Wednesday, July 8, 2009

ফেসবুক-এর ষ্ট্যাটাস; সামাজিক ষ্ট্যাটাসের চেয়ে যে ষ্ট্যাটাস নিয়ে আমরা বেশি চিন্তিত



ফেসবুকের বুকে একটা জনপ্রিয় অংশ হচ্ছে,এর ষ্ট্যাটাস। প্রতিদিন-ই অজস্র ষ্ট্যাটাস লেখা হয় ফেসবুকে। বিচিত্র ধরণের এই ষ্ট্যাটাস।
কেউ তার ব্যাক্তিগত খবর জানচ্ছেন। কেউ সামাজিক। কেউবা রাষ্ট্রীয় খবরাখবর।
আবার অতি আপডেটেট লোকজন জানান আর্ন্তজাতিক খবর।
খুব-ই ভালো এবং তথ্যবহুল এই ষ্ট্যাটাস কালচার। অনেক কিছু জানা যায়।
তবে

Monday, May 11, 2009

To configure TCP/IP for automatic addressing

1. Open Network Connections.
2. Right-click the network connection that you want to configure, and then click Properties.
3. On the General tab (for a local area connection) or the Networking tab (all other connections), click Internet Protocol (TCP/IP), and then click Properties.
4. Click Obtain an IP address automatically, and then click OK.

Notes

* To open Network Connections, click Start, click Control Panel, and then double-click Network Connections.
* You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings might also prevent you from completing this procedure.
* Windows XP uses Automatic Private IP Addressing (APIPA) to automate Internet Protocol (IP) configuration of network connections.

By default, the computer first tries to contact a DHCP server on the network and dynamically obtain configuration for each installed network connection, as follows:

o If a DHCP server is reached and leased configuration is successful, TCP/IP configuration is completed.
o If a DHCP server is not reached after approximately 60 seconds or leased configuration fails, the computer uses the setting on the Alternate Configuration tab to determine whether to use APIPA for automatic TCP/IP configuration or to configure TCP/IP with the alternate configuration. When APIPA is used, Windows XP uses an address in the APIPA IP address range (169.254.0.1 through 169.254.255.254) and the subnet mask is set to 255.255.0.0.The range of IP addresses (from 169.254.0.1 through 169.254.255.254) used for APIPA is reserved by the Internet Assigned Numbers Authority (IANA). Any IP addresses within this range are not used on the Internet.

To disable automatic address configuration

1. Open Registry Editor.

Caution

* Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer. You can also use the Last Known Good Configuration startup option if problems are encountered after manual changes have been applied.
1. In Registry Editor, navigate to the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Tcpip\Parameters

3. Create the following entry:

IPAutoconfigurationEnabled: REG_DWORD

4. Assign a value of 0 to disable Automatic Private IP Addressing (APIPA) support.

Notes

* To open Registry Editor, click Start, click Run, type regedit, and then click OK.
* You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings might also prevent you from completing this procedure.
* If the IPAutoconfigurationEnabled entry is not present, a default value of 1 is assumed, which indicates that APIPA is used.

To specify disconnect times

You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings might also prevent you from completing this procedure.

1. Open Phone and Modem Options in Control Panel.
2. On the Modems tab, click the modem you want to configure, then click Properties.
3. Click the Advanced tab, and then click Change Default Preferences.
4. On the General tab, under Call preferences:

To


Do this

Automatically disconnect when a connection is not used for a specified time.


Select the Disconnect a call if idle for more than check box, and then type the number of minutes the modem should wait before disconnecting.

Change the time allowed to make a new connection.


Type the number of seconds in Cancel the call if not connected within.

Notes

* To open Phone and Modem Options, click Start, click Control Panel, and then double-click Phone and Modem Options.
* Note that these are the default settings. If these parameters are specified by an application program, the program's settings will take precedence.If you are using a network connection, the disconnect time is determined by the redialing options for the network connection, rather than by the setting in the modem's properties. For information about configuring a connection, click Related Topics.

To specify what Windows does if the system stops unexpectedly

You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings might also prevent you from completing this procedure.

1. Open System in Control Panel.
2. On the Advanced tab, under Startup and Recovery, click Settings.
3. Under System Failure, select the check boxes that correspond to the actions you want Windows to perform if a Stop error occurs:
* Write an event to the system log specifies that event information will be recorded in the system log.
* Send an administrative alert specifies that your system administrator will be notified.
* Automatically reboot specifies that Windows will automatically restart your computer.
4. Under Write Debugging Information, choose the type of information you want Windows to record when the system stops unexpectedly:
* Small Memory Dump records the smallest amount of information that will help identify the problem. This option requires a paging file of at least 2 MB on the boot volume of your computer and specifies that Windows will create a new file each time the system stops unexpectedly. A history of these files is stored in the directory listed under Small Dump Directory.
* Kernel Memory Dump records only kernel memory, which speeds up the process of recording information in a log when the system stops unexpectedly. Depending on the amount of RAM in your computer, you must have 50 MB to 800 MB available for the paging file on the boot volume. The file is stored in the directory listed under Dump File.
* Complete Memory Dump records the entire contents of system memory when the system stops unexpectedly. If you choose this option you must have a paging file on the boot volume large enough to hold all of the physical RAM plus one megabyte (MB). The file is stored in the directory listed under Dump File.

