A network can be one computer connected to the Internet, or two or more computers connected to each other (and also to the Internet). In a wireless network, the computers are connected by radio signals instead of wires or cables. Advantages of wireless networks include mobility and no unsightly wires. Disadvantages can include a slower connection than a wired network and interference from other wireless devices, such as cordless phones.
Currently there are three options: 802.11b, 802.11a, and 802.11g. The sections below compare these technologies.
802.11b
Speed
Up to 11 megabits per second (Mbps)
Pros
Costs the least
Has the best signal range
Cons
Has the slowest transmission speed
Allows for fewer simultaneous users
Uses the 2.4 gigahertz (GHz) frequency (the same as many microwave ovens, cordless phones, and other appliances), which can cause interference
802.11a
Speed
Up to 54 Mbps
Pros
Has the fastest transmission speed
Allows for more simultaneous users
Uses the 5 GHz frequency, which limits interference from other devices
Cons
Costs the most
Has a shorter signal range, which is more easily obstructed by walls and other obstacles
Is not compatible with 802.11b network adapters, routers, and access points
802.11g
Speed
Up to 54 Mbps
Pros
Has a transmission speed comparable to 802.11a under optimal conditions
Allows for more simultaneous users
Has the best signal range and is not easily obstructed
Is compatible with 802.11b network adapters, routers, and access points
Cons
Uses the 2.4 GHz frequency so it has the same interference problems as 802.11b
Costs more than 802.11b
If you have more than one wireless network adapter in your computer or if your adapter uses more than one standard, you can specify which adapter or standard to use for each network connection. For example, if you have a computer that you use for streaming media, such as videos or music, to other computers on your network , you should set it up to use the 802.11a connection, if available, because you will get a faster data transfer rate when you watch videos or listen to music.
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In the client/server programming model, a server is a program that awaits and fulfills requests from client programs in the same or other computers. A given application in a computer may function as a client with requests for services from other programs and also as a server of requests from other programs.
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he operating system is configured correctly. In the Windows Server 2003 family, file services depend on the appropriate configuration of the operating system and its services. If you have a new installation of a Windows Server 2003 operating system, you can use the default service settings. No further action is necessary. If you upgraded to a Windows Server 2003 operating system or you want to confirm that your services are configured correctly for best performance and security, verify your service settings by comparing them to the table in Default settings for services.
The computer is joined to an Active Directory domain as a member server. If you want to authenticate clients or publish a shared folder to Active Directory, the file server must be joined to a domain. If you do not need to perform either of these tasks, the file server does not need to be joined to a domain.
All available disk space is allocated. You can use Disk Management or DiskPart.exe to create a new partition out of unallocated space. For more information see, To create a partition or logical drive.
All existing disk volumes use the NTFS file system. FAT32 volumes are not secure, and they do not support file and folder compression, disk quotas, file encryption, or individual file permissions.
The following table lists the information that you need to know before you add a file server role.
Before adding a file server role Comments
Determine whether you want to configure disk quotas. Use disk quotas to track and control disk space usage for NTFS volumes on a per-volume basis. Quotas prevent users from exceeding the designated disk space by logging an event when a user exceeds a specified disk space limit.
Determine whether you want to use Indexing Service. Indexing Service creates indexes of the contents and properties of documents located on your local hard drive or on shared network drives. These indexes enable users to perform faster, easier searches. Indexing Service can slow down the server, so use it only if users frequently search the contents of files on this server.
Identify the folders that you want to share on the computer, and specify a folder name and description. Users view the shared resources on this file server based on file name. It is recommended that you create share names that are easy to remember and indicative of the folder contents. For example, suppose users are provided with 2 gigabytes (GB) each for storing their private information on the file server. You might name the top-level folder on your file server Personal Folders, and then name each of the subfolders according to the user's domain name.
Determine what type of permissions you want to set on the folders. Assign the most restrictive permissions that still allow users to perform required tasks. Access control on the NTFS file system provides more security than share permissions alone.
The computer is joined to an Active Directory domain as a member server. If you want to authenticate clients or publish a shared folder to Active Directory, the file server must be joined to a domain. If you do not need to perform either of these tasks, the file server does not need to be joined to a domain.
All available disk space is allocated. You can use Disk Management or DiskPart.exe to create a new partition out of unallocated space. For more information see, To create a partition or logical drive.
All existing disk volumes use the NTFS file system. FAT32 volumes are not secure, and they do not support file and folder compression, disk quotas, file encryption, or individual file permissions.
The following table lists the information that you need to know before you add a file server role.
Before adding a file server role Comments
Determine whether you want to configure disk quotas. Use disk quotas to track and control disk space usage for NTFS volumes on a per-volume basis. Quotas prevent users from exceeding the designated disk space by logging an event when a user exceeds a specified disk space limit.
Determine whether you want to use Indexing Service. Indexing Service creates indexes of the contents and properties of documents located on your local hard drive or on shared network drives. These indexes enable users to perform faster, easier searches. Indexing Service can slow down the server, so use it only if users frequently search the contents of files on this server.
Identify the folders that you want to share on the computer, and specify a folder name and description. Users view the shared resources on this file server based on file name. It is recommended that you create share names that are easy to remember and indicative of the folder contents. For example, suppose users are provided with 2 gigabytes (GB) each for storing their private information on the file server. You might name the top-level folder on your file server Personal Folders, and then name each of the subfolders according to the user's domain name.
Determine what type of permissions you want to set on the folders. Assign the most restrictive permissions that still allow users to perform required tasks. Access control on the NTFS file system provides more security than share permissions alone.
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