The automation and dematerialization of monetary exchanges are not objectives per se, but are solely means to improve the productivity of financial institutions. In this regard, an overabundance of standards, and sometimes their competition, may constitute a barrier to the establishment of electronic commerce. Even if some manufacturers think they can profit from this situation, […]
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How Legal Wire tapping Works
CALEA requires that communications providers allow law enforcement officials to be able to listen in on phone conversations and get information about those phone calls, but only when the law enforcement agency has gotten approval for the tap.
The law enforcement agency goes before a judge and presents reasons a wiretap is […]
Throughout the history of the United States, one of the greatest political tensions has been that which balances personal privacy against the need for law enforcement to protect individuals and the country as a whole.
That tension has been with us from the very earliest days of the Republic. The Founding Fathers were extremely cognizant of […]
The introduction of SQL Server 2000 enables us to have multiple instances of SQL Server running on a single machine. In the past we only had one instance of SQL Server, which in SQL Server 2000 is called the Default instance. Now we can have as many named instances as we want. Microsoft has tested […]
The first screen (Welcome) of the wizard appears. What you can do here is definitely limited. If you are sure you want to continue with the installation, click Next.
The second screen (Computer Name).
The third screen you see (Installation Selection).
After you have completed this installation, if you want to modify the installation or remove it, you […]
Although the Internet protocol is the second component of the TCP/IP acronym, it is perhaps the more important of the two. IP is the basic protocol in the suite that provides the information used for getting packets from one place to another. IP provides a connectionless, unacknowledged network service, and also provides the addressing mechanism […]
IP protocol is a protocol that can be used to make a best-effort attempt to get a packet from one host to another, even when the hosts are on different networks. The Transmission Control Protocol uses IP but adds functionality that makes TCP a reliable, connection- oriented protocol. Whereas IP doesn’t require any acknowledgment that […]
Because it is usually implemented in a read-only memory (ROM) chip, the BOOTP protocol client is a simple, concise bit of code. The exchange of UDP messages between the client and the BOOTP server consists of a series of requests and replies. The same packet format is used for both types of messages with an […]
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Similar to BOOTP, DHCP uses a request/reply mechanism, and the packet format is almost the same for both to provide for backward compatibility. The layout of the packet used by DHCP looks very much like the layout of the BOOTP packet, with a few exceptions. The first 11 fields are the same. However, the last […]
Installing a DHCP server on Windows 2000 or Windows 2003 Servers is just as simple as most application installs. However, you’ll need to have some information ready before you begin the installation. You will need to know the range of addresses that the server will administer and lease to clients. If you have any servers […]
The Windows 2000/2003 DHCP servers provide support for BOOTP clients. The Default BOOTP user class of options is used to configure the information that is supplied to these clients. Although standard BOOTP servers require that the server be configured in advance with a table of client hardware addresses and corresponding IP addresses, Windows 2000/Server 2003 […]
Many options that can be used for BOOTP and DHCP clients were discussed. The Windows 2000/2003 DHCP service enables you to configure which options will be offered to clients of the service. To configure the options, expand the MMC tree of DHCP servers to locate the server you want to manage. Click that server to […]
WINS is Microsoft’s NetBIOS Name Server (NBNS) developed according to the details set forth in RFCs 1001 and 1002, and is based on a client/server architecture. Only Windows server operating systems can run the WINS service, and the server does not have to be a domain controller. In the traditional DNS server that originated on […]
Objects and Attributes
For the most part, an object is nothing more than a collection of specific pieces of information about the object. For example, an object that represents a user account contains attributes that hold information about the particular user. When you create user accounts in the Active Directory, you supply the same information that […]
A logical map of the network shows the relationships between components and the flow of information through the network. A physical map of the network tries to approximate on paper a representation of how each component of the network is connected to the network. For example, a logical map for a Windows network might show […]
When planning the domain layout for your organization, you should consider the type of management control (centralized versus decentralized), security policies, and the network infrastructure. When deciding whether to use many or fewer domains as the basis for dividing resources and users, consider what happens on the domain level. Each domain controller in a domain […]