MCT260-Operating Systems I Operating Systems I Networking

MCT260-Operating Systems I 2 Primary Learning Objective Access Resources on a Network

MCT260-Operating Systems I 3 Specific Learning Objectives Identify and define the terms associated with networking Log on and off a computer Browse the network Use the Universal Naming Convention (UNC) Map a network drive Use CLI commands associated with accessing resources on a network Connect to a network printer

MCT260-Operating Systems I 4 Network Group of computers and other devices connected by some type of transmission media (cables, fiber, or wireless) Networks enable users to share devices, software, and information (data); collectively called a network’s resources Two basic types: –Local Area Network (LAN) –Wide Area Network (WAN)

MCT260-Operating Systems I 5 Networks A LAN is a network of computers and other devices confined to relatively small space. The two subtypes are p eer-to- peer and client/server A WAN is a network that spans large distance and connects two or more LANs –The Internet is an example of a very intricate and extensive WAN that spans the globe

MCT260-Operating Systems I 6 Wide Area Network (WAN)

MCT260-Operating Systems I 7 Peer-to-Peer Network A small number of computers communicate on single segment of cable and share each other’s data and devices. Inexpensive and easy to setup.

MCT260-Operating Systems I 8 Client/Server Special computers (known as servers) process data for and facilitate communication between other computers on the network (known as clients) Networking model in which clients use central server to share applications, devices, and data Clients request resources Servers provide resources

MCT260-Operating Systems I 9 Client/Server Network

MCT260-Operating Systems I 10 Client/Server Advantages Centralized Administration: –Only requires one user login account and password –Access to multiple shared resources is better controlled Better security Servers are optimized to handle heavy processing loads Servers can connect more many more computers

MCT260-Operating Systems I 11 Logging On Press + + Enter user name, password, and domain

MCT260-Operating Systems I 12 Logging Off Why log off? –To secure your computer from unauthorized access –You share the same computer with another user –To gain administrative rights to a shared folder or printer Use Start > Log Off > Really Log Off Occasionally you have to use Shut Down then select Log Off UserName (Table 6-2 on Page 177)

MCT260-Operating Systems I 13 Shutting Down Shutting down gives Windows a chance to save information in the computer’s memory to the local disk, cleaning up temporary files, and save changes to the Registry and to your profile. Use Start > Shut Down > OK then turn off the computer when it says it safe to do so. See Table 6-2 on Page 177

MCT260-Operating Systems I 14 Browsing the Network Makes it easy to look for resources on the network but isn’t foolproof. Sometimes it appears that the resource isn’t available when it can still be accessed by mapping. Select My Network Places, click Entire network, Microsoft Network, the domain, the server, and then the shared resource (folder or printer)

MCT260-Operating Systems I 15 Universal Naming Convention (UNC) Network resources on a Microsoft network have a common naming convention which is called the UNC. The UNC consists of two main parts: ServerName and ShareName. The UNC is seen in the form of: \\servername\sharename

MCT260-Operating Systems I 16 UNC Examples The ServerName can be the server name, the fully qualified domain name, or the IP address. These are all the same server. \\cotweb3\schedules \\cotweb3.mccneb.edu\ schedules \\ \ schedules

MCT260-Operating Systems I 17 Temporary Connection To A Resource Click the Start button and select Run from the Start menu. Type the UNC in the Run dialog box. The resource should open, if you are logged in as someone without permissions for the resource you will receive a "challenge box" that allows you to input your correct domain\username.

MCT260-Operating Systems I 18 Challenge Box Note that the user name Includes the domain name also. DomainName\UserName It’s not a good idea to check the “remember my password” check box

MCT260-Operating Systems I 19 Mapping a Resource Used if you frequently access a specific network folder. To map a network folder, you assign it a drive letter, like (J:), so that it appears as a drive in My Computer, Windows Explorer, and in your programs Open and Save dialog boxes. Much faster than having to browse through the network again and again to find it. Use My Network Places, My Computer, CLI, or Windows Explorer to map a drive.

MCT260-Operating Systems I 20 Mapping a Resource Use the Tools menu in Explorer/My Computer or right-click My Computer or My Network Places & select “Map Network Drive”

MCT260-Operating Systems I 21 NET Commands NET CONFIG, NET DIAG, NET HELP, NET INIT, NET LOGOFF, NET LOGON, NET PASSWORD, NET PRINT, NET START, NET STOP, NET TIME, NET USE, NET VER, and NET VIEW To display this list with a description of each command, type NET HELP. To get help with a individual command type NET HELP or NET HELP VIEW

MCT260-Operating Systems I 22 Using Help with NET Commands

MCT260-Operating Systems I 23 NET USE (CLI Map Command) Connects (Maps) or disconnects your computer from a shared resource or displays information about your connections. NET USE Drive: \\ServerName\ShareName\\ServerName\ShareName NET USE Z: \\SRP6\Students

MCT260-Operating Systems I 24 Connecting to a Network Printer Click Add a printer. Select the Network printer option and click Next. Select the Connect to this printer option and click Next.

MCT260-Operating Systems I 25 Select Network Printer Click the + next to the desired network domain or workgroup Click the + next to the desired computer or server, click the desired printer and click Next

MCT260-Operating Systems I 26 Summary Network Terms Logging On/Off Shutting Down Browsing the Network UNC Mapping a Resource NET Commands (NET USE) Connecting to a Network Printer

MCT260-Operating Systems I 27 Homework Assignment Reading –XP Textbook – pp –UNC Handout Lab Exercise 11: Accessing Network Resources Due Date: A Week from Next Tuesday