Windows Server 2003

All the documents and environmental settings for the roaming user are stored locally on the system, and, when the user logs off, all changes to the locally stored profile are copied to the shared server folder. Therefore, the first time a roaming user logs on to a new system the logon process may take some time, depending on how large his profile folder is.

Document and SettingsAll Users

JavaScipt,

VBScript,

DOS batch files

(.com, .bat, or even .exe)

A workgroup is an interconnection of a number of systems that share resources such as files &printers without a dedicated server .Each workgroup maintains a local database for user accounts, security etc. A domain, on the otherhand is an interconnection of systems that share resources with one or more dedicated server, which can be used to control security and permissions for all users in the domain. Domain maintains a centralized database and hence a centralized management of user accounts, policies etc are established. If you have a user account on domain then you can log on to any system without user account on that particular system.

To assign a domain user with local administrative right in any client of domain we should log in to the respected client system then, Start->control panel->user accounts->give username, password and name of domain->add->advanced->locations->find now->select others(in that select administrator user)->ok->next->ok.

Start->dsa.msc->double click on users->right click on any users->properties->click on account->click on logon hours->logon denied->select time (by dragging mouse)->click on logon permission->ok.

The sysvol folder stores the servers copy of the domains public files. The contents such as group policy, users etc of the sysvol folder are replicated to all domain controllers in the domain. The sysvol folder must be located on an NTFS volume.

Domain Name System (or Service or Server), a service that resolves domain names into IP addresses and vice versa. Because domain names are alphabetic, they’re easier to remember.The Internet however, is really based on ip addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.example.com might translate to 198.105.232.4.

The DNS system is, in fact, its own network. If one DNS server doesn’t know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is returned.

The key reason for integrating DNS and AD is efficiency. This is particularly true where you have lots of replication traffic. You can’t resolve host names. You can’t find services, like a domain controller.

A (Host) record is used to resolve name to ip address while PTR (pointer) record is used to resolve ip address to name.

A DHCP scope is a valid range of IP addresses which are available for assignments or lease to client computers on a particular subnet. In a DHCP server, you configure a scope to determine the address pool of ip which the server can provide to DHCP clients.

Scopes determine which IP addresses are provided to the clients. Scopes should be defined and activated before DHCP clients use the DHCP server for its dynamic IP configuration. You can configure as many scopes on a DHCP server as is required in your network environment

If you are using Active Directory-integrated DNS, then your DNS information is stored in Active Directory itself, and you’ll need to back up the entire system state. If not, however, The Backup directory in the %SystemRoot%System32Dns folder contains backup information for the DNS configuration and the DNS database.

The Backup directory in the %SystemRoot%System32DHCP folder contains backup information for the DHCP configuration and the DHCP database. By default, the DHCP database is backed up every 60 minutes automatically. To manually back up the DHCP database at any time, follow these steps:

1. In the DHCP console, right-click the server you want to back up, and then click Backup.

2. In the Browse For Folder dialog box, select the folder that will contain the backup DHCP database, and then click OK.

A Windows-based computer that is configured to use DHCP can automatically assign itself an Internet Protocol (IP) address if a DHCP server is not available or does not exist. The Internet Assigned Numbers Authority (IANA) has reserved 169.254.0.0-169.254.255.255 for Automatic Private IP Addressing(APIPA).

Windows 2003 Active Directory data store, the actual database file, is %SystemRoot%ntdsNTDS.DIT. The ntds.dit file is the heart of Active Directory including user accounts. Active Directory’s database engine is the Extensible Storage Engine ( ESE ) which is based on the Jet database used by Exchange 5.5 and WINS. The ESE has the capability to grow to 16 terabytes which would be large enough for 10 million objects.Only the Jet database can manipulate information within the AD datastore.

Group policies are used by administrators to configure and control user environment settings. Group Policy Objects (GPOs) are used to configure group policies which are applied to sites, domains, and organizational units (OUs). Group policy may be blocked or set so it cannot be overridden. The default is for subobjects to inherit the policy of their parents. There is a maximum of 1000 applicable group policies.

The default refresh interval for policies is 90 minutes. The default refresh interval for domain controllers is 5 minutes. Group policy object’s group policy refresh intervals may be changed in the group policy object.