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    • Troubleshooting VPNs

      Troubleshooting VPNs

      Troubleshooting VPN Services Overview Troubleshooting VPNs typically encompass troubleshooting of the following configuration settings, or aspects of your remote access strategy: IP connectivity. Setting up of remote access connections IPSec IP routing To create VPN connections, there are a few requirements that have to be met: VPN services need to be enabled on the server.

    • TCP/IP

      TCP/IP

      Understanding the Function of Protocols Protocols are rules, standards and procedures that enable information to be communicated in the network environment. The rules and standards that control the way in which computers communicate are referred to as protocols. A few relevant factors to consider when discussing protocols and the network environment are: There are numerous

    • Understanding Ethernet LAN Segmentation

      Understanding Ethernet LAN Segmentation

      LAN Segmentation Overview Network segmentation is the terminology used to describe the process of dividing single Ethernet segments into multiple segments. Network segmentation has the following main advantages: Network performance of the LAN is improved. Network congestion issues can be resolved. Available bandwidth is maximized. A few technologies which you can use to perform network

    • SSL (Secure Sockets Layer)

      SSL (Secure Sockets Layer)

      An Overview on Secure Sockets Layer (SSL) The Secure Sockets Layer (SSL) protocol was developed by Netscape Communications, and enables secure communication over the Internet. SSL works at the transport layer of Transmission Control Protocol/Internet Protocol (TCP/IP), which makes the protocol independent of the application layer protocol functioning on top of it. SSL is an

    • Understanding Internet Connections

      Understanding Internet Connections

      Internet Connectivity Introduction  In most organizations and networks today, Internet connectivity is no longer an additional option, but a necessity. Most organizations that have a networking environment need to provide its employees or users with some form of connectivity to the Internet. E-mail and Web sites have evolved into being important mechanisms for a vast

    • Considerations in Planning a Network Infrastructure

      Considerations in Planning a Network Infrastructure

      Defining Network Infrastructure A network can be defined as the grouping of hardware devices and software components which are necessary to connect devices within the organization, and to connect the organization to other organizations and the Internet. Typical hardware components utilized in a networking environment are network interface cards, computers, routers, hubs, switches, printers, and

    • NetBIOS Node Types

      NetBIOS Node Types

      A NetBIOS node type is a method that a computer uses to resolve a NetBIOS name into an IP address. A NetBIOS node type allows an administrator to configure the order and method that a client uses when resolving NetBIOS names to IP addresses. Understanding how the various node types function will help users to

    • NetBEUI

      NetBEUI

      NetBEUI (NetBIOS Extended User Interface) is a program used for communication between applications installed on separate computers within the same LAN (Local Area Network). It is an upgraded version of NetBIOS and provides much more flexibility and functionality by rearranging the information in a data transmission. Like NetBIOS, NetBEUI is not a networking protocol and

    • Network Load Balancing

      Network Load Balancing

      Network Load Balancing Overview Network Load Balancing (NLB), included in Windows 2000 and Windows Server 2003 can be used if you need to provide increased levels of availability for TCP/IP applications. All versions of Windows Server 2003 include NLB. While NLB is automatically installed, it is not enabled. In a NLB cluster, client requests are

    • Understanding NetBIOS Name Resolution

      Understanding NetBIOS Name Resolution

      NetBIOS, broadcasts names to listening nodes on the network. NetBIOS utilizes a User Datagram Protocol (UDP) query to broadcast names. NetBIOS names identified computers on the network before the introduction of Windows 2000. The NetBIOS name is resolved to an IP address through Windows Internet Name Service (WINS), broadcasting, or the LMHOSTS file. If the

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