How AWS Firewall Protect Your Network?

While cyber attacking increasing every day, it has become vital to protect your network and computer. However, numerous tools can safeguard your resources while keeping your data safe. One considerable option is the Amazon Web Service (AWS) Firl, a managed service that adds a layer of protection preventing users from downloading unwanted malware botnets.

There are majorly two ways to add the firewall to your network, the first way is to add with a security appliance, and the other way is through a software-based farewell.

Here are the ways on how AWS firewall can protect your network.

Basic Understanding of AWS Firewall

The firewall concept was started to protect the communication process between all networks. An AWS firewall is a managed service, hardware, or software device that acts as a filtration system for the data attempting to enter on your Amazon Virtual Private Clouds (VPCs).

In addition, a firewall provides control over network traffic, such as blocking outbound Server Message Block (SMB) and preventing the spread of malicious activity. Generally, this process is controlled by predefined security guidelines.

A firewall needs to be sufficient enough to handle both internal and external threats. It needs to be capable of dealing with malicious software, including worms and rootkits, from getting the entrance of the network. Also, it stops the system from transferring any illegitimate data to another system.

It’s worth mentioning that firewalls offer protection not only from exterior threats but also from internal malfunctions. Hence, systems generally require protection at each level of networking.

Software-based firewall Vs. Security-based Firewall/Hardware Firewall

Software-based firewalls are the most popular options, growing rapidly due to their countless advantages. Besides, the cost is one of the considerable advantages as a software-based network appliance is less expensive than a hardware-based one.

Moreover, these appliances can easily be installed on each device connected to a network. Such appliances are broadly preferred by mobile users to safeguard their handset from malicious attacks digitally.

Hardware firewalls are considered the traditional enterprise approach that requires routing network traffic using a physical network security appliance. Such appliance safeguards the entire network from external threats only. A security-based firewall works well, but they are pretty expensive.

If privacy is your priority, AWS data protection services are the ideal option to opt for. It includes an advanced set of access, encryption, logging features, and threat detection services that continuously supervise the account behavior within the cloud environment.

How AWS Firewall Safeguards your Network?

AWS firewall network is ideal for protecting your infrastructure and application. It offers exceptional features and functions than a traditional WAF. Additionally, it safeguards from web traffic and offers deep packet inspections, domain filtering, and intrusion prevention.

AWS network firewall is incorporated with many AWS and third-party services. Whether you require protection against Distribution Denial of Service (DDoS) or simply looking to determine brute-force attacks against the system, the movable nature of access control policies and policy groups makes sharing across organizations or AWS accounts easy. Therefore, you can create them once and use them throughout. AWS firewall holds three deployment models to suit your company’s requirements.

  1. Distributed AWS Network Firewall deployment model – Such network is deployed into each individual VPC.
  2. Centralized AWS Network Firewall deployment model – This network is deployed into focused VPC for East-West (VPC-to-VPC) and North-South (internet egress and ingress, on-premises) traffic.
  3. Combined AWS Network Firewall deployment model – Such network is deployed into centralized inspection VPC for East-West (VPC-to-VPC) and a subset of North-South (On-Premises/Egress) traffic. Internet entrance is circulated to VPCs, which demands dedicated inbound access of the internet, and AWS Network Firewall is deployed accordingly.

 Important of AWS Network Firewall

1.      Strains Internet Traffic

AWS firewall hinders the intrusion by monitoring all the internal traffic through Access Control Lists (ACL) rules, stateful inspection, protocol detection, and intrusion prevention.

2.      Filter Outbound Traffic

AWS firewall offers URL/domain name, IP address, or content-based external traffic filtering to control the data loss ensures compliance requirements, and block unknown malware communications. It also filters bad IP addresses or unknown bad domain names.

3.      Ensures AWS Direct Connect and VPN Traffic

AWS Network Firewall protects AWS Direct Connect and VPN traffic from the different devices and supports the domestic environment through AWS transit gateway. Additionally, it helps limit the traffic to ensure the right access is only given to VPN resources.

4.      Monitors VPC to VPC Traffic

AWS firewall monitors and control VPC to VPC traffic to rationally split the networks hosting sensitive applications or business-related workloads. With the active visibility at the network and applications, AWS firewall offers consistent network security controls for interrelated VPCs through AWS Transit Gateway.

Wrap Up

AWS Firewall concept has been introduced to protect the internal and external network attacks. There are two types of firewalls, hardware and software, and each format performs different functions. Besides, a hardware firewall is physical and can be stored between the network and gateway. In contrast, a software firewall is internal and installed through applications.

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