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38 Articles Under This Category
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The O.S.I. Model And What It Has To Do With Networks -
Dennis Levenhagen (437)    
I should define the word packet before I start. A packet is a message that is sent over the network from one node (Computer) to another node. The packet includes the address of the node that sent the packet, the address of the node the packet is being sent to and data.
I feel that a person... ( added 7 days 2 hours ago.) |
Why Network Documentation Is So Important -
DefendTheNet (399) 
You may reprint or publish this article free of charge as long as the bylines are included.
Original URL (The Web version of the article)
Title Why Network Documentation Is So Important
Undocumented Networks ------------ I can't tell you how many projects I've worked on in which the... ( added 3 years 324 days ago.) |
Sharing an Internet Connection over a Wi-Fi Network -
Lee Asher (2,460)  
Lee Asher
Once you've got your wireless network set up, I've no doubt that one of
the first things you'll want to do with it is share an Internet
connection -- after all, that's why most home users put in a wireless
network to begin with. Well, the good news is that Windows has Internet
Connection... ( added 3 years 348 days ago.) |
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How Do Wireless Networks Work? -
Lee Asher (2,460)
Lee Asher
Wireless networks work using radio waves instead of wires to transmit
data between computers. That's the simple version. The big advantage of
WiFi is its simplicity. You can connect computers anywhere in your home
or office without the need for wires. The computers connect to the
network... ( added 3 years 348 days ago.) |
Wired Network Working Into Wireless Access Points -
Lee Asher (2,460)
Lee Asher
Let's dive into something a little more complex. What if you have a
wired network already, and you're quite happy with the way it performs
-- you see no point in dismantling it and making it wireless when it
works fine as it is. You've got this laptop, though, that you'd really
like to use... ( added 3 years 350 days ago.) |
Networking Structures Explained: Access Point or Ad-hoc? -
Lee Asher (2,460)
Lee Asher
What happens to many people is that they're just about to purchase some
wireless equipment, and then they have a sudden realisation -- they
have no idea how their network layout is going to work with a wireless
connection. Well, there are a few things you need to think about when
you decide... ( added 3 years 360 days ago.) |
Breaking Into Information Technology: Tough, But Rewarding -
Chris Bryant CCIE 12933 (13,765)  
Many newcomers to Information Technology get an overly-optimistic picture of the field from tech school ads that continually make note that "an average MCSE salary is $80.000 a year!".
And if someone's thinking of getting into IT and goes on the internet to do some research, they're met with... ( added 4 years 28 days ago.) |
Cisco CCNA / CCNP Home Lab Tutorial: Buying & Building An Access Server -
Chris Bryant CCIE 12933 (13,765)
A Cisco access server is generally the last item a CCNA or CCNP candidate has on their mind when they're putting together a home lab. The thinking tends to be that since this router isn't really doing anything in the production part of your practice lab, it's not really important.
Once you... ( added 4 years 49 days ago.) |
Cisco Routing: "Ip Default-Network" vs. Static Default Routes -
Chris Bryant CCIE 12933 (13,765)
One point of confusion for some CCNA and CCNP candidates is the difference between configuring a static default route and using the Cisco routing command ip default-network .
At first glance, they appear to do the same thing. Both configure a destination to which packets should be routed if... ( added 4 years 50 days ago.) |
SMS 101 - Short Message Service Explained -
Jim Sherman (184)
Short Message Service (SMS) is a quick and simple way to communicate
short messages via mobile phones, handheld devices, and increasingly
even landline telephones. Commonly known as text messages,
SMSes, or even texts the practice has spread rapidly throughout the
world, evident by the fact... ( added 4 years 106 days ago.) |
Welcome to the world of Knoppix -
Mike Ber (72)
Knoppix is a bootable CD with a collection of GNU/Linux software, automatic hardware detection, and support for many graphics cards, sound cards, SCSI and USB devices and other peripherals. Knoppix can be used as a Linux demo, educational CD, rescue system, or adapted and used as a platform for... ( added 4 years 146 days ago.) |
Surviving The Technical Job Interview -
Chris Bryant CCIE 12933 (13,765)
Ah, the technical interview. Nothing like it. Not only does it cause anxiety, but it causes anxiety for several different reasons. How many people will be asking questions? From experience I can tell you there’s nothing like walking into a room and seeing nine people on the other side of the... ( added 4 years 268 days ago.) |
Penetration Testing: How to Find Unexpected Leverage -
Christopher Healey (0)
When you show up in red at your local emergency room clamoring for the half-baked attention of someone in scrubs, they ask you a few poignant questions, assuming you're exhibiting something remotely resembling consciousness. What they put on the back burner amounts to the bulk of your medical... ( added 1 year 69 days ago.) |
Windows 2003 Installing and Configuring an Authoritative NTP Network Time Server. -
 - Richard N Williams (1,434)
Precision and time synchronisation is highly important for modern computer networks, without synchronisation many time sensitive transactions would be impossible to carry out.
