle22 said in DNS issues on 2003 network:

                            @coliver said in DNS issues on 2003 network:

                            @wirestyle22 said in DNS issues on 2003 network:

                            I'm going to reboot my ESX02 host. I tried to do this from a few VM's and I see that none of them are working. Giving me an inkling into what could be the problem.

                            0_1473435889035_VM.jpg

                            No one would know if any of these other servers are functioning. They are actually somewhat unimportant with the exception of the print and file server. I think it's the host.

                            Why are they running if people don't need them?

                            I just mean non-crucial. They are needed it's just not anyone would notice if they were down. Everything on ESX01 is functioning. Could this possibly be an NTP issue with the second host? I know the VM's are supposed to sync with the host itself

                            Probably not the source of the problem, but you shouldn't do this. Use NTP, have seen lots of problems with hypervisor time syncs.

                            1 Reply Last reply Reply Quote 1
                            • scottalanmillerS
                              scottalanmiller @wirestyle22
                              last edited by

                              @wirestyle22 said in DNS issues on 2003 network:

                              I know the VM's are supposed to sync with the host itself

                              No, they most certainly are not.

                              thwrT 1 Reply Last reply Reply Quote 0
                              • thwrT
                                thwr @scottalanmiller
                                last edited by

                                @scottalanmiller said in DNS issues on 2003 network:

                                @wirestyle22 said in DNS issues on 2003 network:

                                I know the VM's are supposed to sync with the host itself

                                No, they most certainly are not.

                                Don't be mean 😉

                                scottalanmillerS 1 Reply Last reply Reply Quote 0
                                • scottalanmillerS
                                  scottalanmiller @thwr
                                  last edited by

                                  @thwr said in DNS issues on 2003 network:

                                  @scottalanmiller said in DNS issues on 2003 network:

                                  @wirestyle22 said in DNS issues on 2003 network:

                                  I know the VM's are supposed to sync with the host itself

                                  No, they most certainly are not.

                                  Don't be mean 😉

                                  Just making it clear that the bit he was sure of, was backwards.

                                  1 Reply Last reply Reply Quote 1
                                  • wirestyle22W
                                    wirestyle22
                                    last edited by

                                    They asked me to troubleshoot our pendant system so I'm going to be gone for a bit.

                                    DustinB3403D 1 Reply Last reply Reply Quote 0
                                    • DustinB3403D
                                      DustinB3403 @wirestyle22
                                      last edited by

                                      @wirestyle22 said in DNS issues on 2003 network:

                                      They asked me to troubleshoot our pendant system so I'm going to be gone for a bit.

                                      Has this issue been resolved yet? Or are they pulling you to look at yet another problem?

                                      Seems like you need some support, one person can't do everything..

                                      thwrT scottalanmillerS 2 Replies Last reply Reply Quote 2
                                      • thwrT
                                        thwr @DustinB3403
                                        last edited by

                                        @DustinB3403 said in DNS issues on 2003 network:

                                        @wirestyle22 said in DNS issues on 2003 network:

                                        They asked me to troubleshoot our pendant system so I'm going to be gone for a bit.

                                        Has this issue been resolved yet? Or are they pulling you to look at yet another problem?

                                        Seems like you need some support, one person can't do everything..

                                        YMMD 😉

                                        DustinB3403D 1 Reply Last reply Reply Quote 0
                                        • DustinB3403D
                                          DustinB3403 @thwr
                                          last edited by

                                          @thwr said in DNS issues on 2003 network:

                                          @DustinB3403 said in DNS issues on 2003 network:

                                          @wirestyle22 said in DNS issues on 2003 network:

                                          They asked me to troubleshoot our pendant system so I'm going to be gone for a bit.

                                          Has this issue been resolved yet? Or are they pulling you to look at yet another problem?

                                          Seems like you need some support, one person can't do everything..

                                          YMMD 😉

                                          what does that mean?

                                          thwrT 1 Reply Last reply Reply Quote 0
                                          • thwrT
                                            thwr @DustinB3403
                                            last edited by

                                            @DustinB3403 said in DNS issues on 2003 network:

                                            @thwr said in DNS issues on 2003 network:

                                            @DustinB3403 said in DNS issues on 2003 network:

                                            @wirestyle22 said in DNS issues on 2003 network:

                                            They asked me to troubleshoot our pendant system so I'm going to be gone for a bit.

                                            Has this issue been resolved yet? Or are they pulling you to look at yet another problem?

                                            Seems like you need some support, one person can't do everything..

                                            YMMD 😉

                                            what does that mean?

                                            you made my day... because in theory you are totally right, in reality, well, there are things called SMB and NGO etc.

                                            1 Reply Last reply Reply Quote 0
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