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Microsoft enterprise concepts

Microsoft enterprise concepts. NetBIOS driver. Redirectors. Servers. WinSock driver. Transport Driver Interface. Streams. Transport Protocols. NDIS Interface. Streams. Network Adapter Card Drivers. Network Interface Card. NT Layered Network Architecture. 7. Application. User Mode.

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Microsoft enterprise concepts

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  1. Microsoft enterprise concepts

  2. NetBIOS driver Redirectors Servers WinSock driver Transport Driver Interface Streams Transport Protocols NDIS Interface Streams Network Adapter Card Drivers Network Interface Card NT Layered Network Architecture 7. Application User Mode 6. Presentation Kernel Mode 5. Session 4. Transport 3. Network 2. Data Link LLC MAC 1. Physical

  3. Some basic concepts • NDIS Interface:Network Driver Specification Interface, wraps NIC drivers and allow communication with multiple protocols, binds a NIC to a protocol. • Streams:multiple channels allowing broader bandwidth for data transfer, envelop the protocols. • Transport Driver Interface:allows software drivers (server, redirector, etc) to communicate with protocols. • Redirectors: software in WS that redirect network drives, printers requests to network I/O requests. • Servers: software that allows a device to accept requests from other devices.

  4. Standard NT protocols • NetBEUI - NetBIOS Extended User Interface, “native” Windows protocol, not routable. • TCP/IP - implemented through WinSock, routable, supports SNMP, DHCP, WINS. • NWLink (IPX/SPX) - used to connect to Novell NetWare, just a protocol, not access. • DLC - Data Link Control, used to connect to IBM mainframes and HP printers directly connected to a network (server).

  5. Network Resource Access • UNC - Universal Naming Convention • machine name: \\mname <= 15 digits • share name: \sname <= 12 digits • example: \\AL200\HP6 • sharing: net share public= c:\temp • using: net use lpt2: \\Al200\public • also graphical • Master Browsers - allow to see what resources are available • Win 95/NT use Network Neighborhood • MUP driver - Multiple Universal Naming Convention Provider

  6. Workgroups • Peer to Peer • a machine joins a group by declaring (Control Panel) • group names <= 15 digits • servers: DOS with add on, Windows for Workgroups, Windows 95, NT WS and Server. • Low security for shares, with one password for a resource, all can see share names, but in NT. • NT client-server • local and global (more in Domain) • peer-to-peer and guest, should not be allowed • shares require username and password

  7. Domain • Concept:a group of NT machines that share “a security server” - the primary domain controller (PDC VS BDCs) • Windows for Workgroups and Windows 95 can join by selecting as workgroup name the domain name • Users with Windows 95 clients can log on NT server net similarly to NT workstations. • user name <= 20 digits, password <= 14 digits • users have permissions (access) and rights (do something), groups • SAM - Security Account Manager, keep user information • Trust relationships: allow an user to be part of more than one domain. • If A trusts C, users in C can access resources in A (one-way) • two-way trusts : users of both both can access the other

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