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    Need to rename a Domain Controller

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    windows 2012 server dns active directory
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    • D
      Dashrender
      last edited by

      NTP is trivial unless you have software that is hard coded to look at that specific server for it.

      Moving the role is trivial too - I've never had a problem personally when moving any FSMO role.

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      • ?
        A Former User @Dashrender
        last edited by

        @Dashrender said:

        NTP is trivial unless you have software that is hard coded to look at that specific server for it.

        Moving the role is trivial too - I've never had a problem personally when moving any FSMO role.

        Trivial yes, but according to Microsoft unnecessary.

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        • D
          Dashrender
          last edited by

          OK I looked - interesting.. but only 2003 and 2003 r2 are listed.

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          • K
            Kelly
            last edited by Kelly

            In my experience renaming a DC without following @Dashrender's steps is asking for issues down the road. AD and DNS just don't play well at times, and anything affecting that fragile relationship goes into the "do not do" category for me.

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            • I
              IRJ
              last edited by

              @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

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              • H
                handsofqwerty @IRJ
                last edited by

                @IRJ said:

                @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

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                • H
                  handsofqwerty
                  last edited by

                  If you need to rename it, why not just create a new VM, move FSMO roles over and then move the other functions over as well?

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                  • ?
                    A Former User @handsofqwerty
                    last edited by

                    @handsofqwerty said:

                    @IRJ said:

                    @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                    Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

                    It's not it's just someone improperly licensed it, as it's datacenter on a different server not licensed for Datacenter. It is only a DC with DHCP. But I want two DCs up at all times and the new DC I will be making will needs to have the Hostname that this DC does.

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                    • H
                      handsofqwerty @A Former User
                      last edited by

                      @thecreativeone91 said:

                      @handsofqwerty said:

                      @IRJ said:

                      @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                      Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

                      It's not it's just someone improperly licensed it, as it's datacenter on a different server not licensed for Datacenter. It is only a DC with DHCP. But I want two DCs up at all times and the new DC I will be making will needs to have the Hostname that this DC does.

                      So if you've got another DC currently, move the PDC role to it, spin up the VM where it needs to be, elevate it to a DC and then demote this one and decomm it. If for a couple hours you've got a license issue, I don't think that's really an issue since you'll be removing the one. So for a very brief time you'll have three DCs until you decommission the original one.

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                      • I
                        IRJ @A Former User
                        last edited by

                        @thecreativeone91 said:

                        @handsofqwerty said:

                        @IRJ said:

                        @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                        Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

                        It's not it's just someone improperly licensed it, as it's datacenter on a different server not licensed for Datacenter. It is only a DC with DHCP. But I want two DCs up at all times and the new DC I will be making will needs to have the Hostname that this DC does.

                        It's very easy to export DHCP scopes and settings.

                        H 1 Reply Last reply Reply Quote 1
                        • H
                          handsofqwerty @IRJ
                          last edited by

                          @IRJ said:

                          @thecreativeone91 said:

                          @handsofqwerty said:

                          @IRJ said:

                          @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                          Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

                          It's not it's just someone improperly licensed it, as it's datacenter on a different server not licensed for Datacenter. It is only a DC with DHCP. But I want two DCs up at all times and the new DC I will be making will needs to have the Hostname that this DC does.

                          It's very easy to export DHCP scopes and settings.

                          Yeah, exactly. Or if it's not a complex setup, it might be just as easy to replicate the settings from scratch. It depends on what you have setup.

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                          • ?
                            A Former User
                            last edited by

                            After talking to several sr system admins I'll just rename it. There's a recommended practice from Microsoft on it and no one has ever had an issue doing it.

                            dafyreD 1 Reply Last reply Reply Quote 0
                            • dafyreD
                              dafyre @A Former User
                              last edited by

                              @thecreativeone91 You better cross your eyes, fingers, toes and legs... and knock on wood before you start, lol.

                              ? 1 Reply Last reply Reply Quote 0
                              • ?
                                A Former User @dafyre
                                last edited by

                                @dafyre said:

                                @thecreativeone91 You better cross your eyes, fingers, toes and legs... and knock on wood before you start, lol.

                                Lol. as long as it's only a DC there's little to go wrong you verfiy the DNS updates at each step. as long as the DNS is updated correctly for replication then there is nothing to go wrong.

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                                • I
                                  IRJ
                                  last edited by

                                  I will never change anything major on a DC ever again. It's too easy to just spin up a new one and demote the old one. This way you have no downtime at all and no chance for anything to go wrong.

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                                  • I
                                    IRJ @A Former User
                                    last edited by

                                    @thecreativeone91 said:

                                    @dafyre said:

                                    @thecreativeone91 You better cross your eyes, fingers, toes and legs... and knock on wood before you start, lol.

                                    Lol. as long as it's only a DC there's little to go wrong you verfiy the DNS updates at each step. as long as the DNS is updated correctly for replication then there is nothing to go wrong.

                                    Any reason you want to walk on egg shells and have downtime?

                                    ? 1 Reply Last reply Reply Quote 0
                                    • D
                                      Dashrender @A Former User
                                      last edited by

                                      @thecreativeone91 said:

                                      @handsofqwerty said:

                                      @IRJ said:

                                      @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                                      Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

                                      It's not it's just someone improperly licensed it, as it's datacenter on a different server not licensed for Datacenter. It is only a DC with DHCP. But I want two DCs up at all times and the new DC I will be making will needs to have the Hostname that this DC does.

                                      Mind if I ask why the new one needs the name of the current one?

                                      ? 1 Reply Last reply Reply Quote 0
                                      • ?
                                        A Former User @Dashrender
                                        last edited by

                                        @Dashrender said:

                                        @thecreativeone91 said:

                                        @handsofqwerty said:

                                        @IRJ said:

                                        @Dashrender has a solid plan, but why not just demote and rebuild the VM? Of course that is assuming your DCs are just DCs and having nothing else on them.

                                        Totally agree with this. I'd assume if he's looking to rename it's because there ARE other things on it.

                                        It's not it's just someone improperly licensed it, as it's datacenter on a different server not licensed for Datacenter. It is only a DC with DHCP. But I want two DCs up at all times and the new DC I will be making will needs to have the Hostname that this DC does.

                                        Mind if I ask why the new one needs the name of the current one?

                                        So software configs that authenticate against a single DC don't need to be changed. as many of them only allow one DC.

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                                        • ?
                                          A Former User @IRJ
                                          last edited by

                                          @IRJ said:

                                          @thecreativeone91 said:

                                          @dafyre said:

                                          @thecreativeone91 You better cross your eyes, fingers, toes and legs... and knock on wood before you start, lol.

                                          Lol. as long as it's only a DC there's little to go wrong you verfiy the DNS updates at each step. as long as the DNS is updated correctly for replication then there is nothing to go wrong.

                                          Any reason you want to walk on egg shells and have downtime?

                                          It's not walking on egg shells nor will there be any downtime.

                                          1 Reply Last reply Reply Quote 0
                                          • ?
                                            A Former User @IRJ
                                            last edited by

                                            @IRJ said:

                                            I will never change anything major on a DC ever again. It's too easy to just spin up a new one and demote the old one. This way you have no downtime at all and no chance for anything to go wrong.

                                            I would have to spin up multiple DCs to do this. And Renaming a DC is well supported and easy to do. you just gotta make sure you do it right.

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