Wednesday, May 14, 2008
Home Wireless Network Security Issues
Running a business from home has its advantages, including no commute, a more accommodating work schedule, fresh coffee and home-cooked meals at any time you want.
But running a business from home using a home wireless local area network (WLAN) with your computer may lead to thievery of confidential information and hacker or virus penetration unless proper actions are taken. As WLANs send information back and forth over radio waves, someone with the right type of receiver in your immediate area could be picking up the transmission, thus acquiring access to your computer.
Here is a list of things that you should consider as a result of implementing a home wireless network setup used your business:
Viruses could be loaded onto your laptop which could be transferred to the company's network when you go back to work.
Up to 75 per cent of home wireless network WLAN users do not have standard security features installed, and 20 per cent are left completely open as default configurations and are not secured, but are made for the users to have their network up and running ASAP.
It is recommended that home wireless network router/access point system setups be always done though a wired client.
Always change the default administrative password on your home wireless network router/access points to a secured password.
Enable at least 128-bit WEP encryption on both card and access point. Change your WEP keys periodically. If equipment does not support at least 128-bit WEP encryption, consider replacing it. Although there are security issues with WEP, it represents minimum level of security, and it should be enabled.
Change the default SSID on your router/access point to a hard to guess name. Setup your computer device to connect to this SSID by default.
Setup router/access points so as to not broadcast the SSID. The same SSID needs to be setup on the client side manually. This feature may not be available on all equipment.
Setup your home wireless network router to block anonymous internet requests or pings.
On each computer having a wireless network card, network connection properties should be configured to allow connection to Access Point Networks Only. Computer to computer (peer to peer) connections should not be allowed.
Enable MAC filtering. Deny connection to wireless network for unspecified MAC addresses. MAC or physical addresses are accessible through your computer device wireless network connection setup and they are physically written on network cards. When adding new wireless cards / computer to the network, their MAC addresses should be registered with the router /access point.
Your home wireless network router should have firewall features enabled and demilitarized zone (DMZ) feature disabled. Periodically test your hardware and personal firewalls using Shields Up test available at http://www.grc.com. All computers should have a properly configured personal firewall in addition to a hardware firewall.
Update router/access point firmware when new versions become available.
Locate router/access points away from strangers so they cannot reset the router/access point to default settings. Also, locate router/access points in the middle of the building rather than near windows to limit signal coverage outside the building.
You should know that nothing is 100%. While none of the actions suggested above will provide full 100% protection, countermeasures do exist that will help. The good collection of suggested preventative actions contained herein can help you deter an intruder trying to access your home wireless network. This deterrant then makes other insecure networks easier targets for the intruder to persue.
Greg Lietz is an internet business man, freelance writer and computer enthusiast. His websites provide information on wireless internet networking and personal computer hardware that may be of interest to you.
Learning Ping Pong on a Budget through Table Tennis Video Clips
Nearly all sports have their instructional videos. Basketball videos can teach you how to shoot a ball into a hoop while evading oncoming opponents; soccer videos can instruct you how to kick a ball into a goal while skirting fearlessly and easily past coming defense, ala Diego Maradona; and table tennis videos can show you how to send a little hollow ball hurtling and spinning through the air, so that it can get into your opponents play but without your opponent hitting it. Instructional videos will show you how to score and succeed, and can even teach you a thing or two of your sport of choices history, so that you can appreciate the game better.
Many sports instructional videos, however, can be expensive. This has prompted many entrepreneurs, as well as professional players, to launch their own websites and provide free instructional video clips. Table tennis is no exception: you can find table tennis video clips online, and whether they are free or paid-per-view, they can help you understand table tennis and play the sport well.
Some table tennis video clips will simply show you the history of the sport, along with its rules and regulations, and with the current leaders in the game. Although this can be boring for a player who is not into lectures and classes, it can help you understand why certain rules are made in certain ways. Video clips of table tennis rules can also make you visualize rule violations better, so that you can score games correctly in the future. Moreover, if you see the sports current best players in action, you can have some people to look up to in order to improve your game.
Some table tennis video clips will show you the physics behind the game. They will explain how different playing surfaces can affect the trajectory of the ball, or the ability of players to play a game well. They will explain how the two different paddle surfaces can send the ball flying in different directions, and with varying spins. Watch such video clips very carefully, as they will show you all the things you need to strategize successfully for a great game of table tennis.
Other table tennis video clips will show you how to play the game: you need to know the different ways of handling the table tennis paddle, and how each handling method affects your play; you also need to know how certain postures and movements on your part can lead to injury if you are not careful during your table tennis game. Have a paddle on hand while you are watching table tennis video clips. As this is an instructional video, you need to watch it on your feet, and in players position, as though you were ready to play a game.
Still other table tennis video clips will show table tennis games in action. Watch how the game swiftly changes, and how the pace is frenetic throughout. You need to maintain this level of energy in your table tennis game, so watch how the players utilize their energy so that it stays up throughout their play. If you can, slow down the video so you can see how certain successful shots are made. This way, you can fully appreciate the difficulty of the game, and perhaps be pressed to learning even more about how to play table tennis even better.
Table tennis video clips provide a cheaper alternative to buying whole videos. You can skip parts that you fully understand and appreciate, and you can watch the parts that you like and need over and over again. There are many sources of table tennis video clips online: all you need to do is search for them through your favorite search engine, and look for sites that offer credible table tennis video clips for free, or for the lowest price. With practice and observation, you can turn your table tennis game around, thanks to table tennis video clips.
Mario Churchill is a freelance author and has written over 200 articles on various subjects. For more information on table tennis, also called ping pong, checkout his recommended websites.