GuidanceLine

If you really want to defend yourself against spyware, then you are going to need to have a firewall on your computer. This is a form of computer security that will block any unauthorized access to your computer or the local area network (LAN) that you are on. A firewall is a great defense against any type of spyware that you may encounter. This works by transferring traffic between computer networks.

Each of these networks is given a trust level that you set within the firewall itself. For instance, the Internet is usually considered to be a zone that you do not, whereas an internal network would be given a higher level of trust by your firewall. Of course, you can also set an intermediate amount of trust for various things as well.

In order for your firewall to be worthwhile, you are going to need to make sure that it is properly configured. Using standard security practices will only allow you to have access to the network connections that you have explicitly allowed. However, in order for this to work, you are going to need to have a detailed understanding of the network applications that will need to be used by the organization on a day-to-day basis.

Unfortunately there are a lot of people who do not understand this and therefore they implement a “default-allow” rule set. Herein all traffic is allowed access to your computer unless it has been specifically blocked. This is not good because it inadvertently allows the network connections to be compromised.

Whenever you have your firewall set up properly, it can do a lot of great things. For instance, it will tell you how many time someone has tried to hack into your computer and it will also eliminate and destroy any incoming spyware and adware. Nevertheless, just having a firewall is not enough. You will also need other protection.

Your home computer should have firewall, virus scanner and anti-spyware or anti-adware software installed. Keep these software updated with latest security patches and latest updates to avoid any intrusion happening in your system.

Function of Firewall

The basic role of firewall is to monitor or regulate the traffic between computer networks with different security and trust level. Internet is open zone with no trust and when you are connecting your system, which is high trust zone to internet, you are open to internet attacks. What you need is an intermediate layer, where before downloading any data packet or any internet request is verified for virus, spyware, adware or any other kind of security threat to your system.

This intermediate layer is also called as demilitarized zone (DMZ). This ensures all security risks are analyzed outside the system and helps in minimizing in attacks on your system. Now, firewall can be hardware or software, depending upon needs of an individual or a company. Big companies create DMZ area where all request are scanned and verified before they are allowed to access company systems. The DMZ servers help corporate business in safeguarding their vital data. On an individual level firewall software is installed to cover system/application software from getting infected by virus or worms. Firewall creates security ring around your system to avoid attack from spyware, adware or any other kind of virus being installed on your system.

Types of Firewall

Network layer and packet filters

These are also called as packet filters. The packet filters operate relatively at low level of the communication stack. The packet filters will ensure no communication packet passes without meeting rule set established by firewall. The rule set can be defined either during installation of firewall or later can be changed by administrator of system.

Application Layer

This type of firewall works on application level, such that traffic related to browser or FTP is monitored for authorization and security risk. The firewall will intercept all packets moving from one application to other application and blocks improper content, unwanted traffic to secure applications.

Network address translation

This relates to hiding the true address of protected host machine. Firewall has NAT functionality to protect true address of host. The NAT stands for “Network Address Translation” and is used as defense mechanism against network reconnaissance.

Finally, firewall blocks security attacks to your computer, keeps hackers away from your system, hides system address and creates safe and secure environment for your business or your personal system to work seamless.

When you attend training, what do you get? Well, what you paid for, of course. But what if you find that you have paid for the wrong track? Or you found that the course is too easy for you? How easy is it for you to switch to another course then? Do you have to wait for a few days? Weeks? Or indefinitely? Do you have to tolerate all that basic stuff till near the end of the course duration and get what you came for? Can you ask the instructor to skip topics when the rest of the class seems to be junior at it? Is the trainer willing to give you more than what is beyond the paid course contents? Just how much more? Do you have to worry about sitting for tests at the end of the lesson that seem to test your language more than your skills? Wait! Does that classroom air-condition temperature seem perpetually freezing? Or like in the oven?

Why do I raise these issues? The simple answer is - they are the constant frustrations of classroom training attendees I hear time and time again. Chances are, you faced some or all of these issues yourself. Software trainers with some years of experience report the feedback on course structure, targeted content and administrative ease, contain these disappointing remarks. It is true that flexibility, targeted contents and practicality play significant roles on the impact of the entire course - not just the experience and proficiency of the trainer. And there is the test or examination factor. For many of these attendees who came for knowledge, the test or exam factor actually shortchanged them of course hours, more hands-on and a conducive learning atmosphere. Adding on, some examination systems seem to take an eternity to log on to, owing to server delays, network traffic or bad programming. In short, participants do not get the satisfaction and objective they hoped for. It is a one-size-fits-all solution with limited or no repeat broadcast. Refresher sessions a few months down the road are virtually non-existent. Or it comes with a reluctant ‘yes’ on the provider’s part (after much convincing on the trainees’ part), along with a hefty ‘token’ fee.

What really counts, is that attendees learn something out of the course. That their understanding of the application increases. That they can make use of the application in the field - when they have to produce something, and have the confidence to assert that the application can do this and that; or that some things are out of the application scope. Right? So that is why I advocate flexible, practical, targeted online training that give the participants control over their learning or needs.

Here are what I find appealing about virtual training:

1. Participants can sample tutorials before deciding.

2. Participants can repeat lessons as often as they wish.

3. Participants can pause the instructor at their own comfort.

4. Participants can take the course where and when they are most comfortable.

5. Participants can switch to a course that is more suitable for them anytime.

6. Participants can follow their own pace, not the pace of the slowest or fastest learner in class.

7. Participants can take ONLY the topics that they require, not those they already know.

8. Participants can access all other possible topics when they need them. These should include popular software titles like Microsoft Office, Macromedia Flash, Dreamweaver, Adobe Photoshop and technical courses like MCSE, MCSA, CCNA, CompTIA A+ (for PC technologies) and Network+.