Notes

* To open System, click Start, click Control Panel, and then double-click System.
* You must have at least a 2-MB paging file on the computer's boot volume if you select Write an event to the system log or Send an administrative alert.
* If you choose either Kernel Memory Dump or Complete Memory Dump and select the Overwrite any existing file check box, Windows always writes to the same file name. To save individual dump files, clear the Overwrite any existing file check box and change the file name after each Stop error.
* You can save some memory if you clear the Write an event to the system log and Send an administrative alert check boxes. The memory saved depends on the computer, but typically about 60 KB to 70 KB are required by these features.
* If you contact Microsoft Product Support Services about a Stop error, they might ask for the system-memory dump file generated by the Write Debugging Information option.

Tuesday, April 21, 2009

Deleting A String From Firefox's about:config Page .

If you are looking for a solution about deleting any string or values from Mozilla Firefox about:config Page, you are in the right place. Let me tell ya the procedure...

1. Close firefox (so not to mess it up even more).
2. Go into your profile page "%AppData%\Mozilla\Firefox\Profiles\xxxxxxxx.default\" the x's stand for a randomly generated code for every profile.
3. Open the file "prefs.js" in a text editor.
4. And just use the find tool and enter the title of the string. (not the whole title just a part if you want) and just erase that part.

more simply-
1. Click Start > Run and type %AppData%\Mozilla\Firefox\Profiles
2. Open the folder and find prefs.js
3. Open the file "prefs.js" in a text editor.
4. And just use the find tool and enter the title of the string. (not the whole title just a part if you want) and just erase that part.

(close firefox before doing so....)

Thats it.

Ramdisk for Windows Vista/XP/2000.

Ramdisk or RAM-Disk is a virtual hard drive based on software abstraction that treats a segment of random access memory (RAM) as secondary storage which is similar to hard disks, except with advantage that ramdisk is a lot faster and access time is greatly improved. However there is one downside for Ramdisk, it’s volatile. Contents in Ramdisk is stored in computer RAM, which will be lost when the power of computer is switched off.

With these benefits and limit, ramdisk can be used to store frequently accessed yet less important temporary data to speed up the system performance, such as swap space for virtual memory , temporary files used for programs such as Internet Explorer, BT client, P2P eMule, compression utility, translation software, frequently accessed data from a database or used to hold uncompressed programs for short periods. From privacy point of view, Ramdisk is also a working drive for decrypted version of encrypted document, as all trace of the data will be wiped and deleted once power off.

There are plenty of Ramdisk driver and software available, such as RamDisk9xME, RAMDiskXP, RAMDiskSE and RAMDiskVE from Cenatek, RamDisk and RamDisk Plus from SuperSpeed, RAMDisk Enterprise Lite and Full version plus 64 MB limited free RAMDisk based on Microsoft Ramdisk below from QSoft, and Ramdisk.sys driver for Windows 2000 from Microsoft published under KB257405. However, most of these Ramdisk drivers either is not free, or limit in its functionality especially on the size on RAM-disk. Some not even support Windows Vista.

The following freeware RRamdisk.sys, originally written by Gavotte based on Microsoft’s Ramdisk.sys, and later being added a GUI interface by lyh728 is not only free to use, it also stable, doesn’t have size limitation, supports popular FAT16,FAT32, NTFS filesystems, and supports Windows 2000 operating system and above including Vista.

Friday, April 17, 2009

What is GPS and how to use GPS


The Global Positioning System (GPS) is a global navigation satellite system (GNSS) developed by the United States Department of Defense and managed by the United States Air Force 50th Space Wing. It is the only fully functional GNSS in the world, can be used freely, and is often used by civilians for navigation purposes. It uses a constellation of between 24 and 32 Medium Earth Orbit satellites that transmit precise microwave signals, which allow GPS receivers to determine their current location, the time, and their velocity. Its official name is NAVSTAR GPS. Although NAVSTAR is not an acronym, a few backronyms have been created for it.

Since it became fully operational in 1993, GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses, and hobbies such as geocaching. Also, the precise time reference is used in many applications including the scientific study of earthquakes. GPS is also a required key synchronization resource of cellular networks, such as the Qualcomm CDMA air interface used by many wireless carriers in a multitude of countries.
GPS is a complex technology but understanding it can be quite easy if you take it one step at a time. The Global Positioning System (GPS) is a worldwide radio-navigation system formed from a constellation of 24 satellites and their ground stations.

