Here is the list of Top 10 Websites that can scan for viruses online for free.
1) VirusTotal Online Virus Scanner
Saturday, 19 March 2011
SQL Server Question / Answers
Relational Data Base Management Systems (RDBMS) are database management systems that maintain data records and indices in tables. Relationships may be created and maintained across and among the data and tables. In a relational database, relationships between data items are expressed by means of tables. Interdependencies among these tables are expressed by data values rather than by pointers. This allows a high degree of data independence. An RDBMS has the capability to recombine the data items from different files, providing powerful tools for data usage
Monday, 14 March 2011
How to Install Active Directory on Windows Server 2003
1. Click Start, click Run, type dcpromo, and then click OK.
2. On the first page of the Active Directory Installation Wizard, click Next.
3. On the next page of the Active Directory Installation Wizard, click Next.
4. On the Domain Controller Type page, click Domain Controller for a new domain, and then click Next.
5. On the Create New Domain page, click Domain in a new forest, and then click Next.
6. On the New Domain Name page, in the Full DNS name for new domain box, type Testdc.com, and then click Next.
7. On the Database and Log Folders page, accept the defaults in the Database folder box and the Log folder box, and then click Next.
8. On the Shared System Volume page, accept the default in theFolder location box, and then click Next.
9. On the DNS Registration Diagnostics page, click Install and configure the DNS server on this computer and set this computer to use this DNS server as its preferred DNS Server, and then click Next.
10. On the Permissions page, click Permissions compatible only with Windows 2000 or Windows Server 2003 operating systems, and then click Next.
11. On the Directory Services Restore Mode Administrator Password page, enter a password in the Restore Mode Password box, retype the password to confirm it in the Confirm password box, and then click Next.
12. On the Summary page, confirm the information is correct, and then click Next.
13. When prompted to restart the computer, click Restart now.
After the computer restarts, log on to testdc as a member of the Administrators group.
Sunday, 13 March 2011
Multiple login in Yahoo Messenger from same Computer
In normal condition its not possible to login with multiple ID's in Yahoo Messenger from the same computer. But friends I had a trick for multiple login in yahoo messenger. Now, you can login with multiple ID's on the same yahoo messenger by a simple registry manipulation. You can fool your friends and girl friends by chatting simultaneously with them from two different Yahoo ID's.
Steps for multiple login :
- First of all close Yahoo Messenger, if it's open.
- Go to Start > Run > Type regedit > Click OK
- Go to HKEY_CURRENT_USER > Software > Yahoo > pager > Test
- On the right pane, right-click and choose new Dword value
- Rename it as Plural
- Double click and assign a decimal value of 1
- Now close registry
- Start Yahoo Messenger and login with Yahoo ID.
- For signing in with another Yahoo ID, open another messenger and login
You can directly download this file multiple yahoo login.reg , just double click it and click Yes. But before this close Yahoo Messenger. All your work is done. Now, start Yahoo Messenger as many time as you can and login with different Yahoo ID's.
Download Link: multiple_yahoo_login.reg
Saturday, 12 March 2011
How to shutdown computer automatically at a specific time
Trick 1:
- Start > Run
- Type 'shutdown -s -t 1800' without quotes
- Click OK
- A dialog will appear showing the countdown timer
Note: 1800 is the amount of time remaining before your computer shutdowns. 1800 is in seconds - 60sec * 30 min = 1800 sec. If you want to shutdown your desktop after 1 hour simply enter 3600 sec, as 60 sec * 60 min = 3600 sec.
How to cancel the shutdown timer ?
- Start > Run
- Type 'shutdown -a' without quotes
Trick 2:
- Right click on desktop, Go to New > Shortcut
- Type 'shutdown -s -t 1800' without quotes
- Click Next
- Type whatever you want to name the shortcut link.
- Click Finish.
- Now a shortcut is created in the desktop.
- Just double click it and your shutdown timer will start.
- You can customize the look of the shortcut.
- Right click on the shortcut icon, Go to Properties > Customize > Change Icon > Select any icon from the gallery > Click OK
Trick 3:
In this trick we will create a shutdown job by using the 'at' command, which is used to schedule task manually in windows.
In this trick we will create a shutdown job by using the 'at' command, which is used to schedule task manually in windows.
- Start > Run
- Type 'at 13:26 shutdown -s' without quotes, it will shutdown your computer at 13:26
- If you type 'at 13:26 shutdown -s -t 60', it will shutdown your computer after 60 sec from 13:26 hrs
- Click OK
How to view the list of jobs along with their attributes in your computer and how to abort the jobs ?
- Start > Run
- Type cmd
- Type 'at' without quotes. It will display the list of jobs in your computer.along with their Status ID, Time of execution, Command to be executed etc.
Now, if you want to cancel the shutdown job that we had created.
