Showing posts with label Tutorial. Show all posts
Showing posts with label Tutorial. Show all posts

Sunday, 29 May 2011

How to Create Strong Passwords that are Easy to Remember but Hard to Break

How to Create Strong Passwords that are Easy to Remember but Hard to Break

What is password strength?
According to WikiPedia:
Password strength is a measurement of the effectiveness of a password as an authentication credential. Specifically, it estimates how many trials an attacker who does not have direct access to the password would need, on average, to correctly guess it. The strength of a password is a function of length, complexity, and randomness.

Saturday, 28 May 2011

IP Command Line in DOS


IP Command Line in DOS


2011 by Rishi Aggarwal To get to the command prompt in Windows XP go to:
Start, Run and in the empty box type cmd and then hit the enter key


Display Connection Configuration: ipconfig /all


Display DNS Cache Info Configuration: ipconfig /displaydns


Clear DNS Cache: ipconfig /flushdns

Find who Retweeted your tweets & Retweets made by You


Find who Retweeted your tweets & Retweets made by You



Retweet is a new feature recently introduced by twitter. (RT) feature helps user to quickly share information which they find interesting, over to their followers in one click.
Today, I was looking for a way to find out who Retweeted my tweets and just thought off sharing it with our readers too. Check below:

Friday, 27 May 2011

About Windows XP Editions



About Windows XP Editons:-

There are a number of different editions of Windows XP, each of which is designed for
different users and computing devices. The following editions are part of the Windows
family:
■ Windows XP Professional Edition
■ Windows XP Home Edition
■ Windows XP Media Center Edition
■ Windows XP Tablet PC Edition
■ Windows XP 64-Bit Edition

Windows XP Professional Edition:-
Windows XP Professional Edition is intended for computers that are part of a corporate
network, for the majority of computers on small networks, and for home users who
need certain advanced capabilities. Windows XP Professional sets the standard for
desktop performance, security, and reliability.
Windows XP Professional is also the focus of both this book and Exam 70-270: Installing,
Configuring, and Administering Microsoft Windows XP Professional.

Windows XP Home Edition:-
Windows XP Home Edition, which is intended for home users, simplifies many aspects
of networking and file management so that home users have a cleaner experience. In
particular, Windows XP Home Edition has the following limitations compared with
Windows XP Professional:
■ Computers running Windows XP Home Edition cannot join a domain.

■ Windows XP Home Edition does not support the use of NTFS or print permissions.
Instead, Windows XP Home Edition supports only Simple File Sharing. You will
learn more about NTFS permissions in Chapter 8, “Securing Resources with NTFS
Permissions.” You will learn more about print permissions in Chapter 12, “Managing
Printers and Documents.”
■ Windows XP Home Edition does not support the use of dynamic disks, which you
will learn about in Chapter 10, “Managing Data Storage.”
■ Windows XP Home Edition does not support the Encrypting File System (EFS),
which you will learn about in Chapter 10.
■ Windows XP Home Edition supports only one processor, whereas Windows XP
Professional supports two processors.
■ Windows XP Home Edition does not include Internet Information Services.
■ Windows XP Home Edition does not include Remote Desktop.
■ Windows XP Home Edition does not provide Remote Installation Services (RIS)
support (which you will learn about in Chapter 3, “Deploying Windows XP Professional”).
See Also You can learn more about Windows XP Home Edition and find a detailed feature
comparison with Windows XP Professional

Windows XP Media Center Edition:-
The Windows XP Media Center Edition 2004 operating system is available only on new
Media Center PCs—computers with special hardware features that enable users to connect
the computer as an integral part of a home entertainment system. Because of its
special requirements, Media Center PCs running Windows XP Media Center Edition are
available only from Microsoft PC manufacturer partners.
See Also For more information about Windows XP Media Center Edition, 

Windows XP Tablet PC Edition:-
The Windows XP Tablet PC Edition operating system expands on Windows XP Professional,
providing all the features and performance of Windows XP Professional, while
also providing additional capabilities designed to take advantage of a touch-screen
interface: pen input, handwriting recognition, and speech recognition.

Windows XP Tablet PC Edition offers users the efficiency and dependability of Windows
XP Professional. For developers, it offers a rich platform for creating new applications
or extending their current applications to take advantage of Tablet PC
handwriting and speech capabilities.
See Also For more information about Windows XP Tablet PC Edition, 

Windows XP 64-Bit Edition
Microsoft Windows XP 64-Bit Edition, which provides support for the 64-bit computing
platforms, is designed to meet the demands of advanced technical workstation users
who require large amounts of memory and floating point performance in areas such as
mechanical design and analysis, 3D animation, video editing and composition, and scientific
and high-performance computing applications. One of the key differences
between the 64-bit and 32-bit platforms is that the 64-bit platform supports considerably
more system memory—up to 16 GB of physical RAM.