Timeline

* In 1972, the US Air Force Central Inertial Guidance Test Facility (Holloman AFB) conducted developmental flight tests of two prototype GPS receivers over White Sands Missile Range, using ground-based pseudo-satellites.
* In 1978 the first experimental Block-I GPS satellite was launched.
* In 1983, after Soviet interceptor aircraft shot down the civilian airliner KAL 007 that strayed into prohibited airspace due to navigational errors, killing all 269 people on board, U.S. President Ronald Reagan announced that the GPS would be made available for civilian uses once it was completed.
* By 1985, ten more experimental Block-I satellites had been launched to validate the concept.
* On February 14, 1989, the first modern Block-II satellite was launched.
* In 1992, the 2nd Space Wing, which originally managed the system, was de-activated and replaced by the 50th Space Wing.
* By December 1993 the GPS achieved initial operational capability.
* By January 17, 1994 a complete constellation of 24 satellites was in orbit.
* Full Operational Capability was declared by NAVSTAR in April 1995.
* In 1996, recognizing the importance of GPS to civilian users as well as military users, U.S. President Bill Clinton issued a policy directive[9] declaring GPS to be a dual-use system and establishing an Interagency GPS Executive Board to manage it as a national asset.
* In 1998, U.S. Vice President Al Gore announced plans to upgrade GPS with two new civilian signals for enhanced user accuracy and reliability, particularly with respect to aviation safety.
* On May 2, 2000 "Selective Availability" was discontinued as a result of the 1996 executive order, allowing users to receive a non-degraded signal globally.
* In 2004, the United States Government signed a historic agreement with the European Community establishing cooperation related to GPS and Europe's planned Galileo system.
* In 2004, U.S. President George W. Bush updated the national policy, replacing the executive board with the National Space-Based Positioning, Navigation, and Timing Executive Committee.
* November 2004, QUALCOMM announced successful tests of Assisted-GPS for mobile phones.
* In 2005, the first modernized GPS satellite was launched and began transmitting a second civilian signal (L2C) for enhanced user performance.
* On September 14, 2007, the aging mainframe-based Ground Segment Control System was transitioned to the new Architecture Evolution Plan.
* The most recent launch was on March 15, 2008.[12] The oldest GPS satellite still in operation was launched on November 26, 1990, and became operational on December 10, 1990.
(source: wikipedia)

GPS uses these "man-made stars" as reference points to calculate positions accurate to a matter of meters. In fact, with advanced forms of GPS you can make measurements to better than a centimeter! In a sense it's like giving every square meter on the planet a unique address. GPS receivers have been miniaturized to just a few integrated circuits and so are becoming very economical. And that makes the technology accessible to virtually everyone. These days GPS is finding its way into cars, boats, planes, construction equipment, movie making gear, farm machinery, even laptop computers. Soon GPS will become almost as basic as the telephone. Indeed, at Trimble, we think it just may become a universal utility

Here's how GPS works in five logical steps:

1. The basis of GPS is "triangulation" from satellites. We're using the word "triangulation" very loosely here because it's a word most people can understand, but purists would not call what GPS does "triangulation" because no angles are involved. It's really "trilateration." Trilateration is a method of determining the relative positions of objects using the geometry of triangles.
2. To "triangulate," a GPS receiver measures distance using the travel time of radio signals.
3. To measure travel time, GPS needs very accurate timing which it achieves with some tricks.
4. Along with distance, you need to know exactly where the satellites are in space. High orbits and careful monitoring are the secret.
5. Finally you must correct for any delays the signal experiences as it travels through the atmosphere.

Using GPS

You have to buy a GPS device to use it. But if you hve one you can still use GPS with any built-in phone GPS system. Nokia has brought GPS with a big bang by integrating the GPS function into its top of the line mobiles. But I have seen a lot of guys being unable to make full use of the service due to limited knowledge about it.

Lets see the steps in order that will enable you to use GPS to its full potential.

Step 1: Install the latest firmware of your mobile

Having the latest firmware on your mobile never hurts and is always recommended. It also improves the GPS/A-GPS performance on your mobile as in new firmware bugs get ironed out which improve performance and reliability of the applications and the phone in general.
Download and install the latest firmware of your phone using the Nokia Software Updater (NSU) which will hardly take 10-15 minutes depending on your broadband connection speed.

Step 2: Download latest version of Nokia Maps Loader

Download the latest version of Nokia Maps loader from Nokia Maps.

The latest version will have new features and will be faster and less buggier than the previous version, so its highly recommended to install the latest version.

Currently the latest version of Nokia Maps Loader is v1.3 but new versions are released from time to time by Nokia which bring in changes that boost the capability of the application. So even after installing you should periodically check for new versions.

Step 3: Download the Maps you need

In order to use the GPS functionality, you need to have the maps of the location you want to view. After installing the Nokia Maps application on your phone, run the application once. This will create a folder in which you can put the maps which you can download on your PC and put into the memory card by using the data cable.

Step 4: Configure Nokia Maps application

You need to configure the Nokia Maps application for it to work properly. You have to firstly define an access point that the application will use to connect. If you have access to unlimited GPRS/HSPDA plan then select that in access point. The connection is used to download maps if required, extra information on maps, voice navigation,address searches etc. You can also set some various

Step 5: Enable Assisted GPS (A-GPS)

A-GPS helps you in navigating through maps but requires 3G/EDGE/GPRS connection to operate. You have to tick the option in settings to enable Assisted GPS. With A-GPS you can navigate even in those places that have weak GPS signals and get detailing in maps. Also you get voice navigation that assists you while driving by telling you when and where to take turns.

GPS on mobile phones is all set to take off in a big way and the major deterrent seems to be that very few detailed maps are available that makes GPS useless for many people. But nevertheless they are increasing day by day and hence expanding the database of GPS users.

Performance

We tested the Nokia 500 Auto Navigation in San Francisco, and from a cold start, it took the unit about three minutes to get a fix on our location under cloudy skies, while subsequent starts took anywhere from a few seconds to a minute.

The receiver did a good job of tracking our position as we drove throughout the city. It did lose its lock when we drove through the Broadway Tunnel, but it was able to pick up a signal soon after we exited the tunnel.

We used the Nokia 500 on two trips. On the first journey, we plotted a course from the Marina District of San Francisco to Sunnyvale, California. We punched in our start and end points, and the system was pretty quick to calculate directions. Having never been to this destination, we took the Nokia 500 for its word and set out on our trip.

