Question

Why is it important to have a Network Security?

Discuss the use of network security components.

Why is it important to use Firewall for Computer Networks?

Answer 1

Why is it important to have a Network Security?

First of all we have to know about what is network security

Network security is the process of taking preventative measures to protect the underlying networking infrastructure from unauthorized access, misuse, malfunction, modification, destruction or improper disclosure. Implementing these measures allows computers, users and programs to perform their permitted critical functions within a secure environment.

Importance of having network security

Network security is important for every home networks,wide area networks,office networks as well as in the business world. Most homes with high-speed internet connections have one or more wireless routers, which could be damaged or getting malwared if not properly secured. A strong network security system helps reduce the risk of data loss, theft and sabotage.

Discuss the use of network security components.

There are 9 components in network security.They are

1. Firewall/unified threat manager
2. Firewall configuration, reporting and updates
3. VPN tool management
4. Wireless protection
5. Content filtering
6. Email & spam protection
7. Intrusion prevention
8. Mobile device management security
9. Security information and event management (SIEM)

1. Firewall/unified threat manager
   A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules.. A firewall is the bare minimum of network security and is required by most compliance regulations.
2. Firewall configuration, reporting and updates
   Firewalls require continual updates of the latest security patches. Without day-to-day management of your firewall, your employees and critical business assets are at risk from new threats. Hackers are always evolving, and that means your network security equipment should be updated at least daily to keep up with the latest security threats. Without regular updates, you may only be protected from yesterday’s threats
3. VPN Tool Management
   A virtual private network (VPN) tool manager provides a secure internet connection to your remote users and the devices they use outside of the physical network perimeter.
4. Wireless Protection
   Wireless network security is the process of designing, implementing and ensuring security on a wireless computer network. It is a subset of network security that adds protection for a wireless computer network.
5. Content Filtering
   Content filtering takes the protection of your firewall further by choosing specific subjects, titles, categories or words to restrict what types of material is accessible on your network.
6. Email & Spam Protection
   Spammers have become sophisticated and now use advanced phishing schemes to collect personal and confidential material from your employees. Using email and spam protection services in conjunction with your managed firewall will block harmful email and email attachments from ever reaching your employees.
7. Intrusion Prevention Service (IPS)
   A firewall combined with an Intrusion Prevention Service provides the most complete protection against malicious network access attempts. The IPS sits between your firewall and the rest of your network and can stop suspicious traffic from penetrating the rest of the network.
8. Mobile Device Management (MDM)
   If you’re like most businesses, your staff members access company email from their smartphones, tablets and personal computers. Mobile device management creates a more secure environment for these devices being used by your employees – no matter where they are.
9. Security Information and Event Management (SIEM)
   SIEM adds an additional security layer by providing real-time analysis of security alerts, and it logs security data and generates reports for compliance purposes. SIEMs can automate compliance reporting for PCI, HIPAA or any other regulatory agency. SIEMs require continual monitoring and optimization of tuning out false alarms, but a properly tuned SIEM will keep your organization safe and audit-ready.

Why is it important to use Firewall for Computer Networks?

Firewalls, as their name suggests, act as a barrier between the untrusted external networks and your trusted internal network. Administrators typically configure a set of defined rules that blocks or permits traffic onto the network. For example, Forcepoint's Next Generation Firewall (NGFW) offers seamless and centrally managed control of network traffic, whether it is physical, virtual or in the cloud.