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7

As a best practice, you should be running AD DS and AD-Integrated DNS zones (ADI zones) on the same server. This is because the DNS records in ADI zones are replicated using AD DS replication and are stored in the directory, rather than using things like a zone transfer to get records across multiple DNS servers. If you want to use ADI zones for your ...


6

There are other good answers to this, but they're fairly theoretical. I thought it might be useful for you to know that I've done this, on a number of occasions, and it's fine, but on CentOS servers using dovecot and sendmail, and I use mbox as a storage format. I know you're using postfix and Maildir, and I'm sorry I can't shed specific light on that; I ...


6

How about a zero downtime migration? This is my general plan for such migrations: Set up an ad hoc VPN between the old server and the new server (e.g. with OpenVPN). Copy the entire application from the old server to the new server. Set up database replication between the old server and the new server, with the old server as master and the new server as ...


5

You'll have to reassign or seize the RID master role on a functioning domain controller. Microsoft says: Do not seize the RID master role if you can transfer it instead. Seizing the RID master is a drastic step that should be considered only if the current operations master will never be available again. For more information about transferring ...


5

If it's only Active Directory that you want to move then one possible solution can be is to install a secondary Domain Controller(DC) in your VM, transfer all FSMO Roles to the VM and then demote your older DC. Check the following links for step-by-step process Adding a 2012 Domain Controller to an existing Domain Demoting a 2012 Domain Controller ...


4

The first answer from jornane is correct so far as it goes, however I do not believe it addresses what the OP is really trying to get at - which is how best to handle migration of email and accounts, rather than how to handle DNS. Ordinarily there are many ways to handle this task, but because we are dealing with only one server which will be going through ...


4

The answer is yes, and there's no conflicting information. Any person, article or resource that claims this doesn't occur is just plain wrong. The linked article explains the process. This has not changed from Windows 2000 and carries forward all the way through Windows Server 2012 R2. Make note of these sections: The transfer of an FSMO role is the ...


4

There is no such mechanism. This is because it is the way DNS and its caching mechanisms work. This is usually handled before the migration by setting the TTL for the A record to the minimum value possible, so that DNS servers keep the IP address cached for the least possible time. However, only in rare cases you can set the TTL to zero, which would ...


4

There are a lot of different ways to migrate the databases. Backup and restore is the most commonly recommended, but if you have more than 100 databases you might want to script something to detach and attach the databases. I've successfully used this to migrate a very large number (hundreds) of databases to a new server: @ECHO ON set ...


3

The problem is that with the first command you create a new logical drive - when finished you will have two LDs, each containing one disk. What you need to do instead is add the unassigned disk to the original RAID0 LD and then invoke the modify command. In other words: ctrl slot=0 ld=1 add drives=allunassigned And then: ctrl slot=0 ld=1 modify raid=1 ...


3

Move to new Service / their own domain. Have the current ISP setup a mail forward to the new email address, and hopefully an autoresponder that says something along the lines of 'In order to better serve you, we are now XXX@company. please update your address books'. Gmail has an option to pop into your old mail account on a schedule, other cloud services ...


3

Scary the situation you're in, but not impossible, and can be solved easily by enabling "SMTP matching", which is a process of transferring the source of authority from your Office 365 to your local active directory. this can be achieved by matching the SMTP address of your Office 365 accounts to the SMTP address of your Active Directory accounts, and using ...


3

Yes, you can move the virtual machine from one host to the other. It's less than ideal, since your VM will be scheduled across two physical CPUs, but it will definitely work.


3

Another reason for this error is when you have 7z.exe but do not also have 7z.dll - both are needed for the commandline program to work properly. Copying just these two files from the normal 7-zip GUI install folder is enough for a portable version of the commandline program on our CI.


3

I guess for now it's your responsibility to make sure data is available. You might want to check https://github.com/ClusterHQ/flocker which is specifically designed to take care to take data along with docker containers. I think it relies on ZFS features which may rule out its usage on CoreOS. The only alternative I could come up with is using a highly ...