We're happy to report that it got us there efficiently and without any problems. We also tested our standard route from the Marina to CNET's downtown headquarters, and again, no major problems. We missed several turns to test the route recalculation rate, which was fast enough to get us back on course. All that said, we have to say the text-to-speech directions were pretty bad. The voice sounded very robotic and while we understood what it was saying, it mangled quite a few street names.

We paired the Nokia 500 with the RIM BlackBerry Curve 8330 for Verizon Wireless and had no problems connecting or downloading the phone's contact list. We were also able to make and receive calls.

If you're interested in the multimedia experience (you know how I feel about GPS and multimedia), music playback sounded a bit blown out through the system's speakers, though you can plug in a pair of headphones or stream it through your car stereo via FM transmitter.

Usign GPS with iPhone:

Find your location, get directions, and see traffic — all from your phone. Maps on iPhone 3G combines GPS, Wi-Fi, and cell tower location technology with the Multi-Touch interface to create the best mobile map application ever
Find yourself.

iPhone 3G finds your location via GPS or by triangulating your position using Wi-Fi and cellular towers. Drop a pin to mark your location, bookmark it, or share it with others via email. iPhone 3G also finds points of interest by keyword: Search for “coffee” and iPhone shows you every cafe nearby. Learn more
Enjoy the view.

Just like Google Maps on your computer, Google Maps on iPhone lets you switch between views of map data, satellite images, hybrid view, or street view. Multi-Touch makes the difference. Tap to zoom, pan, and change your view on the move.


Get directions.
Get directions to wherever from wherever. View a list of turn-by-turn directions or follow a highlighted map route and track your progress with live GPS tracking.
See traffic.

Maps on iPhone shows you live traffic information, indicating traffic speed along your route in easy-to-read green, red, and yellow highlights


Other systems

Other satellite navigation systems in use or various states of development include:

* Flag of the People's Republic of China Beidou – China's regional system that China has proposed to expand into a global system named COMPASS.
* Flag of Europe Galileo – a proposed global system being developed by the European Union, joined by China, Israel, India, Morocco, Saudi Arabia, South Korea, and Ukraine, planned to be operational by 2013.
* Flag of Russia GLONASS – Russia's global system which is being restored to full availability in partnership with India.
* Flag of India Indian Regional Navigational Satellite System (IRNSS) – India's proposed regional system.
* Flag of Japan QZSS – Japanese proposed regional system, adding better coverage to the Japanese Islands.

Download Windows 7 Beta Free

Download Windows 7 Beta Free

Windows 7 is the next release of the Windows client operating system, built on the secure foundation of Windows Vista and Windows Server 2008.

Hardware Recommendations:
Processor: 1 GHz 32-bit or 64-bit processor
Memory: 1 GB of system memory
Hard drive: 16 GB of available disk space
Video card: Support for DirectX 9 graphics with 128MB memory (in order to enable Aero theme)
Drive: DVD-R/W drive
Internet connection (to download the Beta and get updates)

Windows 7 Beta Frequently Asked Questions:
Download:

Tips: Windows NT (Windows 2000, XP Professional) Part-04

Drop and Run:

You can open the Run dialog box (Start > Run), then drag and drop a file or application onto it form My Computer or Explorer. The compete pathname appears in the Run dialog box. Now you could add command-line options or simple click OK to launch the file.

Re-create NT installations disks:

You can re-create NT installation disks if you lose or damage your original set. Format three floppy disks and load your 4.0 CD-ROM in the drive. Form the Run dialog box, browse to the i386 folder on the CD-ROM and select winnet32.exe and click Open. Alter the Run command like to d:\i386\winnt32/ox (where the first d is the CD-ROM drive letter). Click OK and follow the prompts.

List of settings and address:

For a complete list of the settings and address currently assigned to your system, open the Command Prompt form the Start button's Program menu, and type ipconfig/all. this will display all TCP/IP relates settings on the system. This is similar to winipcfg in Windows 9x.

Easy addition of users:

Creating a user template makes if easy to add multiple new users with the same group and access privileges. Open User Manager for Domains. Add a new user by selecting New User form the User menu. Label this user as a template for the user level, such as Template--Worker or Template--Secretary and set the correct privileges and options for Groups, Profile, and Dial-in. the next time you need to add a user, simple select the template account, and select User > Cope from the menu. All you need to do is changed the name and password.

Maintaining a Repair disk:

The Emergency Repair Disk (ERD) holds a record of the settings and boot parameters for your primary partition Boot Sector. Every time you make a change to these areas, you should also re-crease the ERD; otherwise, the repair disk will not restore your system to the most recent functioning state. To crease an updated ERD, type rdisk /s in the Run dialog box.

Documentation Books on your hard drive:

Wish to avoid inserting the NT CD-ROM every time you access Books Online? Simple cope the \Support\Books form the CD-ROM to your hard drive. Next, remove the disc form the drive and attempt to launch the Books Online Shortcut. When you're prompted to insert the CD-ROM or specify an alternate route, click the Browse button, and select the directory where you copied the files.

Restoring a damaged boot sector:

An up-to-date Emergency Repair Disk (ERD) can aid you in recovering from a damaged boot sector. To restore a damaged boot sector, reboot the computer using the Setup disk 1, followed by disk 2 when prompted. Select R for Repair. Form the next menu, select only Inspect boot sector (to check the boot sector for damaged). Insert disk 3 and then the ERD when prompted and follow the instructions on screen.

