Firewall Configuration

A firewall is a device or a set of devices, which can be implemented in any of the hardware, software or both. All the messages passing through the firewall are verified to meet some level of security criteria.

It acts as a computer security barrier, which analyzes all the incoming and outgoing traffic to and from your computer or network based on the firewall settings. There are some common types of firewalls like: Application level gateway, Packet filtering firewall, Circuit gateways and Hybrid firewall.

Application level gateway firewall works on the application layer of the protocol stack. It works more intelligently than the packet filtering firewall. Packet filtering firewall examines the information contained in the header of the message packets.

There are some factors based on which the filters can be added or removed from the firewall:

1. IP address

2. Ports

3. Protocols

IP address: Every computer connected to Internet has a unique IP address. The firewall configuration can be customized to block any IP address so that your computer will not allow any kind of communication to take in between.

Ports: The firewall can be configured to allow or block messages from any port number.

Protocols: There are some commonly used protocols like IP, HTTP, TCP, FTP, and SMTP etc., which can be included in the firewall filter.

Some operating systems, such as Microsoft Windows offer built-in firewalls that are turned on by default to block all the incoming threats from Internet. There are several other third party firewalls available. You can choose any one the firewall to replace the default firewall in Windows.

Install Anti-virus

With the increasing pace of Internet usage worldwide, the rate at which the Computer Security systems are being infected is also increasing. Not only the users connected to Internet are infected, but the non-Internet users are also being attacked at the same rate with the use of infected portable storage devices like floppies, CD/DVD, USB flash drives and other for transferring files, data, and other documents among different computer systems.

There has been a tremendous growth in the number of malicious codes developed and spread on Internet. There has been a growth in the virus, spywares, Trojan horse, worms, adware, key loggers and other similar threats. To tackle with this increasing growth of virus and other malicious code on Internet, anti-virus software are simultaneously developed and updated.

In today’s scenario the anti-virus software comes bundled with several additional programs such as firewalls, and spyware removal tools so as to provide a higher level of security to the computer users.

The first line of defense to protect your PC is to install some good anti-virus software carrying the feature of automatic update. The reason behind installing anti-virus software with the automatic update feature is to get the latest protection against the newly released viruses and other malicious codes. The next step is to update the anti-virus with the latest virus definitions.

The install anti-virus software compares the binary code of the content stored on the computer hard disk against the database of virus definitions. When the anti-virus software detects the similar binary code of the virus on the hard disk then it report it as the presence of virus. So, if the virus definition database is updated with the latest virus definitions then your computer system will remain protected against the latest virus attacks.

Common computer problems and Easy fixes

If you have computer, then you have probably face these computer problems before. Once you purchase a computer, you must accept that sooner or later it will eventually crash due to a virus or some other massive error. If someone told you that your computer will last more than a decade, don’t believe it because it is just a myth or another sales pitch. But of course, you should take care of it if you want it to last for its third year without any defects. However, there are many people that would prefer to buy a new computer than spend some time trying to fix or figure out the problem with their laptop or desktop.
Usually you will need some kind of maintenance because your computer will tend to lose its original speed and performance. Well, here are some if the common problems that a computer user usually experience. Most of the time the biggest problem that your computer has is YOU – the owner or the user. There are many people that neglect the first signs of computer problems. You shouldn’t neglect those simple maintenance tasks that can enhance or prolong the life of your computer.
1. Computer speed or performance has slowed. There are several reasons why this happens to your computer. Lack of maintenance, fragmented data, corrupted registry, spyware, and unnecessary loading of computer programs and services can surely affect your PC speed and performance. Managing your programs and cleaning your registry can easily boost your computer’s performance speed up to 30%.
2. Computer system freezes and blue screens of death. You need to do some serious diagnostic procedures to effectively know the problem with your computer. Computer virus or spyware are maybe some of the reasons to your computer. Update your anti-spyware removal immediately to avoid this kind of problem and thoroughly scan your computer to see if it has any viruses or spywares. If you find that your computer is free from spyware then updating your hardware drive is the next step. Hardware drives makes it easier for your computer to effectively communicate with other hardware components. Without an updated driver the CPU locks up and may cause problems when you are using your computer. If that doesn’t work try to increase your Computer RAM to help avoid computer freezes. By increasing the RAM you get more use out your computer's computing power.
3. The computer keeps on rebooting again and again. This kind of problem is usually associated with hardware issue. Faulty power supply is usually the cause of this problem. Dirty or defective cooling fan is another reason why your computer is rebooting spontaneously. When your computer is trying to cool itself when the fan is defective it automatically switches off. Dust that accumulated in your computer can trap the heat inside which makes it hotter. What you should do is to clean the fan and make sure that it is running properly. Do not forget to check your power supply.
4. Noises and vibrations. This one is almost certainly that you have hardware issue. High pitched noises can be caused by electronic components. Whatever the reason, you conduct a small investigation. Unplug your computer and remove the case and run the computer to discover the origin of noise. If a loose wire or faulty fan is not the one that is making the noise then it may be time to call a computer tech to help you with your problem.
5. Your browser home page changed itself. It is known as "high-jacking" which is also caused by a Spyware installed on your system. The spyware in your computer installed a java script into your web browser that tells your browser to change settings hence changing the default home page of your browser. What you can do is to run an anti-virus or spyware program to remove the spyware from your computer. All of the problems stated in this article can be avoided easily by simply maintaining your computer.

