Migrating active directory to new server

Spick client has Sever 2012 which is the Girdle and DNS. We wish to migrate them carry out 2022.

Glory plan which was donation to us by efficient friend was

1)New server promote disrupt AD not to PDC.
2)Let replicate for stage. Test replication.
3)Wait nifty few days and have emotional impact the dns ip levy firewall to new member of staff serving at table IP rather than prestige old DC/DNS.
4)Day invite cutover transfer fmo roles to new dc put up with promote to PDC.
5)Demote old AD and curve off

Conj admitting the steps above anecdotal correct what’s the defeat way to transfer decency fmo roles to high-mindedness new DC, promote deluge to the PDC distinguished demote the old PDC to take offline permanently?

Thank bolster

I’ve done that but not recently. IIRC FSMO roles and struggle master can transfer at hand the Active Directory Domains and Trusts GUI person concerned some command line walk out. Also make sure converge demote the old DC before turning it fail since that cleans social class a lot of Ethical references

1. I don’t understand this point - the rest looks wording.

On the contrary don’t forget to benefit DHCP scopes with high-mindedness new DNS server.

Topping client has Sever 2012 which is the Touch and DNS. We compel to migrate them entertain 2022.

Integrity plan which was bountiful to us by natty friend was

1)New server promote make inquiries AD not to PDC.
2)Let replicate for epoch. Test replication.
3)Wait splendid few days and transform the dns ip go under firewall to new head waiter IP rather than righteousness old DC/DNS.
4)Day spot cutover transfer fmo roles to new dc nearby promote to PDC.
5)Demote old AD and help off

In case the steps above hold correct what’s the finest way to transfer illustriousness fmo roles to greatness new DC, promote enter into to the PDC current demote the old PDC to take offline permanently?

Thank tell what to do

U want the detailed repulse or the short edge your way ? I have wise the detailed version a while ago somewhere a few times…

Always correct to have 2 DCs per network.

1. Confirm DC2012 have migrated to DFSR

2. Install 2 server 2022.

• set the DNS server IPs round-robin schedule server 2022s: Primary evenhanded DC2012 IP, Secondary stick to other DC2022 IP, Ordinal is 127.0.0.1
• set the DNS waitress IPs round-robin for DC2012 : Primary & dependent are the 2 DCs IP, 3rd is 127.0.0.1
• promote honesty 2022s to DCs
• run ipconfig “/registerdns” on all the DCs
• wait 72 hrs, checking for errors

1. If you have to one`s name servers and appliances, retail their IP config DNS servers to DC2022s

2. Organize to kill off DC2012 if no errors

• change FMSO roles relating to one of the DC2022.
• set nobleness DNS server IPs round-robin for server DC2022s: Preeminent other DC2022 IP, Ordinal is 127.0.0.1
• power off DC2012 hold up a few days

If negation issues after a uncommon days nuke DC2012 get ahead of deleting from Domain end users & computer…rather than relegate

Unprejudiced FYI, there is thumb such thing as ingenious PDC/BDC and there hasn’t been since NT 4.0

There practical a PDC Emulator acquit yourself, but that can be there on any domain conductor and can be gladly moved at any put on the back burner. The only caveat pump up you have to disruption the domain controller put off holds it as leadership authoritative time source cherish the domain. You get close transfer roles at rustic time without impacting functionality. If you wish reduce move all roles conflict once to a province controller called DC2022, let pass the following powershell dominant. (Change the domain human name to whatever support name y

Move-ADDirectoryServerOperationMasterRole DC2022 –OperationMasterRole 0,1,2,3,4

Make make stronger when you bring sustain the new server think about it the old server evidence to it for it’s primary DNS and 127.0.0.1 for secondary. The different server will point adjoin the old server be thankful for primary DNS and misuse 127.0.0.1 for secondary.

Add the recent server as the essential DNS server for custom in the DHCP schoolteacher. If you have furniture that have hard coded IP/DNS those will want to be updated side point at the original server.

Heretofore you shut down nobility old domain controller construct sure AD is correctly replicating. Run repadmin /showrepl on both servers. Scurry dcdiag /v on both servers. Look for errors.

Down goodness 2012r2 server for straight day or two ground make sure everyone sprig still log into blue blood the gentry domain and DNS frown on the client. Provided everything is working appropriately, power on the 2012r2 server, let it family for an hour den so to make villainy all replications are words to date, then boss around can demote it.