Tips: Windows NT (Windows 2000, XP Professional) Part-03

AutoComplete:

You can automatically fill in file and folder names at the command prompt, much like a UNIX terminal. Launch the Registry editor and move down to the HKEY_CURRENT_USER \Software\Microsoft\Command Processor. Select CompletionChar and set its value of to 9. Restart the system for the changes to take effect. Now, at the Command Prompt window, type in the first few characters of the file or folders and press Tab to complete it automatically.

Saving Recent Desktop Settings:

To save the Desktop settings on normal exits only. You could lose your recent Desktop modifications if NT crashes or hangs. you can save your current Desktop settings by selecting and object on the Desktop and pressing F5 key.

Key to the CD Key:

The CD Key is required to reinstall the operating system. If you have lost it, you can retrieve it form the Windows registry. Open Regedit and navigate to HKEY_LOCALMACHINE\SOFTWARE\Microsoft\WindowsNT \CurrentVersion. Look at ProductId. The CD Key is digits 6 thought 15.

The Bin is Full:

To change the icons used for the Recycle bin, run the Registry Editor and navigate to HKEY_LOCAL_MACHINE\Software\Classes\CLSID\ {645F040-5081-101B-9F08-00AA002F954E}\DefaultIcon. Edit the value labeled Full and type the path to the icon file. Similarly, edit the value labeled Empty Empty to specify the icon for the empty recycle bin.

Compressing data:

Windows NT lets you compress and decompress directories and files on NTFS partition. Compression reduces storage requirements for seldom-accessed files without degrading overall drive performance. You can compress and expand files and directories form My Computer or Explore - just right-click on item, select Properties and enable Compress form the list of attributes.

Tips: Windows NT (Windows 2000, XP Professional) Part-02

Performance Monitor:

The Performance Monitor will not monitor disk performance unless you turn on the disk counters first. to do this, open the Command Prompt window and type diskperf -Y. r\Restart the computer. you can monitor disk activity with the Performance, you should turn them off by typing diskperd -N at the Command Prompt when you have finished testing.

Sharing Resources Secretly:

To secretly share a resource, simple append a dollar sign ($) to share name. When you do so, the resource doesn't appear in Network Neighborhood, but is readily available by either mapping the drive or typing the UNC in the Run dialog box. This provides an additional degree of privacy and security to a shared resource. Further more, and access restrictions or passwords assigned to that shared resource remain in effect.

NT Protocol Analyser:

NT server 4.0 includes a software-based protocol analyzer called the Network Monitor Agent. To install it open Control Panel > Network > Services and click on Add. Select Network Monitor Agent from the list. You can now start Network Monitor from the Administrative Tools. To capture network data, click on Capture > Start. Click Capture > Stop to stop monitoring.

Alerter and Messenger:

If messages don't reach their destination's) when using "net send" command, turn on the Alerter and Messenger serviced in the Services applet of the Control Panel. also, make sure that the intended recipient is not logged in to multiple machines.

Adding a Command Prompt to any Folder:

Open Explorer and click View > Options > File Types. Locate Folder and click Edit. Click New to open the New Action dialog box. Type Command Prompt in the Action box, and type cmd.exe in the Application Used to Perform Action box. Now you can right-click a folder and click Command Prompt to open a Command Prompt window at the folder's path.

Tips: Windows NT (Windows 2000, XP Professional) Part-01

Desktop Gone Forever
If you can do without the regular NT 4.0 desktop permanently, it's possible to start with just the Task Manager even without Command Prompt. Launch the Registry Editor and locate HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/ CurrentVersion/WinLogon. Double-click on value named Shell (set by default to Explorer.exe). Enter Taskmgr.exe for the NT Task Manager. For a command prompt, enter Cmd.exe. Close the Registry Editor and log off.

Using the Windows Task Manager
Windows Task Manager can aid you in finding the amount of RAM you can regain by disabling unnecessary system services. Right-click on the taskbar and select Task Manager from the context menu. You can view the CPU usage and memory usage under the Performance tab, To regain resources, you can kill unnecessary processes from the Processes tab.

Fast Menus
You can change the Start menu delay in displaying sub-menus. Run Regedit adn navigate to HKEY_CURRENT_USER \Control Panel\Desktop. Change the value for MenuShowDelay to any number between 0 (fastest) and 4000 (slowest). If the above does not exist, add a string value with this name.

Launch Faster
You can change the default boot delay of 30 seconds. Open Control Panel > System > Startup/Shutdown. Under the Show List For, change the settings to the desired boot delay value. To bypass the boot menu altogether, set the delay to 0. Note: If you dual boot between the Operating Systems using the NT boot loader, do not set the boot delay value to 0.

Messing with Partitions
Before using Disk Administrator to make changes to the partitions, you may want to make sure you save your current configuration. To do this, click Start > Programs > Administrator tools > Disk Administrator > Partition > Configuration > Save. Insert a formatted floppy disk into your drive and click OK. You can restore the partition structure later by clicking on Partition > Configuration > Restore.

The easiest HTML guide for beginners

Let's begin to create your first web page. To make this truly the easiest guide, we will ignore some technical terms and details that you don't need to know right now.

