Information Technology

Network Security & its Types

Network security is the process of taking precautionary measures to protect the core network infrastructure from unauthorized access, abuse, disruption, updating, disruption or misrepresentation.


Network security is important for home networks and businesses. Most homes with high-speed Internet connections have one or more wireless routers that can be used if not used properly. A robust network security system helps reduce the risk of data loss, theft and destruction.


Network security protects your network and data from hackers, hackers, and other threats. Network Security, Access Control, Antivirus and Antivirus Software, Application Security, Network Scanning, Network Related Security Types (Endpoint, Web, Wireless), Firewall, VPN Encryption, etc. it is included.

Types of Network Security:


There are the different types of Network Security are that:

  1. Access Control
  2. Application Security
  3. Firewalls
  4. Virtual Private Networks(VPN)
  5. Behavioral Analytics
  6. Wireless Security
  7. Intrusion Prevention System

1. Access Control:

To prevent potential attacks, you should prevent unauthorized users and devices from accessing your network. Users authorized to access the network should only work with a set of authorized sources.

2. Application Security:

Application security includes hardware, software, and processes used to monitor and block vulnerabilities in applications used by attackers to access the network.

3. Firewalls:

A firewall is a gateway that determines what happens inside and outside the network. They use a set of rules to allow or block traffic. It can be a hardware or software firewall or both.

4. Virtual Private Networks(VPN):

A VPN usually encrypts the connection between the terminal and the network on the Internet. In this way, it provides a connection between the device and the protected network, creating a safe and encrypted “cave” on the open Internet.

5. Behavioral Analytics:

In order to be able to detect unusual objects or network breaches in the event of an accident, you need to know what the normal behavior of the network is. Behavior Analysis Tools automatically detect anomalous movements.

6. Wireless Security:

Wireless networks are not as secure as wired networks. Cybercriminals target mobile devices and apps. Therefore, it is necessary to control which devices can access the network.

7. Intrusion Prevention System:

These systems often analyze network traffic to identify and prevent attacks by combining network activity signatures from databases of known attack techniques.

Here are some ways that network security can be implemented. Also, you will need various software and hardware tools in your device kit to ensure network security.

    • Firewalls
    • Packet crafters
    • Web scanners
    • Packet sniffers
    • Intrusion detection system
    • Penetration testing software

Network security is important for general cybersecurity as the network is an important line of defense against any outside attack. Strong network security protects against data breaches as nearly all data and applications are connected to the network.

Network Security Jobs:

With the success of popular cyberattacks like WannaCry and Adylkuzz, companies are paying more than ever to hire highly trained cybersecurity experts to protect their most vulnerable assets. Network Security Analyst and Network Security Engineer are two of the highest paid cybersecurity services listed. A network security engineer can create security systems and is responsible for analyzing networks for potential network security analysts. Both jobs average between $ 90,000 and $ 150,000.

If you’re interested in learning more about cybersecurity and pursuing a career focused on cybersecurity, check out the tutorial-led hands-on training and cybersecurity audit training that comes with real-world project experience . This course will help you understand and learn more about cybersecurity.

Check out the just launched tutorial on CompTIA Security +, the first public partnership between Edureka and CompTIA Security +. This gives you the opportunity to earn an international certification focusing on cybersecurity and security features important to network administrators.

Learn cybersecurity the right way from Idureka’s cybersecurity experts and protect the world’s largest companies from hackers, hackers, and cyber attacks.

Devices Types of Network Security:

There are different Devices Types of Network Security are that:

  • Firewalls.
  • Hardware Firewalls.
  • Software Firewalls.
  • Antivirus.
  • Content Filtering Devices.
  • Intrusion Detection Systems.

Features of Network Security:

There are different Devices Features of Network Security are that:

  • Bitdefender — Best network security software for most.
  • Avast Cloud Care — Best for MSPs managing multiple networks.
  • Fire mon — Best for automated network security.
  • Watch guard — Best for real-time network visibility.
  • Qualys — Best for network vulnerability management.

Network Security Issues:

There are many benefits to using a network, but network security issues like do can greatly improve data loss, security bug, Malicious attacks like hacking and viruses.

Network Security Attack:

A network attack can be defined as any method, process, or method used to maliciously compromise network security. Network security is the process of preventing network attacks against a particular network infrastructure, but the methods and tactics used by the attacker are more likely to determine whether the attack is an active cyber attack, a passive attack, or both .

Active Attacks


An active attack is a network exploit in which an attacker attempts to change the path to one or more targets.

Find Alice and Bob. Alice wants to meet Bob, but it’s a matter of distance. As a result, Alice sends Bob an email over an unsecured network to prevent attacks. There is someone else on the same network as Tom, Alice and Bob. Now, as the data stream is public to everyone on this network, Tom will partially modify the authorization message to produce unauthorized results. For example, the message “Allow BOB to read hidden file X” was changed to “Allow Smith to read hidden file X”.

Active network attacks are often violent and dangerous attacks that victims notice. Active attacks are malicious in nature, often blocking users, destroying memory or files, or brutally gaining access to a target system or network.

Passive Attacks


A proactive attack is a network attack in which the system is monitored and sometimes scanned for open ports and vulnerabilities, but does not affect system resources.

Alice sends an email to Bob over an unsecured network. Being on the same network as Alice and Bob, Tom sees Alice and Bob. Suppose Alice sends Bob confidential information such as bank accounts. Tom can easily access the data and use it for malicious purposes.

Therefore, the attack aims to access a computer system or network and collect information anonymously.

Therefore network security involves the implementation of various hardware and software necessary to maintain the network infrastructure. With adequate network security, you can identify potential threats before they enter your network and put your data at risk.

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