Research is focused on the following points

• Logon...general definition
  • Session
  • User Name
  • User Authentication
• Remote Logon
• Normal User Logon
• Logon Script
•  

Logon...general definition

The procedure by which a user gains access to, and initiates communication with, a computer in a time-sharing mode. Usually requires an authorized username and password. The opposite of logoff. Also written log on or log-on.

• Session
  A lasting connection between a user  and a network port/computer, typically a server, usually involving the exchange of many packets between the user's computer and the server. A session is typically implemented as a layer in a network protocol to maintain client-server architecture.
  
• User Name
  A unique name for each user of computer services which can be accessed by several persons. Use is suppose to pass user name & password in order to get access to system or any access protected source.
  
• User Authentication 
  After passing user name and password operating system validates the user name and password against that user's profile stored at the time of registration, if user is validated then only he will be awarded access to system or else user will receive the message stating "logon failed".
  

Root logon and Normal User logon

System validates users on different levels defined on the basis of access restriction and permissions.

Root Logon 
Activities performed by a system administrator such as monitoring security configuration, managing allocation of user names and passwords, monitoring disk space and other resource use, performing backups, and setting up new hardware and software. System administrator is the one who has all permissions and authorization to define access permissions for other users.

User / Domain Logon
User logon is performed by the user who uses a program, however skillfully, without getting into the internals administration of the operating system. Access permissions for normal user is monitored and restricted by the administrator. 

Auto Logon...no password needed environment (Windows 98 platform)  

Go to Start>Settings>Control Panel>Passwords, enter your current password in the box Current Password and leave blank. in the New Password and the confirmation box. Then go to the Properties of Network> PRIMARY NETWORK LOGON, select Windows Logon from the  list. Note: if the win98 is in a network, it may not be able to access the network because it is using blank password.

Logon Script

Files that can be assigned to user accounts. Typically a batch file, a logon script runs automatically every time the user logs on. It can be used to configure a user's working environment at every logon, and it allows an administrator to influence a user's environment without managing all aspects of it. A logon script can be assigned to one or more user accounts.

Adding Logon Script...(Windows Server 2003)

1. Click the Start, point to Administrative Tools, and then click Computer Management.
2. In the console tree, expand Local Users and Groups, and then click Users.
3. In the right pane, right-click the user account that you want, and then click Properties.
4. Click the Profile tab.
   In the Logon script box, type the file name (and the relative path, if necessary) of the logon script.
5. NOTE: If the logon script is stored in a subfolder of the default logon script path, put the relative path to that folder in front of the file name. For example, if the Startup.bat logon script is stored in \\ComputerName\Netlogon\FolderName, type FolderName\Startup.bat.
6. Click Apply, and then click OK.

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