LANs (Local Area Networks)

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  • Configuring and troubleshooting wireless LAN clients

    An understanding of wireless LAN (WLAN) client and WLAN access point communication mechanisms is critical to anyone attempting to initially connect or troubleshoot a WLAN connection. In this tip, Robbie Harrell discusses some of the issues that can b...  Tip

  • New security features in Internet Explorer 7

    In Internet Explorer 7, Microsoft seems to have addressed many of the security issues that have plagued IE for the last decade. Of course only time will tell if IE 7 is really secure or not, but this tip will introduce you to some of its new security...  Tip

  • Introducing Vista's Network Center

    In Windows Vista Microsoft has made it a lot easier to quickly gather information about how a workstation is connected to a network through a new component called the Network Center. This expert tip will show you what the Network Center is and how it...  Tip

  • Troubleshooting a Windows-based network

    We've all been taught at one time or another that on a Windows network, if at least one domain controller within each domain is functional, then the domain itself should be functional. Sadly, this idea hasn't been completely true since Windows NT wen...  Tip

  • IP network design, part 4: LAN design

    This final section of the IP network design series relates to the issues encountered with campus LAN design. The benefits of Ethernet switching over a traditional hub environment are first explained. The motivation behind the deployment of virtual LA...  Tip

  • Implementing software restriction policies

    This tip explains how you can use software restriction policies to keep your workstations in pristine shape and cut down on help desk calls at the same time.  Tip

  • LAN connectivity problem: Blame DNS, NIC or firewall?

    ITKnowledge Exchange member "BinooDas1234" had connectivity issues with a troublesome LAN, and fellow techies jumped in to help out. But does the answer lie in the DNS configuration, the NIC drivers or elsewhere? Here is a portion of the conversation...  Tip

  • Making sense of Windows routing tables

    When routing packets across a network, things do occasionally go wrong. In these situations, it is helpful to be familiar with the Windows routing tables. Routing tables dictate the flow of packets from the machine in question. This tip will show you...  Tip

  • Router Expert: Building VLAN interfaces in Linux and IOS

    Segmenting a wireless LAN with VLANs can increase security. Find out from our router expert how to support VLAN interfaces in Linux and Cisco IOS.  Tip

  • Router Expert: Building 802.11Q VLANs

    Network segmentation can be a great way to increase security. This article covers segmenting with VLANs and the 802.1Q standard.  Tip

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