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The followings are the posts under Backdoor Trojan Horse, Browser Hijackers, How To Guide, Internet & Networking Problems, Phishing Emails category

Basic Knowledge About Computer Security

Published November 26th, 2015 by Tee Support Agents
  • What is a Port?

Path in and out of computers. Serial port and parallel port in personal computer is the external slot used to insert into and connect a communication line, modem and printer. In the process of programming, the port can be a symbol interface; it can also come from the application or utility.

  • What is a Firewall?

The software or hardware facility to achieve the effect of network and information security by isolating the rest of the Internet from the subnet of the Internet. Firewalls can be installed in a separate router, used to filter unwanted packets, and can also be installed in the router and the host to play a greater role in the protection of network security. Firewalls are widely used to allow users to access the Internet after a security barrier, but also to be used to separate the public network service and the enterprise internal network. In addition, the firewall can be used to protect the security of a part of the enterprise internal network. For example, a research or accounting network may be vulnerable to a glimpse from the enterprise internal network.
The firewall can determine which internal services allow external access, which outsiders are allowed to access the internal services, which external services can be accessed by the internal staff. In order to make the firewall work, all the information from and to the Internet must be in and out via the firewall. The firewall only allows the authorized information to pass through, and the firewall itself cannot be penetrated. Read the rest of this post »

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What is Network Security?

Published November 25th, 2015 by Tee Support Agents

Network security means the network system hardware, software and its system data are protected, not by accidental or malicious reasons, damaged, changed and disclosed; with continuous and reliable system operation and not interrupted network service.

Preface

With the Internet as the representative of the global information technology is becoming more and more profound, the application of information network technology is becoming more and more popular and widely used. At the same time, the strong cyclone of Internet also at amazing speed penetrates all aspects of the enterprise. Now, large enterprises have already used the existing network technology to build their own network carrier, including sales, promotion, service, ARP, ERP, etc., providing strong support to the development of enterprises.
The network information an enterprise engages has direct relation to the company’s development, while the company involves business secret and network transactions which once disclosed, its image and reputation will be directly influenced. So in order to protect network security, a design for network security is required.
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What is Computer Security?

Published November 25th, 2015 by Tee Support Agents

According to International Standardization Committee, Computer Security is defined as “Security protection for data processing system and applied technique and management, protecting computer hardware, software, data from being damaged, changed and exposed, accidentally or maliciously.”

The U.S. Defense Department National Computer Security Center defines it as “To discuss computer security, security demand must be stated first … Generally speaking, a safe system will utilize some special security features to control access to information, that only those who gain appropriate authority, or the process under whose name, are capable of reading, writing, creating and deleting the information.”

Some other authority also defines that “Computer security refers to the security of computer assets, that is, the computer information system resources and information resources are not affected by natural and man-made harmful factors and hazards.”

Network security classification and the basic function

According to the national computer security standard, computer security can be divided into three types. The first one is the entity security, including the computer room, the line and the host computer, etc.; the second one is the network and information security, including the smoothness and accuracy of the network and the Internet information security; the third one is the application security, including the security of program development and operation, input and output, database, etc. The following focuses on the second type – network and information security issues.
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How to Remove Do Searches (do.searches.com) Browser Hijacker?

Published October 22nd, 2013 by Dim Miller

“It seems that Do Searches (http://dosearches.com) pops up every time I open by browsers. It happens since I installed a program on my computer a few days ago, but I’ve never heard about Do Searches.” If you got the same problem, you should learn the Do Searches first, and then try to remove Do Searches by yourself.

Do Searches Description

Do Searches (http://dosearches.com) can be classified as a browser hijacker virus that invades target computer without users’ permission. What strange is that users will never know how can they get this annoying thing, because every time they open their browsers, Do Searches (http://dosearches.com) appears and set itself as the homepages of all browsers including Internet Explorer, Google Chrome and Mozilla Firefox. Users are recommended to remove Do Searches (http://dosearches.com) from their computer, because if you leave it in your PC, it will cause many other problems. New tabs pop up and jump to this site or other unfamiliar web sites; searching results may be redirected to unknown web pages. What is more, Do Searches (http://dosearches.com) will change the default browser settings such as homepages, DNS settings or default search engines.

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Over Ridden by http:///?fr=fp-tyc9 (Removal Guide)

Published January 27th, 2013 by Elena Dove Reagan

We have received many complaints from Mozilla users recently that they have encountered an annoying scene that http:///?fr=fp-tyc9 replaces homepage regardless of how many times people set Mozilla back to default, use malware program to remove it, uninstalled Mozilla. They asked to remove since some suspected that the yahoo toolbar is culprit. Whatever the course is, the first thing we should do is to get rid of the condition because there may be some potential harms consuming the compromise computer. Better keep reading.

Potential Harms

There are usually 2 major reasons for constantly getting a different start up page:

  1. The setting is modified again when you are surfing;
  2. An automatic connection to vicious site roots inside your system.

It is clear that a loophole is ready in your system. If you keep it alive, your computer will be much less alive then as a loophole is able to allow random files to be conveyed, generally speaking, the amount is pretty large; allow arbitrary malware installation if there’s any running across the loophole. A loophole also runs errands for a third party, making unauthorized access come into being. In other word, your information security might be under the risk of exposure.

You may raise your vigilance if you ever encounter the stubborn situation to get http:///?fr=fp-tyc9 off your start up page, as there may be some modifications on your system. A modified system would destroy programs that can be used to open Internet protocol; cause weird running such as:

  1. Read the rest of this post »
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How to Fix “Internet Explorer crashes or stops working” Problem

Published August 23rd, 2011 by Jessie Smith

Does your Internet Explorer keep having this issue “Internet Explorer crashes or stops working”? This step-by-step guide can help you out.

“Internet Explorer crashes or stops working”:

Your computer freezes a lot and when you’re trying to open web browser and search something, you’re getting same message of ” Internet Explorer has stopped working”, what you can do at this moment.

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