Monday, March 30, 2009

Boot your Computer Faster

Press start->run then type msconfig and press enter.Go to the startup tab. Here you will see a list of startup items. These are all the programs that automatically start when you boot your PC. It is these that slow down the boot up process.So uncheck all the unwanted items like ms-office, messengers other utilities that u may not need at startup). Don't uncheck your antivirus software.Restart your Pc to and see for yourself, your pc will now boot faster

A great new feature in Microsoft Windows XP is the ability to do a boot defragment. This places all boot files next to each other on the disk to allow for faster booting. By default this option is enabled, but on some systems it is not, so below is the information on how to turn it on:

Go to Start Menu and Click Run
Type in regedit then click ok
Find "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dfrg\BootOpt imizeFunction"
Select "Enable" from the list on the right
Right on it and select "Modify"
Change the value to Y .
Reboot your Pc and see the change yourself.

Monday, March 23, 2009

Server in Hardware

Hardware requirements for servers vary, depending on the server application. Absolute CPU speed is not usually as critical to a server as it is to a desktop machine. Servers' duties to provide service to many users over a network lead to different requirements like fast network connections and high I/O throughput. Since servers are usually accessed over a network they may run in headless mode without a monitor or input device. Processes which are not needed for the server's function are not used. Many servers do not have a graphical user interface (GUI) as it is unnecessary and consumes resources that could be allocated elsewhere. Similarly, audio and USB interfaces may be omitted.

Servers often run for long periods without interruption and availability must often be very high, making hardware reliability and durability extremely important. Although servers can be built from commodity computer parts, mission-critical servers use specialized hardware with low failure rates in order to maximize uptime.

For example, servers may incorporate faster, higher-capacity hard drives, larger computer fans or water cooling to help remove heat, and uninterruptible power supplies that ensure the servers continue to function in the event of a power failure. These components offer higher performance and reliability at a correspondingly higher price. Hardware redundancy—installing more than one instance of modules such as power supplies and hard disks arranged so that if one fails another is automatically available—is widely used. ECC memory devices which detect and correct errors are used; non-ECC memory can cause data corruption

Monday, March 16, 2009

FTP Server -File Transfer Protocol

File Transfer Protocol (FTP) is a network protocol used to transfer data from one computer to another through a network such as the Internet.FTP is a file transfer protocol for exchanging and manipulating files over a TCP computer network. An FTP client may connect to an FTP server to manipulate files on that server.

In active mode, the FTP client opens a dynamic port, sends the FTP server the dynamic port number on which it is listening over the control stream and waits for a connection from the FTP server. When the FTP server initiates the data connection to the FTP client it binds the source port to port 20 on the FTP server.

In passive mode, the FTP server opens a dynamic port, sends the FTP client the server's IP address to connect to and the port on which it is listening (a 16-bit value broken into a high and low byte, as explained above) over the control stream and waits for a connection from the FTP client. In this case, the FTP client binds the source port of the connection to a dynamic port.

Monday, March 09, 2009

Adaptive Server Enterprise

Adaptive Server Enterprise (ASE) is Sybase Corporation's flagship enterprise-class relational database management system product. ASE is predominantly used on the UNIX platform but is also available for Windows.

Originally created for UNIX platforms in 1987, Sybase Corporation's primary relational database management system product was initially marketed under the name Sybase SQL Server. In 1988, SQL Server for OS/2 was co-developed for the PC by Sybase, Microsoft, and Ashton-Tate. Ashton-Tate divested its interest and Microsoft became the lead partner after porting SQL Server to Windows NT.

Microsoft and Sybase sold and supported the product through version 4.21. In 1993 the co-development licensing agreement between Microsoft and Sybase ended and the companies parted ways while continuing to develop their respective versions of the software.

In 1995, Sybase released SQL Server 11.0. Starting with version 11.5, released in 1996, Sybase moved to differentiate its product from Microsoft SQL Server by renaming it to Adaptive Server Enterprise.

Sybase provides native low-level programming interfaces to its database server which uses a protocol called Tabular Data Stream. Prior to version 10, DBLIB (Data Base Library) was used. Version 10 and onwards uses, CTLIB (Client Library).

Monday, March 02, 2009

SQL Server Express

Microsoft SQL Server Express is the freely-downloadable and distributable version of Microsoft's SQL Server relational database management system. It offers a database solution specifically targeted for embedded and smaller-scale applications. Unlike its predecessor, MSDE, there is no concurrent workload governor which “limits performance if the database engine receives more work than is typical of a small number of users." It does, however, have a number of technical restrictions which make it undesirable for large-scale deployments, including:

* Maximum database size of 4 GB per database (compared to 2 GB in the former MSDE). The 4 GB limit is per database (log files excluded) and can be extended in some scenarios through the use of multiple interconnected databases.
* Hardware utilization limits:
o Single physical CPU, multiple cores
o 1 GB of RAM (runs on any size RAM system, but uses only 1 GB)
* Absence of SQL Server Agent Service

Although its predecessor, MSDE, was virtually devoid of basic GUI management tools, SQL Server Express includes several GUI tools for database management. Among these tools are:

* SQL Server Management Studio Express
* SQL Server Configuration Manager
* SQL Server Surface Area Configuration tool
* SQL Server Business Intelligence Development Studio.