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    Solved AD Sync between two Sites

    IT Discussion
    server 2012 active directory security sync issues replication
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    • G
      gjacobse
      last edited by

      Active Directory Replication is something new to me. Previous Server systems I have maintained have not needed to have replication as they were only one system.

      I am looking into why replication is failing between two sites. It was working, stopped, was addressed by another person and now seems to have stopped again.

      Unless I am not waiting long enough for replication to occur.

      What/Where should I start to look to try to isolate why the replication didn't occur?

      T 1 Reply Last reply Reply Quote 3
      • L
        LAH3385
        last edited by

        A screen shots of the error message would be a very good start.

        I once had replication issue before, but that was due to AD on one of the server contain lingering object. Not sure if it is the same as what you are experiencing or not.

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        • C
          coliver
          last edited by

          You may want to look into the repadmin command. This will give you an insight into how the replication is working. I think it can even output log files associated with AD replication.

          D 1 Reply Last reply Reply Quote 1
          • L
            LAH3385 @LAH3385
            last edited by

            @LAH3385 I guess a better question for you is: How did you know, or realized, AD replication has stop working?

            G 1 Reply Last reply Reply Quote 1
            • S
              scottalanmiller
              last edited by

              Network connectivity is a big factor. How fast is it, how reliable is it.

              1 Reply Last reply Reply Quote 1
              • G
                gjacobse @LAH3385
                last edited by

                @LAH3385 said:

                @LAH3385 I guess a better question for you is: How did you know, or realized, AD replication has stop working?

                Created User on one side of AD,.. checked the other side, User was NOT there.

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                • D
                  Dashrender @gjacobse
                  last edited by

                  @gjacobse said:

                  @LAH3385 said:

                  @LAH3385 I guess a better question for you is: How did you know, or realized, AD replication has stop working?

                  Created User on one side of AD,.. checked the other side, User was NOT there.

                  long distance replication can take over 15 mins to happen.

                  G 1 Reply Last reply Reply Quote 0
                  • D
                    Dashrender @coliver
                    last edited by

                    @coliver said:

                    You may want to look into the repadmin command. This will give you an insight into how the replication is working. I think it can even output log files associated with AD replication.

                    reposted

                    here are some additional notes
                    https://technet.microsoft.com/en-us/library/cc794749(v=ws.10).aspx?f=255&MSPPError=-2147217396

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                    • G
                      gjacobse @Dashrender
                      last edited by

                      @Dashrender said:

                      @gjacobse said:

                      @LAH3385 said:

                      @LAH3385 I guess a better question for you is: How did you know, or realized, AD replication has stop working?

                      Created User on one side of AD,.. checked the other side, User was NOT there.

                      long distance replication can take over 15 mins to happen.

                      I expected as much.

                      It's been a hour now.

                      D 1 Reply Last reply Reply Quote 0
                      • D
                        Dashrender @gjacobse
                        last edited by

                        @gjacobse said:

                        @Dashrender said:

                        @gjacobse said:

                        @LAH3385 said:

                        @LAH3385 I guess a better question for you is: How did you know, or realized, AD replication has stop working?

                        Created User on one side of AD,.. checked the other side, User was NOT there.

                        long distance replication can take over 15 mins to happen.

                        I expected as much.

                        It's been a hour now.

                        what does repadmin tell you?

                        1 Reply Last reply Reply Quote 0
                        • G
                          gjacobse
                          last edited by

                          C:\Windows\system32>repadmin /showrepl
                          
                          Repadmin: running command /showrepl against full DC localhost
                          DomainName \Srvr-DC3
                          DSA Options: IS_GC
                          Site Options: (none)
                          DSA object GUID: 1a460929-6e4c-4fc3-8377-5ef3b92b422d
                          DSA invocationID: d85ce1be-42cb-423c-9187-1135bcf58f94
                          
                          ==== INBOUND NEIGHBORS ======================================
                          
                          DC=Domain Name,DC=com
                              Default-First-Site-Name\Srvr-DC2 via RPC
                                  DSA object GUID: xxxxxxx-xxxx-xxxx-xxxx-f589d72ba337
                                  Last attempt @ 2016-02-24 10:03:26 was successful.
                          
                          CN=Configuration,DC=Domain Name,DC=com
                              Default-First-Site-Name\Srvr-DC2 via RPC
                                  DSA object GUID: xxxxxxx-xxxx-xxxx-xxxx-f589d72ba337
                                  Last attempt @ 2016-02-24 10:03:26 was successful.
                          
                          CN=Schema,CN=Configuration,DC=Domain Name,DC=com
                              Default-First-Site-Name\Srvr-DC2 via RPC
                                  DSA object GUID: xxxxxxx-xxxx-xxxx-xxxx-f589d72ba337
                                  Last attempt @ 2016-02-24 10:03:27 was successful.
                          
                          DC=DomainDnsZones,DC=Domain Name,DC=com
                              Default-First-Site-Name\Srvr-DC2 via RPC
                                  DSA object GUID: xxxxxxx-xxxx-xxxx-xxxx-f589d72ba337
                                  Last attempt @ 2016-02-24 10:03:27 was successful.
                          
                          DC=ForestDnsZones,DC=Domain Name,DC=com
                              Default-First-Site-Name\Srvr-DC2 via RPC
                                  DSA object GUID: xxxxxxx-xxxx-xxxx-xxxx-f589d72ba337
                                  Last attempt @ 2016-02-24 10:03:27 was successful.
                          

                          looking to force replication now.

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                          • C
                            coliver
                            last edited by

                            I think it is

                            repadmin /replicate DC1 DC2 dc=domain,dc=com
                            
                            1 Reply Last reply Reply Quote 1
                            • D
                              Dashrender
                              last edited by

                              Everything looks good - I've heard of replication taking up to 4 hours before.

                              G 1 Reply Last reply Reply Quote 1
                              • G
                                gjacobse @Dashrender
                                last edited by

                                It just occurred to me... does it matter which end this is performed from?

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                                • T
                                  thedalton @gjacobse
                                  last edited by

                                  @gjacobse you may want to check your site link replication schedule. The default is 180 minutes. You can drop it down to 15 minutes

                                  1 Reply Last reply Reply Quote 2
                                  • G
                                    gjacobse
                                    last edited by

                                    @coliver said:

                                    repadmin /replicate DC1 DC2 dc=domain,dc=com

                                    So I have have limited success.. but success was made. I the user I created on the other end,.. is now on the local AD.

                                    I'll look at this more,.. but think it's otherwise solved.

                                    1 Reply Last reply Reply Quote 0
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