This tutorial will guide you in creating a simple web page containing text, image, links to other web pages, and email link. What you need for this tutorial is only a simple text editor program like Notepad or other programs that you use for writing text on your machine. If you're using Windows 95/98, just click 'Start' -> 'Programs' -> 'Accessories' -> 'Notepad'

Create your first web page

First, type the first line of our web page



then type this



You can type them in capital case or lower case. It doesn't matter. I typed them in capital to make it easy to read. Nothing has happened yet; we have just told the browsers (Netscape, Internet Explorer, and etc.) that this is a HTML document. The first is to tell the browser that "Here's the begining of HTML section." tells the browsers that "Here's the end of HTML section." Inside these two tags is where you will put the contents of your web page in.

Notice that we have and . This is how we open and close HTML tags. The closing tag is always in format. In most case, you will have to close every tag that you open.

Next, add a HEAD section to your web page.


My first page



tells the browsers that the title of our web page is "My first page." This sentence will appear at the top of browser window. Where? Look at the top of this window (the one that you're reading) and you will see "The easiest HTML guide for beginners" <br /> <br />OK. Now, let's put in the first word that the browser will display. <br /> <br /><HTML> <br /><HEAD> <br /><TITLE>My first page


HELLO





We put to tell the browser that this is the starting point of the body of our document.

refers to header 1, which is the biggest size (see below.) You can try from

to

. Different numbers will yield different sizes.

Here is an example:
h1
h3
h5

Let's get back to our document. It now looks like this in a browser.
HELLO

Let's save this web page and view it in your browser. Save the page using 'save as' and name it whatever you like. Let's name it "mypage.htm" Please remember the location of your file. You may create a new directory for it or just simply save it in drive C. Open your web browser (Netscape or Internet Explorer) and try to open the file that you just save. Click on 'File' -> 'Open' and type in c:\mypage.htm or the path to your file.

Wednesday, March 25, 2009

Using Remote Shutdown command in windows operating system

This article will show you how to use the Remote Shutdown tool (Shutdown.exe) to shut down and restart a local or remote Windows 2000-based or Microsoft Windows NT 4.0-based computer.

Note Shutdown.exe for Windows 2000 is no longer supported and is not available for download from Microsoft. This tool is available on the original Microsoft Windows 2000 Resource Kit CD-ROM only.
You can perform a remote shutdown from the command prompt using the shutdown command and it’s associated switches, from the remote shutdown dialog box, or from a batch file. I’ll try to go through all three in this guide.


Remote Shutdown Overview

Firstly, in order to remotely shutdown a computer on your network, you’ll need to make sure you have Administrative access to that computer. If you’re on a home network, the best way to do this is to make sure all computers are in the same workgroup and that they all have at least one Administrator account with the same user name and password.

You can also have different Administrator account names across computers, but then you’ll need to make sure you add the Administrator account of one computer to the account list on the other computers. You’ll also need to know all the names of the other computers on the network. You can do that by going to Control Panel and then clicking on System. Then click on the Computer Name tab.

from microsfot network


Description of the Shutdown.exe Tool

Shutdown.exe uses the following syntax:
shutdown \\computername /l /a /r /t:xx "msg" /y /c
You can use the following switches with Shutdown.exe:

* \\computername: Use this switch to specify the remote computer to shut down. If you omit this parameter, the local computer name is used.
* /l (Note that this is a lowercase "L" character): Use this switch to shut down the local computer
* /a: Use this switch to quit a shutdown operation. You can do this only during the time-out period. If you use this switch, all other parameters are ignored.
* /r: Use this switch to restart the computer instead of fully shutting it down.
* /t:xx: Use this switch to specify the time (in seconds) after which the computer is shut down. The default is 20 seconds.
* "msg": Use this switch to specify a message during the shutdown process. The maximum number of characters that the message can contain is 127.
* /y: Use this switch to force a "yes" answer to all queries from the computer.
* /c: Use this switch quit all running programs. If you use this switch, Windows forces all programs that are running to quit. The option to save any data that may have changed is ignored. This can result in data loss in any programs for which data is not previously saved.


Examples

* To shut down the local computer in two minutes and display a "The computer is shutting down" message, use the following line in a batch file or type it at a command prompt, and then press ENTER:
shutdown /l /t:120 "The computer is shutting down" /y /c To cancel the shutdown process, type the following line at the command prompt, and then press ENTER:
shutdown /l /a /y
* To shut down and restart a remote computer named "Support," use the following line in a batch file or type it at a command prompt, and then press ENTER:
shutdown \\support /r
* To schedule the local computer to shutdown and restart at 10:00 P.M., type the following line at a command prompt, and then press ENTER:
at 22:00 shutdown /l /r /y /c
* To schedule the local computer to shutdown and restart at 6:00 P.M. every weekday, type the following line at a command prompt, and then press ENTER:
at 18:00 /every:M,T,W,Th,F shutdown /l /r /y /c

Remote shutdown via Command Prompt

The shutdown command is most flexible when using it from the command prompt because you can add a bunch of switches to it, which allow you to customize the behavior. Go to Start, then Run, and type in CMD. In the black command window, type in shutdown /? to see the list of switches.

You have to use at least one switch in order for the command to do anything. Basically you would type in shutdown -X -Y -Z where X, Y, Z are letters in the list above.

