WinDows2003 for routing sharing Internet | Configuring NAT server | Division magician Diskpart_ Network Tutorial

Win2003 for routing LAN sharing multiple export internet
First, the case

The computer center of the university has a total of 240 computer rooms, has been connected to the local area network, to access the school resources through the campus network interface, and access to external resources through the ADSL interface.

Second, solve

Windows XP and Windows 2003 come with ADSL broadband dialer, which can be configured with a little configuration of the Windows 2003 Routing and Remote Access program.

1, the premise

Computer One (configuration is not very high, as long as you can install Windows 2003 on the line), installed with the Windows2003 operating system, 3 network card, network card 1: Connect the internal LAN, ip:192.168.1.1, subnet mask: 255.255.255.0, Gateway: null, DNS: null; network card 2: Connection ADSL,IP: Automatic acquisition, DNS: Automatic acquisition, network card 3: Connect Campus Network, ip:202.203.230.2, subnet mask: 255.255.255.0, Gateway: 202.203.230.1,dns:202.203.220.2 (assuming the campus network segment is between 202.203.220.0-202.203.230.0, DNS server is 202.203.220.2);

2, server Configuration

Step1. Click Start-Administrative Tools-Routing and Remote Access, start the Configuration Wizard, select the local server, click Actions-Configure and Enable Routing and Remote Access (figure I). Click Next, select Custom Configuration-Next, check demand-dial connections (used by branch office routing), and LAN routing-next-finish to start Routing and Remote Access.

STEP2. Select "Network Interface", click Action-New demand-dial interface-Next-Next, select Use PPP on Ethernet (PPPoE) connection-next-Next, eject the protocol and security option, remove all hooks, and click Next. " Enter ADSL account number and password, "Next"-"finish".

Step3. Create a new batch of processing file Route.bat and add its shortcuts to start-Programs-Start, edit the Route.bat content as follows:

cd\
Route Delete 0.0.0.0
Route add 192.168.1.0 Mask 255.255.240.0 192.168.1.1
Route add 202.203.220.0 Mask 255.255.240.0 202.203.230.1
Route add 202.203.221.0 Mask 255.255.255.0 202.203.230.1
(The IP section of the campus network is added on its own)
Route add 202.203.230.0 Mask 255.255.255.0 202.203.230.1

3. Client Configuration

TCP/IP configuration is as follows: ip:192.168.1.x, subnet mask: 255.255.255.0, Gateway: 192.168.1.1, preferred DNS server: Local ADSL domain name server IP (can be queried to the ADSL provider, such as Kunming Telecom is: 202.98.160.68), alternate DNS server: 202.203.220.2. The DNS settings here are critical, and some people mistakenly set DNS to: 192.168.1.1.

Third, summary

Using this method to achieve broadband sharing, can save the cost of purchasing routers, almost no server resources, and as long as the network card to the server, you can arbitrarily expand the number of clients or external exports. My unit more than 400 computers use this method to share a 2MADSL broadband will have a year, the operation is very stable, each computer is like in the independent use of a 2MADSL in the Internet, while you can quickly browse the campus resources to achieve online office, why not!
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Configuring the NAT server in Win 2003

Profile

This article describes how to configure a network address translation (NAT) server by using Windows Server 2003来. The Windows Server 2003 Routing and Remote Access service includes the NAT routing protocol. If you install and configure the NAT routing protocol on a server that is running Routing and Remote Access, internal network clients that use the private Internet Protocol (IP) address can access the Internet through the external interface of the NAT server.

How to configure Routing and Remote Access NAT servers

When an internal network client sends a request to connect to the Internet, the NAT protocol driver intercepts the request and forwards it to the destination Internet server. All requests look like external IP addresses from the NAT server. This hides your internal IP address configuration.

To configure the Routing and Remote Access NAT server:

From the Administrative Tools menu, select Routing and Remote Access.

In the Routing and Remote Access MMC, expand your server name, where the server name is the name of the server you want to configure, and then expand the IP route in the left pane.

Select General, and then select New routing Protocol.

Click the nat/Basic Firewall check box to select it, and then point to OK.

Right-click the nat/Basic Firewall in the left pane, and then click New Interface.

Click the interface that represents the internal network interface, and then click OK.

In the network address translation attribute, click Private interface to connect to private network, and then click OK.

Right-click the nat/Basic Firewall in the left pane, and then point to the new interface.

Click the interface that represents the external network interface, and then point to OK.

In the network address translation attribute, click Public interface to connect to the Internet.

Click the Enable NAT on this interface check box to select it and point to OK.

The NAT server can automatically assign IP addresses to internal network clients. You may need to use this feature if you do not have a DHCP server that has address information assigned to clients on the internal network.