9. If the participants themselves are trainers, it is a good, fast, quick and reliable way to revise topics before that BIG delivery day.

10. If participants have an URGENT crash course need, it is within their reach.

And, importantly too, it should not burn a hole in their pockets where affordability is concerned.

In today’s technology driven realm, it is necessary to have a computer. There is no doubt about it, and I’m sure many of you will agree. We computers at work, home, school, even on vacation to keep in touch with our daily lives. So with that said, there are only so many hours in a day, and no one likes a slow computer bogging down their schedule do they?

I know I hate when I’ve got computer problems because it not only takes longer to accomplish the task at hand, but it frustrates me beyond belief! If you have ever had trouble with a computer then you’ve experienced these same feelings. The worst part about it, is that I am not a computer repair man so I don’t know how or what to do when my computer gives me trouble.

So, what do we do if we can’t fix it ourself? We seek assistance and that is the best way to solve problems with technology. With a little bit of assistance you can gain the know how to fix your slow computer quickly and easily.

But, there are several things you can do before seeking assistance on how to fix your slow computer that I’m going to tell you now. The first thing is to run a good anti-virus program. It’s hard enough to solve problems within your computer, the last thing you need is a virus or bug creating even more problems.

The next thing to do is perform frequent updates on your software system to insure your programs and operating system are performing at the peak. If there are missing pieces to the puzzle, this may very well be the culprit of your troubles.

The last and most important is to be very thorough and careful when using the internet and downloaded software programs. Read the directions carefully and follow them to a tee. A lot of times user error can create the problem without even knowing it.

So use these tips and information to your advantage and fix your slow computer and save yourself some headache!

Have you ever thought of building your own computer? If you were ever frustrated with all the prepackaged “software” that comes with a pre-built computer, or ever had to spend hundreds of dollars to get your desktop serviced, you might want to consider building your own computer.

Listed are some reason you might want to build your own computer:

1. A clean new operating system (no prepackaged software).

2. A better understanding of your computer, and computers in general.

3. You can build a machine specific to your needs.

4. If your machine ever becomes obsolete, you can buy new parts instead of a completely new computer.

5. You can save money!

First of all, you need to determine what kind of computer you need. Do you need a small, quiet computer to write reports and spreadsheets? Do you need a powerful video editing/gaming machine? Once you have made that decision, you can move on to picking the parts.

The Motherboard

The motherboard is the most essential component in a computer. Almost everything, including the CPU, RAM, hard drives, disk drives, and optical drives are plugged into the motherboard. I would recommend buying at least a $50 - $100 motherboard. Often, you can find motherboard and CPU combos in this range, which are great for inexpensive home/office computers. Intel Dual Core is perfect for multitasking programs, and is the lowest I would settle for any machine. However, if you want a more powerful machine, you might want to spend a little more on the motherboard and CPU, which leads me to…

The CPU

The CPU, or central processing unit is an older term for processor. The CPU contains the logic cicuitry that performs the instructions of computer programs. Since you are picking your CPU, I will assume you are building a high-end machine, as a motherboard and CPU combo would be fine for anything else. I could settle for Dual Core, but if you want raw processing power, Quad Core is the way to go. I reccomend Intel or AMD, but there are some other manufacturers out there. The most important thing to remember is to make sure it is the right brand and pin configuration to fit you motherboard!

Other Parts

RAM - 2 gigs, at the very least. 4 gigs for a more powerful machine. Make sure it has the correct pin configuration.

Power Supply - If the computer case does not come with a power supply, you need to pick one. Make sure it matches with your motherboard. 300 watts is enough for most machines, but you might want to consider something bigger if you want a gaming rig.

Video Card - 1 gig is enough for most machines, but if you want to edit videos or play games, go for a few gigs. Some motherboards support more than one video card, but at the time of this article, some programs don’t. Good brands to pick from are nVidia and ATI.

Optical Drive - If you want a home/office computer, pick a cheap one. If you want to burn CDs and DVDs, make sure it can handle it. To tell the truth, these aren’t used much anymore. Good read/write speed is optional, but recommended.

Hard Drive - Serial ATA drives are recommended. Around 100 gigs of space, depending on your needs. For a gaming/video editing computer, you can get multiple drives.

Operating System - Windows XP, Windows Vista, or Linux. Windows XP is recommended for the average user, as Windows Vista is not very user-friendly, and Linux is more technical. However, Linux is free, and if you are interested, there are many sites to help you install Linux. Linus isn’t all that hard to install.

Buying The Parts

Online is usually the cheapest, and has the widest selection, but any national chain or local retailer will do.

Building The Computer

Before you start to build your computer, one thing you need to know about is static electricity. If you shock any of the sensitive hardware, it will be useless. Do yourself a favor and buy a grounding bracelet and ground yourself. If not, you run the risk of damaging your components and buying a new one.

Since every set of part will be unique (which is the point), the instructions will differ from person to person. But below is a general outline of what you should do.

Find the motherboard and microprocessor. Align the marked corners and drop the microprocessor into the socket. No force is necessary. Attach in place.

Install the heat sink. The CPU box will have instructions, and you should follow them carefully.

To install the RAM, look for a slot marked “one” and push the module in. It should lock in place.

Now you need to install the motherboard into the case. The case comes with a hole cut in for the motherboard, so all you need to do is line it up, and screw it in.

The case should have a few more slots. These slots are where the hard drive(s) and optical drive go. Slide in the drives, screw them in place, and then attach them to the motherboard. It should be fairly obvious where to plug them in.

If you have a video card, you should install it now. The manual has more detailed instructions for each different card.

Now close up the case, and attach the monitor, keyboard, speakers, and mouse.

Turn it on! You should hear the fans and hard disks going, lights lighting up, and something on the monitor. Now all you have to do is install the operating system. Congratulations!