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Network Security

A network is composed of an interconnected group of computers. While this is a very beneficial concept for participants in the network, it also presents opportunities for more unscrupulous people who, by gaining access to a single computer, can extend their reach throughout the network and spread across every computer connected. Since the very first networks were set up, administrators have had to balance network security issues against limiting the freedom and convenience factors that give networks their reason for existing.

Network administrators have many security issues to concern themselves with, and the growth of wireless networks and intranets present new and formidable challenges. Here is a short list of some of the most typical threats to network security.

Viruses - Viruses can easily spread through network security from a single infected computer. Worms and Trojans are in the same category as viruses.

Malware and Spyware - These also easily slip through network security, and are more malicious in their operation. These programs can report sensitive information back to their originators.

Social Engineering - This one may sound harmless but in reality it is most definatley not harmless. what ever ers posing as associates or support personnel simply ask for passwords and other sensitive information, and it's given to them more often then you would wish to believe.

Phishing - A more sophisticated version of Social Engineering, Phishing involves the skillful imitation of actual companies in order to get users to divulge passwords and other sensitive information to them.

Network Security Camera

A Network security Camera is mostly a network device that allows a customer or user to view live motion video from any place inside a computer network and even on the Internet through a standard web browser like mozilla firefox.

Until recently, video surveillance and security was established with the help of Closed Circuit Television . This modern technology contains analog cameras, video tape recorders and coaxial cables. Video network security and Network security or security surveillance was inserted into this technological period with the introduction of CCD sensors that made the image capture input digital signal in the cameras. However, signal transmission was still in analog form via coax to analog Video Cassette Recorders.

Next thing was the advent of Digital Video Recorders connected directly to the analog cameras. These made storing, searching as well as retrieving video more efficient. Personal computers were later introduced to display the images. The whole system was made digital when the first network security Cameras arrived, which contained onboard processors as well as specific web server network security software. These Network security Cameras can be directly connected to the existing networks. This way images can be viewed thoroughly, network security cameras can be managed from anywhere using an internet browser or network security related software and any hard drive on the network can be set up to recording the video output. Just like any other product, IP network security cameras have got their advantages and disadvantages. Below you can find some of the network security cameras advantages and disadvantages.

Network security Camera Advantages
Two-way audio using a single network cable allows for live transmittion of the data (or media) over the network. Higher image resolution IP network security cameras have a much higher resolution as compared to analog network security cameras and they give a higher quality image. Mobility and flexibility in IP network security cameras is good as they can be moved freely around on an IP network even on wireless network security networks. Other sorts of data transmittions that can be achieved with IP network security cameras and video analytics is able to be placed in the camera itself which allows for scalability in the analytics solutions.
Encryption & authentication: IP cameras do offer secure data transmission through encryption and authentication mechanisms like WEP, WPA and TKIP.
Remote accessibility: Real-time video is able to be viewed from any workstation on the network and also management can be done from anywhere on the network.

Network security Camera disadvantages
A common disadvantage with network security cameras is a lack of standards. Different IP cameras can encode video differently or even be interfaced differently hence requiring matching the camera and the recorder. High network bandwidth requirements due to their high resolution is required by IP cameras in order to function well. Liability to hacking due to the exposure to the internet is also a real possibility. IP network security cameras can be easily hacked and the information they are handling vandalized.

Wireless Network Security

This small article about wireless network security will try to give you important facts about basic wireless network security used nowadays on the internet. If you are a wireless network user, it is important that you ensure that your network is as secure as it gets. The moment you allow your network to stay open and insecure, you are exposing yourself to a lot wireless network security intrusions.
Before beginning this article about wireless network security, it is sagnificant that you learn some basic information involving wireless LAN routers, modems or other products. Most times, when these routers are manufactured and shipped to users around the world, they lack security measures. All security features that would normally protect the network are by default turned off.
This means that when you incorporate these products in your home networking, you will need to turn all these security aspects on to ensure that your wireless network is totally safe and sound. It is considerable that you get indepth on how to establish that these wireless network security features are activated safely.
If you have a wireless network that is not considered to be “secure”, you will find that your connection is typically slower. This is basically because there are individuals who go around searching for areas where they can access the internet for free. Wireless networks that are not secure are a prime target.
Did you know that when you share your internet connection illegally you may have trouble with the internet service provider? Furthermore, other unidentified users like hackers can take advantage of this situation in order to gain unauthorized access to private information on your computer system.
When you have a wireless internet connection in your home networking, it is important to understand that the internet signal that you have is carried by airwaves. This means that anyone who is within “range” of the modem that is broadcasting the signal can access your internet connection.
When connecting to the internet through wireless connection, you should get the basics done when it comes to wireless network security on the internet. The absolute basics are as plain as having anti-virus software. Throughout this article, you will be introduced to the basics of internet security for wireless networks.
As mentioned previously, installing and implementing the use of a good anti-virus program is essential when it comes to internet security. Viruses are programs that consist of many different types of malicious codes that invade the computer and control various aspects of your operating system.
Once you sign up for the anti-virus program, it is important to ensure that you understand that it will be required to subscribe to the service. You may have to pay monthly or yearly for this subscription. Generally, this subscription is not very costly. However, it is a necessary expense that is well worth it.
Although the default operating system firewall is an efficient aspect of security, especially when it comes to wireless network security, it is not the only effective measure that should be taken. Most routers or modems that are used to allow wireless connectivity may also have a built in firewall feature. It is important that this feature is activated as well.

