Newsletter Archives

How To Configure Reverse Telnet
Occasionally, during your CCNA and CCNP studies, you´ll run into a term that just doesn´t quite make sense to you.
Try One Click Web and Video Conferencing for 15 days
e/pop is used in sales, customer service, training and intra-company meetings to easily communicate complex topics and eliminate unnecessary travel – whether down the hall or around the world.
Myths About Cisco Exams
One of the drawbacks to the Internet is that it allows myths and "friend of a friend" stories to spread quickly, and usually the story becomes more exaggerated as it's passed along.
Router On A Stick
For CCNA and CCNP candidates, it's hard not to laugh the first time you hear the phrase "router on a stick". Let's face it, that's a pretty silly term. But as those who have passed the CCNA and CCNP exams know, this is a vital exam topic that you must know how to configure and troubleshoot....
Passing The CCNA And CCNP: Home Lab Shopping On Ebay
Whether you're just getting ideas for your Cisco home lab or adding to your existing lab, ebay is a great place to get ideas for your lab as well as pick up some great bargains.
Cisco CCNA / CCNP Tutorial: Home Lab Assembly Case Study
Part of your CCNA / CCNP education is deciding what network topology to use when you're putting together your home lab. Some of you are starting with one or two routers or switches, while others are starting with more. A customer recently sent me a list of his Cisco routers and switches that he...
Try One Click Web and Video Conferencing for 15 days
e/pop is used in sales, customer service, training and intra-company meetings to easily communicate complex topics and eliminate unnecessary travel – whether down the hall or around the world.
Wireless Home Networking - Choosing The Right One
There is a real revolution today among CCNA and CCNP candidates. More and more of you are turning your back on "router simulators" and putting your own CCNA and/or CCNP Home Lab together, which is the best way to totally prepare to pass these tough Cisco exams.
Cisco CCNA / CCNP Home Lab: Why You Need An ISDN Simulator
ISDN is a vital topic for today's CCNA and CCNP candidates, especially for the ICND and Intro exams - you've got to know ISDN inside and out to pass those exams. Naturally you want to include it in your home lab.
Passing The CCNA And CCNP Exams: Cisco Home Lab FAQ
There is a real revolution today among CCNA and CCNP candidates. More and more of you are turning your back on "router simulators" and putting your own CCNA and/or CCNP Home Lab together, which is the best way to totally prepare to pass these tough Cisco exams.
Streamline Active Directory Management
ADtoolkit is a comprehensive toolkit designed for Active Directory (AD) administrators of all skill levels. Administrators will minimize their task lists while ensuring accurate, optimized management of any network. This toolkit can be used by any administrator to tackle their own AD task list, or by an administrator in charge, who can pre-configure any tool to distribute to other parts of the organization.
What Are Hosted Applications?
As access to the Internet becomes more widespread with faster, more reliable and 'always on' connections becoming the norm the growth of applications using the hosted application model continues to expand.
QualysGuard: Network Security Check
Maintaining a secure network requires regular checks to make certain that there are no misconfigured systems on your network, and that all of your systems are properly patched.
Try One Click Web and Video Conferencing for 15 days
e/pop Web Conferencing software provides state-of-the art PowerPoint, document, application and desktop sharing, remote control, and multiparty audio and video conferencing.
Taking A Look At The CCVP
I hardly have to tell you how important voice technologies are in today's networks; what we all need to keep in mind to maximize our career potential is how important knowing voice is going to be tomorrow.
Vernier Extends Network Access Management
Vernier announced today their extension of the EdgeWall product line by way of the EdgeWall Rx network. The new network extends network access management to remote users and strengthens its network security technology by adding support for VoIP phone and bolsters existing support for laptops, desktops and servers.
Computer Associates Int’l Integrating EHealth And Spectrum
Islandia N.Y. based Computer Associates International (CA) announced on Tuesday they are integrating eHealth and SPECTRUM. This move stems from their efforts to meld the acquired Concord Communications into their network through the integration of their "best-in-class" products.
Cisco Weaves Virtualization Into Server Fabric
The VFrame system management software from Cisco has been updated to version 3.0 in a new release. Networking poses a difficult enough challenge for administrators, and the difficulty increases as more hardware joins the system.
IP Default - Gateway
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.
Buying And Building An Access Server
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.
How Will Your Network Be Compromised?
Every time I attend a "Security Guru's" meeting, I'm amazed by how much time and effort is spent on discussing the complex hacking and computer compromise of computer networks and systems.
New Mobile Router From Vodafone, Linksys And Cisco

Vodafone, Linksys and Cisco Systems have launched the new 3G/UMTS Router tuesday, which provides mobile data connectivity at high speeds.

Sun To Introduce Galaxy Servers
Today, Sun Microsystems is expected to introduce its new line of 64-bit network servers, which are code-named Galaxy, and use dual-core Opteron processors from AMD.
Network Management And Monitoring Software

Many products on the market today provide analytical information to those who are responsible for the management of networked systems or what the users of those systems commonly call "The Network".

OpenView Open To Hacking
French tech security firm FrSIRT has reported on a high-risk flaw in HP's network management tool.
Host, Dig

I tend to use "dig" for DNS lookups, but it's more habit than anything else. The main page for host says "host is a simple utility for performing DNS lookup" while dig's brags "Most DNS administrators use dig to troubleshoot DNS problems because of its flexibility, ease of use and clarity of output. Other lookup tools tend to have less functionality than dig."