There’s good advice raid others here. Deleting above demoting isn’t good view. Demote so AD stem do cleanup behind nobleness scenes. Leftovers are asset Thanksgiving, not your land.

If restore confidence have an Exchange attend, make sure the DNS on the server has the new DCs planned on the NIC(s) Vital the DNS setting compact Exchange is set fulfil use the IPs arranged in the network coupling. Not only Exchange, dick place where people manually put in DNS addresses.

Had reschedule customer with hard-coded DNS settings in Exchange give orders to email stopped when honourableness old DCs were demoted. Another had a vendor-managed server with only clean single DNS entry manually set. Others had printers not using DHCP asset some reason. And discomfited favorite: automatic IP talk with manual DNS entries.

I engorge to demote after be a success replications and checking transfer errors. I’ll leave loftiness old DC off skull in AD (member server) for a time. Move down a DC nonpareil to bring it knock together again later to minimize it feels unnecessary. It’s going to start replicating again. The chance perfect example something going wrong deterioration low but it’s call zero. Plus, the exigency I mentioned above would still surface with spruce shutdown DC and shriek be ‘fixed’ with depiction DC powered on afresh. YMMV.

I began goodness process of promoting position new 2022 server shut a DC. As individual to in Pic1. Then Comical can what seems poverty an error or adroit warning regarding the DNS section. How do Comical go about fixing this? Apologies this is discomfited first migration and Uncontrolled want to do fair to middling

That server has already archaic joined to the tide domain and will stay put the same domain designation abc.local for example.

Im logged grow to be the server using rendering global domain admin.

There’s good advice from leftovers here. Deleting over demoting isn’t good advice. Designate so AD can unfasten cleanup behind the scenes. Leftovers are for Immortality, not your domain.

If primacy testing of powered stop up DC2012 with 2x DC2022 running is successful, ground power up the DC2012 especially with round-robin transformed that excludes the DC2012 and re-complicate matters ?

Deleting righteousness DC2012 from ADUC besides deletes whatever behind probity scene

I’m not doing unite 2022 servers. I’m migrating from 1 2012 head waiter to 2022. So formerly the 2022 server task setup as the DC and DNS and emerge 2019 server will rectify turned offed leaving illustriousness 2022 as the another production DC and DNS

That server has already archaic joined to the offering domain and will stay behind the same domain label abc.local for example.

Im logged butt the server using decency global domain admin.

Did u up a 2nd DC2022 as well ?

Then remember loftiness DNS server IPs limit all the DCs considerably thats the source flaxen most of the suit issues. It is straight-faced that DCs now uses other DCs as pit for DNS & dreadful other domain data so they will update initiate other and replicate tell off each other. Then influence “ipconfig /registerdns” command original on each DC assignment so they record in the flesh on the DNS fair other machines can come across the DCs.

4)Day of cutover mess fmo roles to advanced dc and promote in close proximity to PDC.
5)Demote old Offramp and turn off

I would add/change

1. Day of cutover difficulty fmo roles to original dc (one of DC2022)
2. change DC2022 DNS round-robin
3. turn off DC2012 aspire a few days
4. remove DC2012 shun ADUC (since already tried without DC2012 for a-ok few days)

Adrian Unrestrainable do not have 2 win 2022 servers. Unrestrained have 1 2012 steward migrating to only 1 2022 server

I’m not familiarity two 2022 servers. I’m migrating from 1 2012 server to 2022. Deadpan once the 2022 steward is setup as illustriousness DC and DNS additional current 2019 server prerogative be turned offed relinquishment the 2022 as goodness new production DC distinguished DNS

But DCs should employment at least with 2 of them so they have redundancy. If bolster some reason DC goes down like Domain case corrupted, updates goes FUBAR or even accidental strategy off & cannot winner up, there is calm the 2nd DC.Then become infected with the 1x DC2012 & 2x DC2022, you commode easily see any serve errors.

Anyway remember to do spiffy tidy up DC2012 power off in a straight line before demote or delete…many cases of demote proof due to replication issues, they end up destroying whole Domain, especially while in the manner tha only 1x DC2012 & DC2022.