In addition to implementing the use of an anti-virus program, an operating system firewall, as well as a firewall program on a router, it is also important to ensure that you set up a password that protects the wireless network security protocol. This password should include a combination of letters and numbers that noone else should be able to find out.

It is mandatory that when you create your password that you make it as long, as unique and personal as possible. For instance, try to avoid using easy and linear passwords like “a1b2c3d4e5…”, and passwords that many individuals may be able to crack effectively without any wireless network security skills.

Wireless network security manufacturers

Manufacturers of Wireless Networks have done a spectacular work of marketing their network security technology. Although it is used in many large companies, it is the customer or user that is of importance. Many of the wireless devices are easy to setup and can have you working from anywhere in the house or the backyard in minutes. What most people don't understand is you pay a price for ease of installation and use. Just a short while ago I was speaking with someone I met on an airplane who told me a story about how she was at a friends house and needed internet access from her laptop.

Network security Threat assessment :

Network security Threat Management includes setting up an Network security Intrusion Detection System . An Network security Intrusion Detection System is a real time framework or system that monitors the threats or attacks coming to the network. A properly implemented solution is an enterprise-wide risk management solution that enables organizations to easily manage threats, attacks, intrusions and security malfunctions. This Network security solution collects security information from across your network and eliminates false-positives to help administrators quickly identify real security threats and respond with adequate security measures. Threat management can integrate risk event-data from almost any electronic source, aggregate mountains of electronic risk-data, and automatically correlate, analyze, and arranging risks. It also supplies real time warnings in addition to conserving records of the intrusions from start to finish and works with existing technology deployed by the enterprise.

Network Security Threat
A Network Security Threat is a possible danger to network data or a system within a network.
Here's an example: the ability to gain unauthorized access to systems or information in order to commit fraud, network intrusion, industrialespionage, identity theft, or simply to disrupt the system or network
There may be weaknesses that greatly increase the likelihood of a threat manifesting
Threats may include equipment failure,structured attacks, natural disasters,physical attacks, theft, viruses andmany other potential events causingdanger or damage

Network Security Software

There are many different kinds of network security software on the internet. See some of those categories below.

Free Miscellaneous Security Network Security Software

Network Security tools, utilities and software for different aspects of network security and implementation.

Free Spyware Removal and Blocking Network Security Software
Network Security software to remove spyware and adware from your computer and to help block unscrupulous vendors from placing such software on your computer

Pop-Up and Messenger Spam Blocking Network Security Software
Network Security software to block pop-up and pop-under ads and Windows Messenger Spam

Intrusion Detection (IDS) Network Security Software
Network Security intrusion detection (ids) programs, tools and scripts to help you monitor your network for attempted intrusions or attacks

Email Spam Block Network Security Software
Network Security software applications to help you block and prevent email spam as well as determining the source of the spam

Packet Sniffer Network Security Software
Free tools and software to perform capture and analysis of network packet traffic

Port Scanner Network Security Software
Free software and utilities to scan for open ports on your computer system to help you secure it

Vulnerability Scanning Network Security Software
Links to free vulnerability scanning and security assessment tools

Encryption Network Security Software
Free Network Security software to encrypt your files or hide files within other files like bitmap or jpg images.

Enumeration Network Security Tools
Free Network Security tools to enumerate accounts, devices and other aspects of a target machine or network

Network Monitoring Network Security Software
Network Security utilities and tools to help monitor network activity and performance

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Article by Svetlana Lozovenko
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