News

Networking and communication

  • June 30, 2008 30 Jun'08

    Sizing server hardware for virtual machines

    How many virtual machines can you put on a server? Depends upon whether your hardware and virtualisation environment are well-matched. This tip offers four criteria for selecting the right servers for VMs.

  • June 26, 2008 26 Jun'08

    Cisco warns of UCM flaws

    Cisco has warned that several versions of its Unified Call Managers have security problems.

  • June 25, 2008 25 Jun'08

    Telepresence reaches down to smaller businesses

    Telepresence suites are emerging for smaller businesses, as vendors saturate the big end of town.

  • June 24, 2008 24 Jun'08

    Palm Treo 850 info, photos are leaked

    The Palm Treo 850, making an unexpected appearance, was recently leaked.

  • June 16, 2008 16 Jun'08

    Introduction to firewalls

    What is a network firewall? What types of firewalls are there, and which kind best protects your company's data? All of these questions, and more, are answered in our network security firewall guide.

  • June 13, 2008 13 Jun'08

    How can I configure 10 VLANs with 5 unmanaged switches?

    Given a Cisco Layer 3 (L3) switch and 5 unmanaged switches, learn how to create 10 VLANs from our routing and switching expert, Sudhanshu Gupta.