- Start > Run
- Type cmd
- Type 'at 1 /delete' without quotes. Here '1' represents Status ID of the job. I have already mentioned in the above paragraph how to view the Status ID of the job.
List of Run Commands for Windows
Run command ability is to do almost everything that the command line can do. In some run commands the output is displayed and the windows exit.
eg: 'ipconfig' command. If you type that into Run, it would open a command prompt, run the ipconfig command, and then close because the command finished running!
So, to fix this, type cmd into the Run dialog, and then type ipconfig into the command prompt.
List of Run commands:
eg: 'ipconfig' command. If you type that into Run, it would open a command prompt, run the ipconfig command, and then close because the command finished running!
So, to fix this, type cmd into the Run dialog, and then type ipconfig into the command prompt.
List of Run commands:
- Accessibility Controls - access.cpl
- Accessibility Wizard - accwiz
- Add Hardware Wizard - hdwwiz.cpl
- Add/Remove Programs - appwiz.cpl
- Administrative Tools - control admintools
- Adobe Acrobat (if installed)- acrobat
- Adobe Designer (if installed)- acrodist
- Adobe Distiller (if installed)- acrodist
- Adobe ImageReady (if installed)- imageready
- Adobe Photoshop (if installed) - photoshop
- Automatic Updates - wuaucpl.cpl
- Bluetooth Transfer Wizard - fsquirt
- Calculator - calc
- Certificate Manager - certmgr.msc
- Character Map - charmap
- Check Disk Utility - chkdsk
- Clipboard Viewer - clipbrd
- Command Prompt - cmd
- Component Services - dcomcnfg
- Computer Management - compmgmt.msc
- Control Panel - control
- Date and Time Properties - timedate.cpl
- DDE Shares - ddeshare
- Device Manager - devmgmt.msc
- Direct X Control Panel (If Installed)* - directx.cpl
- Direct X Troubleshooter - dxdiag
- Disk Cleanup Utility - cleanmgr
- Disk Defragment - dfrg.msc
- Disk Management - diskmgmt.msc
- Disk Partition Manager - diskpart
- Display Properties - control desktop
- Display Properties - desk.cpl
- Display Properties (w/Appearance Tab Preselected) - control color
- Dr. Watson System Troubleshooting Utility - drwtsn32
- Driver Verifier Utility - verifier
- Event Viewer - eventvwr.msc
- Files and Settings Transfer Tool - migwiz
- File Signature Verification Tool - sigverif
- Findfast - findfast.cpl
- Firefox (if installed) - firefox
- Folders Properties - control folders
- Fonts - control fonts
- Fonts Folder - fonts
- Free Cell Card Game - freecell
- Game Controllers - joy.cpl
- Group Policy Editor (XP Prof) - gpedit.msc
- Hearts Card Game - mshearts
- Help and Support - helpctr
- HyperTerminal - hypertrm
- Iexpress Wizard - iexpress
- Indexing Service - ciadv.msc
- Internet Connection Wizard - icwconn1
- Internet Explorer - iexplore
- Internet Properties - inetcpl.cpl
- Internet Setup Wizard - inetwiz
- IP Configuration (Display Connection Configuration)- ipconfig /all
- IP Configuration (Display DNS Cache Contents) - ipconfig /displaydns
- IP Configuration (Delete DNS Cache Contents) - ipconfig /flushdns
- IP Configuration (Release All Connections) - ipconfig /release
- IP Configuration (Renew All Connections) - ipconfig /renew
- IP Configuration (Refreshes DHCP & Re-Registers DNS) - ipconfig /registerdns
- IP Configuration (Display DHCP Class ID) - ipconfig /showclassid
- IP Configuration (Modifies DHCP Class ID)- ipconfig /setclassid
- Java Control Panel (If Installed) - jpicpl32.cpl
- Java Control Panel (If Installed) - javaws
- Keyboard Properties - control keyboard
- Local Security Settings - secpol.msc
- Local Users and Groups - lusrmgr.msc
- Logs You Out Of Windows - logoff
- Malicious Software Removal Tool - mrt
- Microsoft Access (if installed) - access.cpl
- Microsoft Chat - winchat
- Microsoft Excel (if installed) - excel
- Microsoft Frontpage (if installed) - frontpg
- Microsoft Movie Maker - moviemk
- Microsoft Paint - mspaint
- Microsoft Powerpoint (if installed) - powerpnt
- Microsoft Word (if installed) - winword
- Microsoft Syncronization Tool - mobsync
- Minesweeper Game - winmine
- Mouse Properties - control mouse
- Mouse Properties - main.cpl
- Nero (if installed) - nero
- Netmeeting - conf
- Network Connections - control netconnections
- Network Connections- ncpa.cpl
- Network Setup Wizard - netsetup.cpl
- Notepad - notepad
- Nview Desktop Manager (If Installed) - nvtuicpl.cpl
- Object Packager - packager
- ODBC Data Source Administrator - odbccp32.cpl
- On Screen Keyboard - osk