Installation of Windows XP ( With Screen Shots)

Installation of Windows XP ( With Screen Shots)



Preparing for Installation:-


When you install Windows XP Professional, the Windows XP Professional Setup program
allows you to specify how to install and configure the operating system. Preparing
in advance helps you avoid problems during and after installation.


Overview of Preinstallation Tasks:-
Before you start the installation, you should complete the following tasks:
■ Ensure that your hardware meets the requirements for installing Windows XP Professional.
■ Determine whether your hardware is in the Windows Catalog.
■ Decide how you will partition the hard disk on which you will install Windows XP
Professional.
■ Choose a file system for the installation partition.
■ Determine whether your computer will join a domain or a workgroup.
■ Complete a preinstallation checklist.


Windows XP Professional Hardware Requirements:-
Before installing Windows XP Professional, you must determine whether your hardware
meets or exceeds the minimum requirements for installing and operating Windows
XP Professional as shown down


Central processing unit (CPU) -                 Pentium 233 megahertz (MHz) or equivalent.
Memory                                                    64 megabytes (MB) minimum;128 MB recommended; 4          
                                                                 gigabytes (GB) of random access memory (RAM) maximum.
Hard disk space                                        1.5 GB of free disk space for installing Windows XP Professional.        /                                                                You should also have several additional gigabytes of hard disk      
                                                                  space to allow for updates,additional Windows components,
                                                                  applications, and user data.
Networking                                                Network adapter card and a network cable, if necessary.
Display                                                       Video display adapter and monitor with Video Graphics Adapter
                                                                   (VGA) resolution or higher.
Other drives                                                CD-ROM drive, 12X or faster recommended (not required for         
                                                                   installing Windows XP Professional over a network), or DVD
                                                                   drive. High-density 3.5-inch disk drive as drive A, unless the
                                                                  computer supports starting the Setup program from a CD-ROM
                                                                  or DVD drive.
Accessories                                                Keyboard and  or other pointing device.


