The arguments in favor of the Internet sound, at a decade interval, like an echo of those that were previously formulated in praise of the Minitel. This passion for information technology is displayed in a context where ambitious growth rates are not physically sustainable, due to market saturation in rich countries, the progressive depletion of […]
JEPI (Joint Electronic Payment Initiative) is a joint initiative of the W3C and the CommerceNet consortium. The purpose is to allow a server to negotiate, with a client, the payment protocol advantageous to both parties. Membership of the JEPI project includes several suppliers of solutions for secure payments (Cybercash, GCTech), software (Microsof, IBM, OpenMarket), services […]
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 […]
Creating a New User to Establish a Connection
Because this is a brand-new Web site, we do not have any users who can access our site. Remember when we created the SQLSpyNetUser?
Now we need to create a new user who has only limited rights. We don’t want anybody hacking the site, now do we?
Create a user […]
Shrinking a transaction log is a little different from shrinking a data file. The main difference is when the process occurs.
When a data file is shrunk, the task is performed almost immediately, whereas with a transaction log it is not. The log file is marked, so SQL Server 2000 knows that it needs to be […]
It gives me a chance to rave about some of the cool new functionality in SQL Server 2000. Plus, I can show you some of the things that are not totally relevant to our application but that you definitely will want to know as you continue developing and maintaining SQL Server.
Although the enhancements to the […]
As you move into a multi-user environment, security, user, and resource management will become key to the performance and integrity of your application. Some of these security features are available on Windows 2000 only.
Understanding Kerberos and Security Delegation
Unfortunately, we cannot take advantage of these new enhancements. We are not running Windows 2000—maybe that’s a good […]
To finish the development of our Spy Net application, we must install a Web server of some sort onto our machines. We must set up our machine as a Web server so that we can leverage the deployment of the interface. The installation of Personal Web Server (PWS) for Windows 98 is covered in this […]
Although based on the simple BOOTP protocol, the DHCP protocol client/server exchange is a little more complicated. Both sides communicate using a set of messages, as listed here:
DHCPDISCOVER—The client broadcasts this message to locate DHCP servers.
DHCPOFFER—The server uses this message type to offer a set of configuration parameters to the client.
DHCPREQUEST—A client can use this […]
Creating an Address Scope
After you have authorized a server on the network, you can create a scope of addresses that the DHCP server can administer to clients. From the MMC utility, click once on the server you want to administer, and then select New Scope from the Action menu. The New Scope Wizard pops up. […]
Next the wizard asks you where the database files for the Active Directory should be stored. It is suggested that you put these files on a disk other than the one that holds the operating system. This increases performance, because both the operating system and the Active Directory, in a larger network, will probably be […]
Many of the TCP/IP utilities that are used for troubleshooting can be employed when trying to diagnose and fix problems having to do with NFS. For example, if a remote file system suddenly becomes unavailable, it only makes sense to first determine whether the remote server is still functioning. You can do this quickly by […]
HTTP Mechanics
As previously indicated, HTTP is a client/server protocol. The client application (such as a browser) sends a request to the server that hosts the information the user needs (typically a Web page). The server sends back a response. The data object the client requests is identified by a Uniform Resource Identifier (URI), such as […]
http, web design, programming
DNS
DNS is the standard method used on the Internet to resolve host IP addresses to friendly names that humans find easier to remember. Microsoft NT 4.0/2000/2003 provide a DNS server that is based on RFC 1053 and can be used by both Microsoft clients and other clients that have been created based on this standard. […]
Mobile technologies are not new; it has been possible for many years to access the Internet for e-mail using a laptop connected via a modem. With the ongoing convergence of devices, we are now seeing a range of hybrid devices combining PDA features such as calendar, address list, task list and office tools with phone […]