Upgrade of the DHCP server for Windows server 2003-2012

Last Update:2015-06-04 Source: Internet

Author: User

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Several previous articles introduced the construction of DHCP server, backup and restore, and the migration of DHCP server. So today I would like to introduce you or the relevant content, and will use the service backup and migration operations to implement the DHCP server upgrade.

As soon as Microsoft will stop providing support for Windows Server 2003 and Windows Server 2003 R2 on July 14 this year, the most important thing for companies to do is upgrade their servers to ensure data security.

The general ideas about this experiment are as follows:

(1) We want to install a Windows Server 2003 server, install the DHCP components, and configure.

(2) We export the configuration information of the DHCP server on the Win2003 machine.

(3) Install a new DHCP server on Windows Server R2.

(4) Export the configuration information on the new DHCP server.

(5) Modify the configuration file to re-consolidate the configuration information exported by the two new and old DHCP servers into one configuration file.

(6) Run the re-consolidated configuration file on the old DHCP server.

(7) Export all DHCP configuration information on Win2003 machine.

(8) Copy the generated dhcp.txt file to the new DHCP server and import the modified configuration information.

(9) Uninstall the old DHCP server.

In the following experiment, I will demonstrate the upgrade operation of the DHCP server in more detail:

Is the topology of this experiment, in order to ensure high availability of the new DHCP server, to avoid domain controller crashes we will deploy SERVER01 as an additional domain control for Server02. Server01, Server02, DC2003 are all in the domain environment, where server01, Server02 is a domain controller, DC2003 is added to the domain environment. After preparing the lab environment, we will start the DHCP upgrade operation.

First, we have a Windows Server2003 virtual machine ready with its IP configuration as shown:

To install the DHCP component above, click Start-Control Panel-Add or Remove programs such as:

Click Add/Remove Windows components, double-click Network Services (Note: If you directly check the network service will install all of the services), such as;

Locate "Dynamic Host Configuration Protocol (DHCP)" To check it, click "OK",

After completing the wizard, click Finish.

At this point we can see the DHCP in the Start-management tool,

After the DHCP installation is complete, we will create a new scope on the server and set the IP address range that can be leased to the client.

I named this scope test (the name can be arbitrary according to my wishes), click "Next",

We will enter an IP address range for scope assignment, and the address range I assign is as follows:

To exclude the scope of the DHCP server's IP address, click Next,

Add the gateways that specify this scope to be assigned.

Next, click "Yes I want to configure these options now" and click Next,

After the configuration is complete, activate this scope, click "Yes, I want to activate this scope now",

When activation is complete, we close the New Scope Wizard, click Finish,

We perform a backup operation on the DHCP server, such as:

We store the backup file on the local disk and create a new Dhcpbak folder, such as:

After backing up the DHCP server, we will then run the following command on the DC2003 command line "netsh dhcp server dump > c:\win2003dump.txt" To export the configuration information for the 2003 DHCP server. Such as:

Below, we will install a new DHCP server on Server02, add roles and features, determine the server IP, click Next,

Tick the GHCP server, click "Next",

After you install the DHCP server, run the following command on the command line "netsh dhcp server dump > c:\win2012R2dump.txt" To export the configuration information for the 2012DHCP server. Such as:

Next we come to the DC2003 and re-consolidate the DHCP server configuration file changes of 2003 and 2012 into the new Dhcp.bat file, respectively.

Copy the first five rows of data from the Win2003 file, add netsh before each line, and change the add to delete;

The first six rows of data in the win2012 file are copied, Netsh is added to each line, and the IP or computer name needs to be changed to the original DHCP server;

The contents of the consolidated Dhcp.bat file are as follows:

We ran dhcp.bat on the DC2003, and the results were shown as:

Next we run the "netsh dhcp server export c:\dhcp.txt All" command to export all of the DHCP configuration information. Such as:

We can see that the exported configuration file already exists, and we want to copy this configuration file to the new DHCP service, which is Server02, as

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After replication succeeds, we run the Netsh dhcp server import c:\dhcp.txt command on the new DHCP server and import the modified configuration information on Server02. Such as:

Here we come to Server Manager-tool--dhcp, such as:

In Active Directory, the new DHCP server is authorized for operation, and the new DHCP server works.

We want to authorize the new DHCP server. (Note: The DHCP server can be authorized only on domain control),

Next, click Refresh this server, you can see that the DHCP server has been able to work properly. Such as:

Next is the last step, in DC2003 the old DHCP server on the DHCP component Delete, click "OK", at this time also really completed the DHCP server from 2003 to 2012 upgrade. For example:

The above experiment is that we will upgrade the DHCP server from 2003 to 2012 of all processes and procedures, because the picture more space is also longer, thank you for your patience to watch, thank you, but also hope that we can put forward valuable comments or suggestions. ?

Upgrade of the DHCP server for Windows server 2003-2012

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