3

See, you were talking about Active Directory migration - suggest you edit your question to include more such details. Have a look at the following articles for some guidance. http://blogs.technet.com/b/canitpro/archive/2014/04/02/step-by-step-active-directory-migration-from-windows-server-2003-to-windows-server-2012.aspx ...


3

Dovecot allows you to configure a master user which can be used to access user mailboxes without knowing their passwords. The master user can be used with imapsync (as well as most other IMAP tools) to copy the messages between servers. From the dovecot configuration file on my server: By adding master=yes setting inside a passdb you make the passdb a ...


3

Ugly, but this would work. Except when it doesen't;). Be very careful when specifying the partitions and when replacing the disks try it in am VM beforehand, setup the virtual disks like your hardware an dry run it 1 or 2 times. make a scrub before you start and take a look at the S.M.A.R.T info from the disks. You would not try this with an already ...


3

No, you cannot transfer IP addresses like that in general. You can only transfer IP addresses if you have control over both networks' Internet-wide routing.


3

There's a tool made for this very thing, called the Microsoft Virtual Machine Converter (currently at version 3.0). As to your questions about time and the best way to do this, those are highly variable, environment-specific things you'll have to figure out on your own. Shouldn't be too hard - pick some typical VMs, time their conversions, extrapolate how ...


2

We can't help you with licensing here, but I can offer a couple tips with SQL. You will want to take note of the SQL features you have installed on your SBS 2003 box, and setup the installation the same way on the 2012 machine (features, instance name, etc). You can script out the stored procedures and run them on the new instance, and restore your ...


2

Does /usr/bin/pygrub file really exist on your Dom0? Have you tried to run it without PyGrub? Remove bootloader and add kernel = '/vmlinuz' ramdisk = '/initrd.img' to use host system's kernel. If you haven't configured GRUB on the guest system properly, PyGrub will not be able to boot. Also check this ...


2

You can enable IP forwarding and then do forwarding of the traffic at the IP level (see http://www.debuntu.org/how-to-redirecting-network-traffic-to-a-new-ip-using-iptables/ for an example). I believe this has a benefit over proxying because you maintain the IP address of who is connecting to the website and that's logged properly.


2

I've replicated this way before. It's just a zone transfer, really. I had to do it as part of a migration to new 2008 DC's in preparation for raising the functional level and replacing old hardware. The issue I had with 2003 was ad-integrated DNS not playing nicely. May have simply been because this domain had been an upgrade from NT 4.0 -> win2k -> ...


2

Edit: Please note the below only transfers A records and no other so you would still need to manually input remaining. I've never done the above, but another alternative would be to: export your A records and zones from 2003. Save it - c:\dnsrecords.txt re-importing into Server 2012. Replicate other 2003 settings on 2012 that covers external lookups. ...


2

You need to start from scratch on Office 365 and perform a cutover migration following the detailed step-by-step instructions here. You will need to obtain a valid public SSL certificate and ensure that autodiscover and outlook anywhere (RPC over https) are correctly set up and working. You can test this at http://exrca.com. If you're unable to make this ...


2

TL;DR E-mail servers will keep messages in their queue a few days if they can't be delivered. Normally during a migration, you'd have to change DNS records, but since you're staying with the same server (same IP) there's no need for that. You can simply shutdown the server, install the new one, and you're good to go. The only important thing is that you ...


2

If you add a second domain controller--which doesn't have to be beefy for two users--then yes, you can retain the existing AD accounts. Depending on the version of SBS08 you have, you might even have a copy of Windows server 2008 that came with it. Conversely... You can just create live accounts for yourusers@example.com and let them use those for ...


2

This can be done and I have done that before. You can access a share with a random DNS name pointing to your server even if it is not the Active Directory name of the server. Obviously you will need a small down time to do this. Ultimately, to avoid this kind of issue in the future, you want your user to access file server resources through an abstraction - ...


2

Make your old server a mx backup of the new one. For this you will need to have both servers as MX for your domain, but the old must have a bigger number as priority: example.com. IN MX 10 2.2.2.2 example.com. IN MX 20 1.1.1.1 Then you can add your domain into relay_domains: relay_domains = $mydestination, example.com Important to ...



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