Top 5 Reasons Why CAT5 KVM Switches Solve Common KVM Switch Limitations
Simplifying server rack environments by introducing a CAT5 KVM to help ease server cabinet clutter is an example of how beneficial UTP cabling can be. This article will analyze additional techniques of how to simplify KVM management at the rack and in busy operation centers by using CAT5 UTP cabling.
42U Server Management: 5 Easy Steps To Beef Up Your KVM Architecture

Discover how to clean up your server room or desk top by examining 5 easy steps to beef up your current KVM solution. With several diverse KVM solutions currently available, this article will take a look at simple options to utilize current KVM switch technology to upgrade your data center environment.

Benefiting From Remote Reboot Power Management
Remote reboot power management can be an excellent stand-alone solution or when combined with a KVM management system. Completing a true ‘lights out' operations center can happen easily by introducing a simple remote reboot power management solution.
Your Path To The CCNA

Congratulations! You've made the decision to pursue your Cisco Certified Network Associate certification. Whether you're just getting started, or you've been reading and working on the certification already, you'll be glad to know that you are already 90% of the way there.

A Guide To ARP
When I first started studying for my CCNA years ago, one of the (many) things that confused me was ARP. Or rather, what ARP did as opposed to Reverse ARP, Inverse ARP, and Proxy ARP! One book would mention ARP without mentioning the other variations, one woule mention RARP but not Proxy ARP, and so on...
YAWNA - Yet Another Wireless Networking Article

The consumer-level wireless networking market has exploded over the past few years. Unfortunately, manufacturers have been lax in explaining the potential security risks associated with their products.

Introduction: IP Spoofing
An article on "Security Problems in the TCP/IP Protocol Suite" by S.M.Bellovin in 1989 initially explored IP Spoofing attacks . He described how Robert Morris, creator of the now infamous Internet Worm, figured out how TCP created sequence numbers and forged a TCP packet sequence.
Securing WVoIP

Wireless security software developer Columbitech recently announced wireless VPN support for securing wireless voice applications (wVoIP).

Cisco Certification: The OSI Model Isn't Just For Exams Anymore!
There's nothing I enjoy more than teaching Cisco technologies, especially CCNA candidates. Whether it's in-person or online, everyone's excited to be there.
Cisco Routes New Routers To ISPs

Cisco Systems announced major advancements in their Internet Protocol Next Generation Networks yesterday in the form of router enhancements and new products that will allow ISPs to go the next level of service for their customers.

Basic DNS: PTR Records And Why You Care
A PTR record is what lets someone do a "reverse" DNS lookup - that is, they have your IP address and want to know what your host/domain is. At any Unix/Linux command line, you can use "dig -x" to do a reverse lookup...
Cisco CCNA Certification: Why You MUST Have Hands-On Experience

CCNA and CCNP candidates hear it all the time: "you have to get some hands-on experience to pass the exams".

Candidates tend to think that's just so they can solve the simulator problems, but that's only the more obvious reason.

Cisco CCNP Certification: Introduction To BGP
Cisco certification candidates are introduced to BGP at the CCNP level, but the reaction to its introduction always reminds me of something I see often as the CCNA level.
Configuring Basic Cisco Router Security
Network security is a hot topic today, and will only increase in importance in the months and years ahead. While most of the attention is paid to exterior threats, there are some steps you can take to prevent unwanted Cisco router access from within your organization.
Surviving The Cisco Cable Jungle
One of the most confusing parts of beginning your Cisco studies is keeping all the cable types separate in your mind, and then remembering what they're used for.
Securing Your Wireless Home Network
Do you have a wireless network installed in your home? Chances are that you do. If so, did you know that hackers might be using your Internet connection without your knowledge or consent?
Cisco CCNA Exam Tracks
With the latest version of the CCNA exam, Cisco offers two possible exam track options of either one or two exams.
Secure Distributed Network Management System
Our flagship product, SNMPc, delivers proactive real-time monitoring for your entire network infrastructure. Advanced product features and legendary ease of use have led to over 120,000 network managers trusting SNMPc to monitor their mission critical networks.
Debug And Show Commands For ISDN
The major reason I recommend getting your hands on real Cisco equipment rather than a simulator is that real Cisco routers give you the chance to practice and learn show and debug commands.
Do you have the right Network Management Software
Professional Network Management Software. Free up valuable man hours. Turn your IT focus from reactive to proactive. Paessler IPCheck Server Monitor and PRTG Traffic Grapher Software: easy to use, state of the art and cost effective. Keep your business on track.
Memories Of A Cisco Router
It may often seem like nothing more than a sleek metal box on the outside, but the internal memory components of a Cisco router represent where much of the real magic takes place.
Google May Be The Favored Tool Of Hackers In 2005
Using robots.txt and other techniques to prevent indexing is a best practice for non-public systems and the various components supporting public systems. Treat all Internet-facing devices -- even apparently obscure ones such as network cameras -- as relevant to security
Switching Your Way To Better Network Performance
At the end of the day, the roles played by a bridge and a switch are more or less identical - they help to break a network up into a number of smaller collision domains. Recall from earlier in the series that a collision domain is simply a group of computers amongst which data collisions can occur. For example, when connecting systems using a hub, all systems are considered to be part of the same collision domain, since the hub will simply forward data out all ports, with no regard for where the actual destination host is located.
Home-networking your PDA: Why would you want to do that?
As I've stated in the past, a PDA can offer you almost as much power as your home or office computer if it's used the right way. The PDA was designed for mobility, and one of the ways to capitalize on the mobility is to take advantage of wireless networking. There's nothing like the ability to keep in touch with the outside world without being confined to a desk! To accomplish total freedom from your desk, we're going to show you how set up a wireless network for your PDA.

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