The internal clock in computers does keep time and date information but these Real Time Chips are not designed to... ( added 1 year 130 days ago.) |
How To Install Outdoor Fiber Optic Cables In Underground Ducts And Innerducts -
Colin Yao (309)
:: Duct/Innerduct materials and colors: Fiber ducts are usually made from HDPE (high-density polyethylene), PVC or other compound. They are usually in black or gray. Fiber innerduct is usually orange or yellow. :: Why usually fiber ducts and innerducts are corrugated? Fiber ducts and innerducts... ( added 1 year 171 days ago.) |
What is Time? From Sundials to NTP -
- Richard N Williams (1,434)
Time is an abstract concept. We cannot necessarily see it, touch it or change it, but we are aware that it exists and that is continues to keep passing us by. It has long been thought that time was constant and was the same everywhere in the Universe.
However, Albert Einstein's theories of... ( added 1 year 200 days ago.) |
Passwords - The Key To Your Identity -
Thomas Raef (3)
We all have passwords to access various aspects of our lives.
You may use the same password for all of your logins so it's easy to remember. Or you may have selected a password based on someone's name or town, or birthday, special day or some other common event.
All of these are poor... ( added 2 years 10 days ago.) |
VPN Explained - The Basics of VPN Simplified -
Van Theodorou (114)
The question of exactly how to explain or define a VPN is one that is often up
for discussion amongst today's network consumers and communications providers.
If we look at the literal definition of the words virtual private network, it
can help to understand what is, and what is not, a VPN.... ( added 2 years 134 days ago.) |
What Is Structured Cabling? -
Robert Nixon (280)
As the program manager for a cabling company I often am asked during my performing a 'site survey',"What is structured cabling?".
It is cabling based on a hierarchical star architecture called ‘Star Topology’. First developed by Lockheed in the early 1960’s, it has become the standard for... ( added 3 years 182 days ago.) |
Howto setup an Internet Wi-Fi Hotspot -
Sean Bracken (504) 
This article is designed to help anyone that wants to setup a Wi-Fi Hotspot site or start a business supplying Internet Hotspots. Configuring a FreeRadius server is not for the faint hearted and documentation is sparse. I've tried to keep things simple but if anyone needs help you can reach me at... ( added 3 years 358 days ago.) |
Connecting a Laptop To Multiple Networks -
jitbit (73)
I. CONNECTING A LAPTOP TO MULTIPLE NETWORKS Having a notebook or laptop provides the freedom to be truly mobile. You can work in many places and situations. But this brings an annoyance: if you move your notebook between various different networks, you always have to change network settings.... ( added 4 years 27 days ago.) |
Four Mistakes to Avoid During a Data Center or Server Move/Consolidation -
Amichai Lesser (45)
Server consolidation and data center moves can deliver significant benefits – including cost savings, enhanced business continuity, optimized service management, and improved regulatory compliance.
The impact of this physical displacement should not be underestimated. If you don’t... ( added 4 years 55 days ago.) |
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How to Throw Your First LAN Party -
John Roberts (1,417)
LAN parties are the perfect way to spend a rainy weekend with friends - all it takes is a little planning to make sure that things go smoothly.
Whether you are planning a PC or console oriented LAN party, getting the right mix of gear together is the first and most crucial step. Console... ( added 192 days 19 hours ago.) |
Why do I have such a slow Internet speed? -
- Ian Orzel (36)
It doesn't matter what kind of Internet you have, cable, DSL, dial-up, or even fiber-optic. There are going to be times when your Internet speed will be so slow it's laughable. My job is to show you what sort of things usually go wrong, and to teach you what you can do to correct them and get the... ( added 263 days 6 hours ago.) |
History of Time Keeping, Calendars, Clocks and NTP Servers -
- Richard N Williams (1,434)
Time has always been a fascination for mankind although it has only been recently, thanks to the work of Albert Einstein and others, have we have begun to understand exactly what it is. However, despite our lack of understanding, people have been preoccupied with measuring the passing of time.... ( added 1 year 136 days ago.) |
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38 Articles Total in this category
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