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What is Network Security? And Learn About Types of Web Protection | Networking

Network Security and its types of Internet Protection

Image Credit: ZdNet
Network security is all about protection, detection and reaction. In this highly technocrat world, network security has become one the most crucial role player in the economy.

All the paper work, hard copies, etc have now been transferred into our electronic gadgets. From small businesses to multinational companies all have adopted computerised system of working and storing.

With advancement in usage of technology there also comes various threats from competitors in the market like hacking of data of business houses by competitors or other beneficiaries, is the major threat posed to companies.

Network Security is a process of preventing and protecting systems and data stored therein from unauthorised access by outside world, of corporate houses. 

It is a practice to prevent misuse, malfunction, modification, destruction or improper disclosers of corporate houses details in order to create and develop an environment of safety for securing their Work culture.

With evolution and changing environment of business world, network security certification courses have become most preferable. For being highly skilled and having expertise network engineer adopt various defensive strategies to shield our network systems from viruses and hackers.

Before adopting these strategies its important to understand the three principle on which it works:
  • Protection : Being able to configure systems and networks as correctly as possible.
  • Detection : Being able to identify when configurations has changed or when some network traffic problem indicates.
  • Reaction : After identifying taking actions to return to the safe state as rapidly as possible.
For implementing this defensive strategies and protection of network system various techniques can be adopted and put into practice, developed by network engineers :

Anti–Malware :

Malware is a Software Bug, that has malicious intent against the user of computer. Viruses, trojan horses, worms, spyware, ransomeware, adware and scareware are the codes on which malware spread across and attacks the computer and electronic devices and infect machines for days and weeks.

Several capable anti virus softwares and other techniques have been developed by network engineers to stop such viruses and worms to make way into your devices.

Behavioural Analytics :

Knowing how a network behaviour looks like for spoting of network anomalies or breaches as they happen.

It gives an insight into who, what, when and how does the network work and reacts. It informs us only not on what is happening also about how is it happening.

Data loss prevention :

This is the most common practice prevalent in the corporate world. Data loss incidents turn into leaking of sensitive information of enterprises to the hands of unauthorised users.

There has been development of Data Loss Prevention Software which detects data breaches/data ex – filtration transmissions and prevent them by monitoring, detecting and blocking sensitive data while in use, in motion or at rest.

Email security :

Email has to go through potentially many untrustworthy intermediary computers before reaching its destination and it cannot be told if anyone opened and read it or not.

Phishing is one of the most common way attackers gain access to network. Email security tools developed by network engineers block both incoming attacks and outbound messages with sensitive data.

Firewalls :

It is a network security system that monitor and controls incoming and outgoing network traffic, based on performance, on predetermined security rules. 

Firewalls are often categorized as either network firewalls or host-based firewalls. Network firewalls filter traffic between two or more networks and run on network hardware

Host-based firewalls run on host computers and control network traffic in and out of those machines.

Network segmentation :

It makes network security enforcing easier. Network segmentation in computer networking is the act or practice of splitting a computer network into sub-networks, each being a network segment.

Advantages of such splitting are primarily for boosting performance and improving security. When a cyber-criminal gains unauthorized access to a network, segmentation or “zoning” can provide effective controls to limit further movement across the network.

VPN (Virtual Private Network):

It allows users to send and receive data across shared or public networks as if their computing devices were directly connected to a private network. 

Applications may therefore benefit from functionality, security and management of the private network.

VPN technology was developed as a way to allow remote users and branch offices to securely access corporate applications and other resources. 

To ensure safety, data travels through secure tunnels, and VPN users must use authentication methods -- including passwords, tokens or other unique identification procedures -- to gain access to the VPN server.

Network security is the future of world.

Industries are the major driver of growth and contribute towards GDP of economy. Evolution, growth and betterment of society leads to the elevation in need of better security of information and technology.

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