What is Network Security? and Types of Network Security by Anshul 2023

What is Network Security?  and Types of Network Security by Anshul 2023

Network Security

Network security is the protection provided to a network from unauthorized access and threats. It is the duty of network administrators to take preventive measures to protect their networks from potential security threats. Computer networks that are involved in routine transactions and communications within government, individuals or business need security. The most common and simple way to protect a network resource is to assign it a unique name and associated password.

Definition of network security

Network security is security designed to protect the integrity of a network from unauthorized access and threats. Network administrators are responsible for adopting various defensive measures to protect their networks from potential security threats. Computer networks are involved in daily transactions and communications within government, private or corporates that require security. The most common and straightforward strategy for protecting network support is to specify it with a unique name and associated password. Network security includes:

Security: The user needs to be able to accurately configure their device and network.

Detection: The user needs to detect whether a configuration has changed or receive a notification if there is a problem with network traffic.

Feedback: After detecting problems, the user should react to them and return to a safe state as soon as possible.

Types of Network Security

Below are some of the different methods that are commonly used in our daily life to secure computer networks:

1. Active Equipment

Active security gadgets deal with surplus traffic. For example, firewalls, antivirus scanning tools, and content filtering tools are the most commonly used proactive tools.

2. Passive Equipment

Passive devices are used to identify and block unwanted traffic, such as intrusion detection devices.

3. Preventive Equipment

Preventive tools are used to scan the network and detect potential security threats. Penetration testing tools and vulnerability assessment tools are common examples of preventive tools.

4. Unified Threat Management (UTM)

UTM devices act as all-in-one security devices. Firewalls, content filtering, web caching are common examples of integrated threat management.

5. NAC or Network Access Control

NAC is a technology for implementing computer security networks at the most basic level. For example, a user can allow administrators full access to the network but deny access to particular confidential files or restrict their system from connecting to any network. It is a method that attempts to integrate endpoint security technology that supports network security enforcement.

6. Antivirus and Antimalware Software

Antivirus software systems are designed to protect against many types of malware and malicious software, including viruses, worms, ransomware, and Trojans. The best software scans for malware, quarantines it, and stops it before it can do any harm to the system.

7. Firewall Protection

Firewall acts as a defense barrier between your trusted internal network and untrusted external network from attacks such as viruses, worms, trojans, brute force attacks. Unlike a router, a firewall can be of any form, i.e. software or hardware. Although both methods perform similar functions, it scans incoming network traffic to ensure that it does not contain blacklisted data.

8. Virtual Private Network

VPN helps the user to create a secure and reliable private connection between the network used by his computer or device and any other network on the Internet. It handles the encryption process and uses other technologies to keep all your internet activities safe from attackers or cyber criminals who can infiltrate whenever your device is connected to any public Wi-Fi. For example, users working from home usually connect to the company's network through a VPN.

9. Content Filtering

Content filtering tools are used to filter out objectionable and bad emails or web pages. This technology is implemented as a part of firewalls as well as in computers in companies. Content filtering devices generate denial pop-up messages displaying "Access Denied" if an unauthorized user tries to access an official web page or email.

10. Intrusion Detection Systems

Intrusion detection systems or intrusion detection or prevention systems are devices or applications that actively monitor a network for malicious activities, logging information about those activities if the system detects an attack. Is. Alerts the company and takes steps to stop them.