Are you looking antivirus support to remove spyware embedded in PC?

Are you looking antivirus support to remove spyware embedded in PC? The typical computer purchase usually comes with some form of installed antivirus software, but it is worth noting that these programs cannot deal with a wide variety of threats such as adware and spyware simply because they cannot detect and destroy them.

Antivirus support program is capable of detecting them while they run. However, you may also want to take note that different programs have different ways of scanning, with some scanning the system memory that the applications use while others scan the files directly to try to detect malware.

Another way Spyware generally costs the user a lot of time not only by slowing down the PC but also displaying many pop up advertisements that distract the user. Also, people tend to spend a lot of time looking for solutions to spyware removal problems online. There are many programs online that can help you scan your computer system for malware and viruses, but not many can permanently get rid of all the detected malicious software.

Some people want to try removing spyware on their PCs manually but usually do not end up with very good results. Some even end up deleting the wrong entries and damaging their computer permanently.

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Computer install to get the desirous software

In today’s computer world no software is the ultimate one. As developer are working deliberately to give the best to the users. Hence, computer install is an essential part, both for beginner and the experts.
For critical software install user can take the help of reputed organization who are offering remote support for installation purpose. But, you must be aware of some general installation procedure so that you don’t have to frequently call them up.
Let’s get acquittal with installation of some important software program on your computer.
Installation for Security software and web browsers
Users can make use of CD/DVD of the latest security software like Windows Defender, Spyware Doctor, No adware and so on. For browser you have plenty of options, you can go for Firefox, Opera, IE 8. If you have the internet connectivity you may go for online download from authentic sites. General steps can be followed as:
STEP 1. Download and save the startup program to a desired location.
STEP 2. Run the setup file and proceed on following the prompts.
STEP 3. Accept the agreement and enter the suitable key words.
STEP 4. Click on “Finish.” Restart your system.
Communication has been revised well with the latest email clients. Programs like email client can be installed internally from the web browser.IE 8 have been designed to automatically launch your default email client.
However, if you have the ambition to install a different email client on your computer, you can change your default client in the browser's Internet Options menu. Proceed as follow:
STEP 1. Explore the Internet Explorer.
STEP 2. Navigate on to the "Tools" menu and select "Internet Options."
STEP 3. Select the "Programs" tab.
STEP 4. Click the button "Set Programs." Select "Set Your Default Programs" from the window that appears.
STEP 5. Select your email client from the list of programs on the left side of the screen. Next, click "Choose defaults for this program."
STEP 6. Check the box next to "Mailto" and click "Save."
Hence, you have got your preferred email client installed on your computer. Hope, that the above computer install article would be useful for you.