- Opens AC3 Filter (If Installed)- ac3filter.cpl
- Outlook Express - msimn
- Paint - pbrush
- Password Properties - password.cpl
- Performance Monitor - perfmon.msc
- Performance Monitor - perfmon
- Phone and Modem Options - telephon.cpl
- Phone Dialer - dialer
- Pinball Game - pinball
- Power Configuration - powercfg.cpl
- Printers and Faxes - control printers
- Printers Folder - printers
- Private Character Editor - eudcedit
- Quicktime (If Installed) - QuickTime.cpl
- Quicktime Player (if installed) - quicktimeplayer
- Real Player (if installed) - realplay
- Regional Settings - intl.cpl
- Registry Editor - regedit
- Registry Editor - regedit32
- Remote Access Phonebook - rasphone
- Remote Desktop - mstsc
- Removable Storage - ntmsmgr.msc
- Removable Storage Operator Requests - ntmsoprq.msc
- Resultant Set of Policy (XP Prof) - rsop.msc
- Scanners and Cameras - sticpl.cpl
- Scheduled Tasks - control schedtasks
- Security Center - wscui.cpl
- Services - services.msc
- Shared Folders - fsmgmt.msc
- Shuts Down Windows - shutdown
- Sounds and Audio - mmsys.cpl
- Spider Solitare Card Game - spider
- SQL Client Configuration - cliconfg
- System Configuration Editor - sysedit
- System Configuration Utility - msconfig
- System File Checker Utility (Scan Immediately) - sfc /scannow
- System File Checker Utility (Scan Once At Next Boot)- sfc /scanonce
- System File Checker Utility (Scan On Every Boot)- sfc /scanboot
- System File Checker Utility (Return to Default Setting) - sfc /revert
- System File Checker Utility (Purge File Cache) - sfc /purgecache
- System File Checker Utility (Set Cache Size to size x) - sfc /cachesize=x
- System Information - msinfo32
- System Properties - sysdm.cpl
- Task Manager - taskmgr
- TCP Tester - tcptest
- Telnet Client - telnet
- Tweak UI (if installed) - tweakui
- User Account Management - nusrmgr.cpl
- Utility Manager - utilman
- Windows Address Book - wab
- Windows Address Book Import Utility - wabmig
- Windows Backup Utility (if installed) - ntbackup
- Windows Explorer - explorer
- Windows Firewall - firewall.cpl
- Windows Address Book - wab
- Windows Address Book Import Utility - wabmig
- Windows Backup Utility (if installed) - ntbackup
- Windows Explorer - explorer
- Windows Firewall - firewall.cpl
- Windows Magnifier - magnify
- Windows Management Infrastructure - wmimgmt.msc
- Windows Media Player - wmplayer
- Windows Messenger - msmsgs
- Windows Picture Import Wizard (need camera connected) - wiaacmgr
- Windows System Security Tool - syskey
- Windows Update Launches - wupdmgr
- Windows Version (to show which version of windows) - winver
- Windows XP Tour Wizard - tourstart
- Wordpad - write
Different Types of Hard Disk Drive
It is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surface.
Types of HDD :
- IDE : Integrated Drive Electronics. IDE drives are also known as PATA drives( Parallel advance technology attachment )
- SATA : Serial advance technology attachment
- SCSI : Small Computer System Interface. SCSI is pronounced as scuzzy.
- SAS : Serial Attached SCSI
DE / PATA (Integrated Drive Electronics Drive / Parallel Advance Technology Attachment Drive)
- IDE/PATA Drives have usually 40 pins.
- IDE/PATA Drives offer 133 MB/sec transfer rate.
- It sends 8 bit data at a time.
- PATA Cables are used to connect PATA HDD. Two drives can be connected in a single pata cable. One as master and other as slave. The configuration of master and slave is done by different combination of jumpers in the hdd.
SATA (Serial Advance Technology Attachment Drive)
- SATA Drives have usually 7 pins, 4 pins in pair of two for sending and receiving data and rest 3 pins are grounded.
- SATA Drives offers generally 300MB/sec transfer rate.
- It sends data bit by bit.
- SATA Cables are used to connect SATA HDD. Only one drive can be connected in a single sata cable.
SCSI (Small Computer System Interface Drive)
- SCSI Drives have usually 50 to 68 pins.
- SCSI Drive offers generally 640MB/sec transfer rate.
- This drives are hot swappable.
- SCSI cables are used to connect SCSI HDD. Maximum of 16 drives can be connected in a single scsi cable. Each hdd have a 8 bytes hexadecimal code known as WWN (worldwide name) for its identification in the cable.
SAS(Serial Attached SCSI Drive)
- SAS Drives generally offers 805 MB/sec transfer rate.
- This drives are hot swappable.
- SAS Cables are used to connect SAS Drives. Maximum of 128 drives can be connected in a single sas cable.
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