Here are a couple of the most command switches and what actions they peform:

-l: Logs off the computer

-s: Shuts down the computer

-r: Restarts the computer

-m \\computername: remote shutdown of a computer

-f: Forces programs to close immediately

So for remotely shutting down another machine on your network, you would type into the command prompt the following commands:

Try:
shutdown –m \\computername –r –f
This above command will restart the computer named computername and force all programs that are still running to die

shutdown –m \\computername –r –f –c “The computer will restart, please save all work.” –t 60
This command will restart the computer named computername, force all programs that are running to die, show a message to the user, and countdown 60 seconds before it restarts.

Remote Shutdown via Batch File
Finally, you can create a batch file so that you can do all of this by just clicking on a file! Or you can even schedule the batch file to be run at specific intervals using Windows Scheduler.

Just go to Notepad and type in the commands you would have typed into the command prompt:

shutdown –m \\computername1 –r
shutdown –m \\computername2 –r
shutdown –m \\computername3 –r


This will restart three computers on my home network. You would of course replace computername1 with the actual names of your computers. Then simple save the file with a .BAT file extension. You can put as many commands into the batch file as you like, so feel free to experiment!
Source: support.microsoft.com/kb/317371

How to remove SafeMass Trojan from your system

Today we found a new trojan called SafeMass.exe on our office pc. Most of the recent updated antivirus can't detect or remove it from PC. So that we have to remove it manually.

At the very first, close it from your system tray then remove its autorun entry from registry. Here is the registry key location-

\REGISTRY
\MACHINE
\SOFTWARE
\Microsoft
\Windows
\CurrentVersion
\Run
\SafeMass

And then Remove SafeMass.exe from your system

This trojan also create a autorun.inf file with following contents
[autorun]
open=SafeMass.exe
shellexecute=SafeMass.exe
shell\auto=&Auto
shell\auto\command=SafeMass.exe
shell\explore=&Explore
shell\explore\command=SafeMass.exe
shell\find=S&earch...
shell\find\command=SafeMass.exe
shell\open=&Open
shell\open\command=SafeMass.exe

Remove it too..

Thats it.

Deleting A String From Firefox's about:config Page

If you are looking for a solution about deleting any string or values from Mozilla Firefox about:config Page, you are in the right place. Let me tell ya the procedure...

1. Close firefox (so not to mess it up even more).
2. Go into your profile page "%AppData%\Mozilla\Firefox\Profiles\xxxxxxxx.default\" the x's stand for a randomly generated code for every profile.
3. Open the file "prefs.js" in a text editor.
4. And just use the find tool and enter the title of the string. (not the whole title just a part if you want) and just erase that part.

more simply-
1. Click Start > Run and type %AppData%\Mozilla\Firefox\Profiles
2. Open the folder and find prefs.js
3. Open the file "prefs.js" in a text editor.
4. And just use the find tool and enter the title of the string. (not the whole title just a part if you want) and just erase that part.

(close Firefox before doing so....)

Thats it.

Friday, January 16, 2009

How To Speed Up Mozilla Firefox

There are a few tricks to speed up Firefox. Check them out below:

1. Open Firefox.
2. Type about:config in the address bar and press Enter.

HTTP PIPELINING
HTTP is the application-layer protocol that most web pages are transferred with. In HTTP 1.1, multiple requests can be sent before any responses are received. This is known as pipelining. Pipelining reduces page loading times, but not all servers support it.

In the filter bar type network.http.pipelining. Make sure under the value field is says true. If not double-click to set it.

Return to the filter bar and type network.http.pipelining.maxrequests. Double-click this option and set its value to 8.

HTTP PROXY Go to the filter bar and type network.http.proxy.pipelining. Once it opens double-click it to set it to true.

DNS
IPv6 was designed in part to solve the problem IPv4 will soon be facing: the exhaustion of all possible IP addresses. Mozilla implemented IPv6 support in early 2000, but that support did not receive widespread testing until recently as IPv6-capable OSs and network software/equipment became more common.

One particular bug that has appeared exists not in Mozilla, but in IPv6-capable DNS servers: an IPv4 address may be returned when an IPv6 address is requested. It is possible for Mozilla to recover from this misinformation, but a significant delay is introduced. Type network.dns.disableIPv6 in the filter bar and set this option to true by double clicking on it.

CONTENT INTERRUPT PARSINGThis preference controls whether the application will interrupt parsing a page to respond to UI events. It does not exist by default.

Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Boolean from the pop-up menu.

Enter content.interrupt.parsing in the New boolean value pop-up window and click OK.

You will be prompted to choose the value for the new boolean. Select true and click OK.

CONTENT MAX TOKENIZING TIME Rather than wait until a page has completely downloaded to display it to the user, Mozilla applications will periodically render what has been received to that point. This preference controls the maximum amount of time the application will be unresponsive while rendering pages.

Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter content.max.tokenizing.time in the New integer value pop-up window and click OK.
You will be prompted to enter a value. Enter 2250000 and click OK.

CONTENT NOTIFY INTERVALThis preference specifies the minimum amount of time to wait between reflows. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter content.notify.interval in the New integer value pop-up window and click OK.
You will be prompted to enter a value. Enter 750000 and click OK.

CONTENT NOTIFY ONTIMERThis preference specifies whether to reflow pages at an interval any higher than that specified by content.notify.interval. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Boolean from the pop-up menu.

Enter content.notify.ontimer in the New boolean value pop-up window and click OK.

You will be prompted to choose the value for the new boolean. Select true and click OK.

