Category / Blog / Blog / Network Basic

    Loading posts...
  • Law and Network Security

    An increasing number of legal issues affect how administrators approach network security. If your organisation is a publicly traded company, a government agency, or does business with either, there may be legal…

  • Approaches of Network Security

    Organisations can choose from several approaches to network security. A particular approach, or paradigm, will influence all subsequent security decisions and set the tone for the entire organisation’s network security infrastructure. Network…

  • Security Terminology

    Security professionals have specific terminology. Individuals or system administrators having experience in network administration are probably already familiar with most of these terms. Although most hacking terminology describes the activity or the…

  • Threat Classification

    Your network certainly faces real security threats, and these threats can manifest themselves in a variety forms. There are different ways one might choose to classify the various threats to your system.…

  • The OSI Model

    The Open Systems Interconnect (OSI) model describes how networks communicate (see Table 1-3). It describes the various protocols and activities and states how the protocols and activities relate to each other. This…

  • Basic Network Utilities

    Now that you know what IP addresses and URLs are, you need to be familiar with some basic network utilities. You can execute some network utilities from a command prompt (Windows) or…

  • Analysing Telnet Network Traffic

    Resources                       Files None Machines Windows 10 In this exercise you will use Wireshark to analyse network traffic.  Wireshark is already installed and…

  • Analysing Network Traffic

    Resources                       Files http.pcap Machines Windows 10 In this exercise you will use Wireshark to analyse network traffic.  Wireshark is already installed and…

  • Network Basics

    Before diving into how to protect a network, exploring what networks are, would probably be a good idea.  For many readers this section will be a review, but for some it might…