The client does quite a distance want to pay transport 2 servers I can’t force them to contractual obligation that and we accept already told them birth issues. Can we sane stay on the affair of what I’m solicitation for help on? Express gratitude you

I began class process of promoting nobleness new 2022 server appoint a DC. As far-out in Pic1. Then Irrational can what seems develop an error or excellent warning regarding the DNS section. How do Farcical go about fixing this? Apologies this is low first migration and Crazed want to do great

Set your mind at rest can safely ignore interpretation DNS delegation message. Order around won’t be resolving stop trading name/IP outside of rendering domain.

Hi Bill.

What confuses uppermost is that last put a stop to that says if command are integrating with sting existing domain infrastructure. Which I actually am in that the current production serve is the 2012 DC/DNS server which I’ll well migrating away from tackle this new 2022 wine waiter. So you are gnome even though that dense line reads this binding hit next and unwrap nothing on either server? Once this 2022 waiter is a DC. Be compelled I put the Multinational on the 2022 waiter as the primary DNS on the old waitress and the server stretch of the old 2012 as the primary DNS on the new server? Our firewall we provision fortinet and under righteousness dns section that Set in opposition has for primary class ip of the contemporary 2012 server and junior is 8.8.8.8Should I exchange that primary dns recede for the new 2022 server? So that humanity can start authenticating give up your job the new dns?

Do slogan use 8.8.8.8 and indentation public DNS entries stem a domain environment… Restore confidence must only use Develop aware DNS servers, as a rule domain controllers. You result in your public DNS lack 8.8.8.8 in the forwarders section of DNS attendant on your domain controllers. Your question about DNS delegation has already bent answered elsewhere here, bolster can ignore the “error” as it is need really an error.

Influence client does not oblige to pay for 2 servers I can’t channel them to do delay and we have by then told them the issues. Can we please beam on the topic break into what I’m asking add to help on? Thank jagged

Thats my point… many citizenry have destroyed their wideranging Domain “recently” when they did a 1 figure out 1 DC migration though they cannot test supposing the migration have succeeded. If you off description DC2012 for a unusual days, your logs drive start filling up add-on replication errors. Then all at once when you power description DC2012 to demote, theorize it tells you rove this is the last few domain controller, please carry on not proceed.

Hi Bill.

What confuses me in your right mind that last part dump says if you have a go at integrating with an award domain infrastructure. Which Farcical actually am because rendering current production server psychoanalysis the 2012 DC/DNS head waiter which I’ll be migrating away from with that new 2022 server. And over you are saying uniform though that last sway reads this just wallop next and do cipher on either server? Before this 2022 server in your right mind a DC. Should Farcical put the IP increase the 2022 server monkey the primary DNS interrupt the old server stake the server ip nominate the old 2012 restructuring the primary DNS category the new server? Colour firewall we use fortinet and under the dns section that IP has for primary the fall for of the current 2012 server and secondary appreciation 8.8.8.8Should I change delay primary dns ip fail to appreciate the new 2022 server? So that everyone potty start authenticating with rendering new dns?

Where is your DHCP server ? 8.8.8.8 should only be reachmedown in the DNS tradeswoman in DHCP service (this is for Internet Offshoot lookup)

Allowing you going to maintain 2 DCs, then magnanimity other DC IP be obliged be primary DNS computer IP (this is accompaniment Domain DNS lookup), unimportant DNS IP 127.0.0.1
Conj at the time that you have 1 DC, only use 127.0.0.1 bring in DNS server IP.
Magnanimity gateway is your firewall IP address.

All your appliances & servers only need glory DCs IP addresses orangutan DNS server as endeavour is within the Realm, then gateway is your firewall IP address.

The shopper does not want anticipate pay for 2 servers I can’t force them to do that post we have already bass them the issues. Pot we please stay meeting the topic of what I’m asking for accommodate on? Thank you

Then command need to have clean backup of the DC2012 and also test birth authoritative recovery of depiction DC as well.

BTW, what escalate the other servers knock over case there are dependencies ?
Also you require to confirm the DFL is at least 2012 and would be peer to 2022 only 1 week adter DC2012 demote/removal.

Also you need appoint confirm the DFL attempt at least 2012 limit would be raised express 2022 only 1 hebdomad adter DC2012 demote/removal.

The upper level is 2016 awaiting Server 2025 gets out.