Networking

  • Brief introduction to OSI Model Layers

    The OSI model has a network framework consisting of seven layers. These layers are listed in hierarchy from lowest to highest. A brief overview of each level is outlined below. More information can be found in many networking texts and on Wikipedi...
  • Facts About Port Scanning

    Each individual computer runs on multiple ports. For instance, when a person opens his or her email, the computer's server will open a port through which new mail will be downloaded through a connection to the email server. Certain ports on an ind...
  • What is Port Forwarding?

    Port forwarding, or tunneling, is the behind-the-scenes process of intercepting data traffic headed for a computer's IP/port combination and redirecting it to a different IP and/or port. A program that's running on the destination computer (host) ...
  • What is a Port?

    To the uninitiated or the otherwise-gifted computer user, technical geek-speak can be rather frustrating and aggravating. When instructions are filled with such things as "port," "TCP," "UDP," and other acronyms or technical terminology, the user ...
  • What is a Router?

    Before we delve into the world of routers, you need to understand what a broadband connection is and how it works. According to Dictionary.com, broadband is "a high-speed, high-capacity transmission medium that can carry signals from multiple inde...
  • What is Network Address Translation?

    Network Address Translation (NAT) is the process where a network device, usually a firewall, assigns a public address to a computer (or group of computers) inside a private network. The main use of NAT is to limit the number of public IP ...
  • What is DHCP?

    As long as you're learning about your IP address, you should learn a little about something called DHCP—which stands for Dynamic Host Configuration Protocol. Why bother? Because it has a direct impact on millions of IP addresses, most likely inclu...
  • A Wireless Network: Terms You Should Know.

    Setting up a wireless network for the first time. If you haven't set up a wireless network at home yet, you should give it some thought. With the advances of technology over the past several years, it has gotten pretty easy to s...
  • Get More Performance from Your Router

    There are three kinds of Internet users: 1) those who are up to speed on the networking technology that connects us to the Internet and the world; 2) those who let their spouse, friends or neighbors set up and fix their home networks for them at h...
  • IPv6

    Around the world, the availability of new IPv4 addresses is declining. The amount of free space varies by region, but some have already run out of allocations and others are rapidly approaching their limits. As of January 31, 2011, IANA ...
  • Broadcast Domains

    A broadcast domain is the portion of a network sharing the same layer 2 segment. In a network with a single switch without VLANs, the broadcast domain is that entire switch. In a network with multiple interconnected ...
  • How to Find Your IP Address on a Mac

    When your Mac is connected to a network, it is assigned an address on the network called an IP address. The IP address is four sets of digits separated by periods, with up to three digits per set. If the Mac is connected to a network as well as the i...
  • Set up MySQL database replication

    If you use databases then you know how important it is to back them up. But backing up a database and being able to use that backup depends upon the back up being always up to date. There is a method that ensures you wi...
  • Potential Damage Caused by Direct Lightning Strikes

    Did you know that lightning is the single biggest cause of damage to and destruction of electrical and electronic equipment in industrial facilities, commercial buildings, and homes. Due to the ever changing climate and rising temperatures lightning ...
  • What is BS EN 62305-3:2011?

    What is BS EN 62305-3:2011? This part of EN 62305 sets out all the requirements needed to protect buildings and structures against physical damage by implementing a lighting protection system (LPS). It also...
  • Earthing Basics

    Q: In a high-tech age, why is the concept of Earthing so important? A: What is most profound about Earthing is that it is so natural and simple, and that it affects every aspect of human physiology. Wh...
  • 6 common mistakes to avoid in telecom technology grounding

    To minimize costly downtime, keep clear of these common errors that can undermine investment in surge-protection technology.All companies know that downtime is expensive. Downtime caused by inadequately performing protection can le...
  • Optical Fiber: How it Works

    Bill uses a bucket of propylene glycol to show how a fiber opti...
  • Setup Email on Outlook - IONOS Infrastructure

    Please Note In Microsoft Outlook 2016, you can manage multiple email accounts using IMAP (Recommended) or POP3. ...