How to configure the Routing and Remote Access NAT server to assign IP addresses and perform proxy DNS queries the NAT server can also perform domain Name System (DNS) queries on behalf of the NAT client. The Routing and Remote access NAT server resolves the Internet host name that is included in the client request, and then forwards the IP address to the client
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Division Magician in Win 2003: Diskpart

As you may know, under Windows Server 2003, the normal version of the partition magician is not running, and Windows built-in command-line tool DiskPart is capable of doing most of the partition magician's work, and it is very powerful. When you enter DiskPart, you will see a private prompt, diskpart> (Note: This is not a path), as shown in the picture, where you can enter a number of related and also child commands that are specific to it. In this carefully designed case, you can see how DiskPart is expanding the partitions without destroying the data, which undoubtedly provides us with a whole new set of ways to manage our partitions.

Step one: Open the DiskPart integrated environment

Boot to Safe Mode with command prompt, enter DiskPart.

Next, enter the list disk to display the installed hard drive, as you can see from the figure, only one hard drive, shown as Disk 0 (if two hard drives are installed, the 2nd hard disk will appear as Disk 1). Enter "Select Disk 0" to select the hard drive (or set the Focus property for the hard drive). Then enter the list partition display partition, which obviously has two primary partitions, two extended partitions.

Step two: Delete Partition 3

Enter select partition 3 to have the focus attribute on the partition 3 (5004MB), and then enter the delete partition to delete the partition. Compare the values after the 1th, 22 list partition commands in the figure, and it is easy to see that the original partition 3 has been deleted.

Tip: After you enter select Partition 3, if you enter the list Partition command, you can see a * number before the partition 3. Any hard disk or partition with focus attributes has a * number before it can make the user glance at the current action object.

Step Three: Partition expansion

Enter select partition 1 to have the focus property, and then enter extend, and the last allocation space vacated by the deletion of the partition is automatically added to the 1th partition. If you enter list partition to see the capacity changes of partition 1, compare the values of the 1th and 32 list partition commands in Figure 1 to see this.

Note: When you extend a partition with focus to the nearest unallocated space, for normal partitions, unallocated space must be on the same disk and must be adjacent to the partition with focus.

If the partition to be expanded is formatted as NTFS, no data is lost when it is enlarged, and if the file system is not NTFS, the command fails, but no changes are made to the partition and data is not corrupted.

DiskPart cannot extend the current boot partition or the partition that contains the paging file. As you can see from the diagram, there are two primary partitions in My computer, and partition 5 is the active partition. Otherwise, you cannot enlarge the partition 1.

Syntax for the Extend command:

Extend [size=n]

Parameter Description: Size=n represents the amount of space (in megabytes) that is added to the current partition, and if no size is specified, the disk expands to occupy all of the nearest contiguous unallocated space.

Regardless of the changes made to the hard disk partition, this includes creating, deleting, expanding, and so on, without having to restart the computer to take effect (this is not what the Zone Magician can do), but in "My Computer" (DiskPart is working in a command prompt window, you can open My computer from the desktop at the same time) You can't see these partitions, but why, you don't have the drive letter (that is, the letter) specified for it, the first partition specifies the letter as an example.

The 1th partition has the Focus property first, and then the command Assign,diskpart is automatically assigned a letter. Of course, you can use the command assign letter=x to manually specify that when you specify it manually, it cannot be the same as the existing letter. After this process, you can look up these partitions in my computer.

Step four: Set the partition 1 as the active partition

First Use Select Parttition 1 to have the Focus property and then enter the command active. Finally enter exit, exit DiskPart integrated environment, let the computer automatically restart. Note, however, that in the "My Computer", partition 1 must have a full operating system, or the computer will not start properly.

If used DiskPart, you will feel that its design is in line with people's thinking habits, is generally the first to specify focus, and then to operate, in the course of operation can also display the status of the partition at any time to master progress. Input help to see all of the subcommand, when you enter a fault, it will also automatically lists the list of child commands and a brief description to guide you to the straight. In addition, after installing Windows 2003, the most familiar partition magician (not server version) is not functioning properly, using DiskPart is a good choice.

As mentioned earlier, the focus must be specified before any operation under DiskPart, that is, to indicate which object is to be manipulated, which makes the operational logic clear, but on the other hand, if the focus is accidentally executed with a destructive command, such as deleting a partition, it can cause irreparable damage. Therefore, always use the list command to view the status of each partition. The focus partition has an asterisk (*) flag before it.
To increase the capacity of the partition

Note that at this point the D disk is 855MB, and now we're going to add 50MB to it. Click start → programs → attachments → command prompt, and in the open window, enter "Diskpart", "List volume", "Select Volume 2", "Extend size=50" four commands.

Where the "Diskpart" command is used to invoke the DOS Disk Management program, "diskpart/?" command can see the Chinese help for this command under DOS. The "List Volume" is used to display the details of all the disks on the system, so that you know the volume number of the partition you want to expand.

Here you can see that the D disk is "2"; The Select Volume 2 command is used to select a volume, where the volume 2 is selected according to the prompts from the previous step; The Extend size=50 "is used to increase the volume of D disk space, which is of course the free space divided." From the result of the command execution, "DiskPart successfully expanded the volume," We have succeeded in expanding space for D, as shown in the figure.

Finally, in the Disk Management window, select the remaining free space, click the "operations → all tasks → new logical drive" command, according to the prompts for the space assigned drive letter and format operation.