Now Installation Of Windows XP:-

All versions of Windows XP CD are bootable. In order to boot from CD/DVD-ROM you need to set the boot sequence. Look for the boot sequence under your BIOS setup and make sure that the first boot device is set to CD/DVD-ROM. You can then perform the following steps to install Windows XP:
Step 1 - Start your PC and place your Windows XP CD in your CD/DVD-ROM drive. Your PC should automatically detect the CD and you will get a message saying "Press any key to boot from CD". Soon as computer starts booting from the CD your will get the following screen:
Windows XP Screenshot - Click to enlarge
Step 2 - At this stage it will ask you to press F6 if you want to install a third party Raid or SCSI driver. If you are using a an IDE Hard Drive then you do not need to press F6. If you are using a SCSI or SATA Hard drive then you must press F6 otherwise Windows will not detect your Hard Drive during the installation. Please make sure you have the Raid drivers on a floppy disk. Normally the drivers are supplied on a CD which you can copy to a floppy disk ready to be installed. If you are not sure how to do this then please read your motherboard manuals for more information.
Windows XP Screenshot - Click to enlarge
Step 3 - Press S to Specify that you want to install additional device.
Windows XP Screenshot - Click to enlarge
Step 4 - You will be asked to insert the floppy disk with the Raid or SCSI drivers. Press enter after you have inserted the disk.
Windows XP Screenshot - Click to enlarge
Step 5 - You will see a list of Raid drivers for your HDD. Select the correct driver for your device and press enter.
Windows XP Screenshot - Click to enlarge
Step 6 - You will then get a Windows XP Professional Setup screen. You have the option to do a new Windows install, Repair previous install or quit. Since we are doing a new install we just press Enter to continue.
Windows XP Screenshot - Click to enlarge
Step 7 - You will be presented with the End User Licensing Agreement. Press F8 to accept and continue
Windows XP Screenshot - Click to enlarge
Step 8 - This step is very important. Here we will create the partition where Windows will be installed. If you have a brand new unformatted drive you will get a screen similar to below. In our case the drive size is 8190MB. We can choose to install Windows in this drive without creating a partition, hence use the entire size of the drive. If you wish to do this you can just press enter and Windows will automatically partition and format the drive as one large drive.
However for this demonstration I will create two partition. The first partition will be 6000MB (C: drive) and second partition would be 2180MB (E: drive). By creating two partition we can have one which stores Windows and Applications and the other which stores our data. So in the future if anything goes wrong with our Windows install such as virus or spyware we can re-install Windows on C: drive and our data on E: drive will not be touched. Please note you can choose whatever size partition your like. For example if you have 500GB hard drive you can have two partition of 250GB each.
Press C to create a partition.
Windows XP Screenshot - Click to enlarge
Step 8 - Windows will show the total size of the hard drive and ask you how much you want to allocate for the partition you are about to create. I will choose 6000MB. You will then get the screen below. Notice it shows C: Partition 1 followed by the size 6000 MB. This indicates the partition has been created. We still have an unpartitioned space of 2189MB. Next highlight the unpartitioned space by pressing down the arrow key. Then press C to create another partition. You will see the total space available for the new partition. Just choose all the space left over, in our case 2180MB.
Windows XP Screenshot - Click to enlarge
Step 9 - Now you will see both partition listed. Partition 1 (C: Drive) 6000MB and Partition 2 (E: Drive) 2180MB. You will also have 8MB of unpartitioned space. Don't worry about that. Just leave it how its is. Windows normally has some unpartitioned space. You might wonder what happened to D: drive. Windows has automatically allocated D: drive to CD/DVD-ROM.
Select Partition 1 (C: Drive) and press Enter.
Windows XP Screenshot - Click to enlarge
Step 10 - Choose format the partition using NTFS file system.This is the recommended file system. If the hard drive has been formatted before then you can choose quick NTFS format. We chose NTFS because it offers many security features, supports larger drive size, and bigger size files.
Windows XP Screenshot - Click to enlarge
Windows will now start formatting drive C: and start copying setup files as shown on the two images below :
Windows XP Screenshot - Click to enlarge
Windows XP Screenshot - Click to enlarge
Step 11 - After the setup has completed copying the files the computer will restart. Leave the XP CD in the drive but this time DO NOT press any key when the message "Press any key to boot from CD" is displayed. In few seconds setup will continue. Windows XP Setup wizard will guide you through the setup process of gathering information about your computer.
Windows XP Screenshot - Click to enlarge
Step 12 - Choose your region and language.
Windows XP Screenshot - Click to enlarge
Step 13 - Type in your name and organization.
Windows XP Screenshot - Click to enlarge
Step 14. Enter your product key.
Windows XP Screenshot - Click to enlarge
Step 15 - Name the computer, and enter an Administrator password. Don't forget to write down your Administrator password.
Windows XP Screenshot - Click to enlarge
Step 16 - Enter the correct date, time and choose your time zone.
Windows XP Screenshot - Click to enlarge
Step 17 - For the network setting choose typical and press next.
Windows XP Screenshot - Click to enlarge
Step 18 - Choose workgroup or domain name. If you are not a member of a domain then leave the default settings and press next. Windows will restart again and adjust the display.
Windows XP Screenshot - Click to enlarge
Step 19 - Finally Windows will start and present you with a Welcome screen. Click next to continue.
Windows XP Screenshot - Click to enlarge
Step 20 - Choose 'help protect my PC by turning on automatic updates now' and press next.
Windows XP Screenshot - Click to enlarge
Step 21 - Will this computer connect to the internet directly, or through a network? If you are connected to a router or LAN then choose: 'Yes, this computer will connect through a local area network or home network'. If you have dial up modem choose: 'No, this computer will connect directly to the internet'. Then click Next.
Windows XP Screenshot - Click to enlarge
Step 22 - Ready to activate Windows? Choose yes if you wish to active Windows over the internet now. Choose no if you want to activate Windows at a later stage.
Windows XP Screenshot - Click to enlarge
Step 23 - Add users that will sign on to this computer and click next.
Windows XP Screenshot - Click to enlarge
Step 24 - You will get a Thank you screen to confirm setup is complete. Click finish.
Windows XP Screenshot - Click to enlarge
Step 25. Log in, to your PC for the first time.
Windows XP Screenshot - Click to enlarge
Step 26 - You now need to check the device manager to confirm that all the drivers has been loaded or if there are any conflicts. From the start menu select Start -> Settings -> Control Panel. Click on the System icon and then from the System Properties window select the Hardware tab, then click on Device Manager.
Windows XP Screenshot - Click to enlarge
If there are any yellow exclamation mark "!" next to any of the listed device, it means that no drivers or incorrect drivers has been loaded for that device. In our case we have a Video Controller (VGA card) which has no drivers installed.
Your hardware should come with manufacturer supplied drivers. You need to install these drivers using the automatic setup program provided by the manufacturer or you need to manually install these drivers. If you do not have the drivers, check the manufacturers website to download them.
To install a driver manually use the following procedure:
(a) From the device manager double click on the device containing the exclamation mark.
(b) This would open a device properties window.
(c) Click on the Driver tab.
(d) Click Update Driver button. The Wizard for updating device driver pops up as shown below:
Windows XP Screenshot - Click to enlarge
You now get two options. The first option provides an automatic search for the required driver. The second option allows you to specify the location of the driver. If you don't know the location of the driver choose the automatic search which would find the required driver from the manufacturer supplied CD or Floppy disk. Windows would install the required driver and may ask you to restart the system for the changes to take affect. Use this procedure to install drivers for all the devices that contain an exclamation mark. Windows is completely setup when there are no more exclamation marks in the device manager.