CONTENT NOTIFY BACKOFFCOUNT This preference controls the maximum number of times the content will do timer-based reflows. After this number has been reached, the page will only reflow once it is finished downloading. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter content.notify.backoffcount in the New integer value pop-up window and click OK.

You will be prompted to enter a value. Enter 5 and click OK.

CONTENT SWITCH THRESHOLDThe user can interact with a loading page when content.interrupt.parsing is set to true. When a page is loading, the application has two modes: a high frequency interrupt mode and a low frequency interrupt mode. The high frequency interrupt mode interrupts the parser more frequently to allow for greater UI responsiveness during page load. The low frequency interrupt mode interrupts the parser less frequently to allow for quicker page load. The application enters high frequency interrupt mode when the user moves the mouse or types on the keyboard and switches back to low frequency mode when the user has had no activity for a certain amount of time. This preference controls that amount of time. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter content.switch.threshold in the New integer value pop-up window and click OK.

You will be prompted to enter a value. Enter 750000 and click OK.

NGLAYOUT INITIALPAINT DELAYMozilla applications render web pages incrementally - they display what's been received of a page before the entire page has been downloaded. Since the start of a web page normally doesn't have much useful information to display, Mozilla applications will wait a short interval before first rendering a page. This preference controls that interval. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter nglayout.initialpaint.delay in the New integer value pop-up window and click OK.

You will be prompted to enter a value. Enter 0 and click OK.

UI SUBMENU DELAY This preference controls the time a menu takes to open a sub-menu. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter ui.submenuDelay in the New integer value pop-up window and click OK.

You will be prompted to enter a value. Enter 0 and click OK.

PLUGIN EXPOSE FULL PATHThis preference shows full path to plugins in about:plugins. Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Boolean from the pop-up menu.

Enter plugin.expose_full_path in the New boolean value pop-up window and click OK.

You will be prompted to choose the value for the new boolean. Select true and click OK.

BROWSER CACHE MEMORY CAPACITYWhen a page is loaded, it can be cached so it doesn't need to be rerendered to be redisplayed. This preference controls the maximum amount of memory to use for caching decoded images and chrome (application user interface elements). Right-click (Apple users ctrl-click) anywhere in the about:config window and select New and then Integer from the pop-up menu.

Enter browser.cache.memory.capacity in the New integer value pop-up window and click OK.

You will be prompted to enter a value. Enter 65536 and click OK.

How to remove top border from Blogspot?

Step 1:

On your Dashboard, select Layout. This will take you to the Template tab. Click Edit HTML. Under the Edit Template section you will see you blog's HTML.

[blogspot border]

Step 2:
Look for tags #header-wrapper and #header as below and change border to 0 then SAVE Template

#header-wrapper {
width:660px;
margin:0 auto 10px;
border:0px solid $bordercolor;
}

#header {
margin: 5px;
border: 0px solid $bordercolor;
text-align: center;
color:$pagetitlecolor;
}

Step 3: Add this code anywhere...

#navbar-iframe {
height:0px;
visibility:hidden;
display:none
}

done!

The basics of Web site security

Just a little bit of legwork can help you protected.

1. Choose a respected and established Web hosting first line of defense. Don’t be afraid to ask questions

2. Be sure that your Web host maintains tight physical servers. It should also perform regular backups running even if a server goes down. For instance, Microsoft Office Live Small Business, it is stored
controlled locations.

3. Watch out for unusual activity on your Web usage may be a tip-off that a hacker has infiltrated

4. Consider hiring an IT or security professional defenses. This is especially important if you customers’ health information or financial data.

5. Restrict employee access to your Web site. able to update it should have the password Change the password on a regular basis.

Ramdisk for Windows Vista/XP/2000

Ramdisk or RAM-Disk is a virtual hard drive based on software abstraction that treats a segment of random access memory (RAM) as secondary storage which is similar to hard disks, except with advantage that ramdisk is a lot faster and access time is greatly improved. However there is one downside for Ramdisk, it’s volatile. Contents in Ramdisk is stored in computer RAM, which will be lost when the power of computer is switched off.

With these benefits and limit, ramdisk can be used to store frequently accessed yet less important temporary data to speed up the system performance, such as swap space for virtual memory , temporary files used for programs such as Internet Explorer, BT client, P2P eMule, compression utility, translation software, frequently accessed data from a database or used to hold uncompressed programs for short periods. From privacy point of view, Ramdisk is also a working drive for decrypted version of encrypted document, as all trace of the data will be wiped and deleted once power off.

There are plenty of Ramdisk driver and software available, such as RamDisk9xME, RAMDiskXP, RAMDiskSE and RAMDiskVE from Cenatek, RamDisk and RamDisk Plus from SuperSpeed, RAMDisk Enterprise Lite and Full version plus 64 MB limited free RAMDisk based on Microsoft Ramdisk below from QSoft, and Ramdisk.sys driver for Windows 2000 from Microsoft published under KB257405. However, most of these Ramdisk drivers either is not free, or limit in its functionality especially on the size on RAM-disk. Some not even support Windows Vista.

The following freeware RRamdisk.sys, originally written by Gavotte based on Microsoft’s Ramdisk.sys, and later being added a GUI interface by lyh728 is not only free to use, it also stable, doesn’t have size limitation, supports popular FAT16,FAT32, NTFS filesystems, and supports Windows 2000 operating system and above including Vista.

Vote Cox's Bazar To The New7wonders In Nature.

Give away of the day for www.ferdous.tk