What to Look for in a Next-Generation Firewall

Today, a new generation of users, applications, and security threats pose threats to corporate wireless networks. Traditional firewalls are not powerful enough to provide comprehensive visibility and control over applications. Next-generation firewalls ensure that you are ready to integrate mobile users and cloud computing.

The next-generation firewall enables organizations to achieve network visibility, reduce vulnerabilities, and maintain network performance. Unlike traditional port-based methods, next-generation firewalls block threats and prevent data loss by providing policy-based visibility and control of applications, users, and threats. Next-generation firewalls provide application control and optimal protection against threats.

The following is a detailed introduction to the three advantages of the next-generation firewall for your company’s wireless network.

What is the next-generation firewall?

The next-generation firewall is a network security device that can provide functions beyond traditional stateful firewalls. Traditional firewalls usually allow full inspection of inbound and outbound network traffic, while next-generation firewalls provide additional features such as application detection and control, integrated intrusion prevention, and threat intelligence in the cloud.

What is a UTM firewall?

Unified Management Gateway or Unified Threat Management is a turnkey solution for small businesses. It is as comprehensive as other firewalls and is often referred to as a comprehensive solution. A firewall has appeared on the market. These additional applications are helpful, but difficult to manage. UT firewall integrates all these functions into one management interface.

Despite their complexity, they are still turnkey solutions, which means they cannot be easily customized to meet individual business needs. Although it is not useful for large enterprises, it is an ideal choice for many small businesses.

First, a few words about a basic firewall:

In its simplest form (I will explain all the terms later), a next-generation firewall is a stateful device that can apply network-layer access control to packets passing through it. Perform network address translation (NAT). One of the most important but most overlooked features of a basic firewall is that it should contain a lot of logging.

Stateful in this context means that the firewall maintains a table of all active sessions passing through it. When I was allowed an outbound connection to a website on the Internet, the state table knew to allow inbound packets from it, but after my session ended and the firewall no longer waited for these inbound packets, it should block them. Network layer access control is a simple rule that allows or denies traffic based on the information in the header. This information can include port numbers, IP addresses,or protocols.

IDS and IPS and other application-level security features:

NGFW adds application-level security features, such as intrusion detection systems (also known as IDS) and intrusion prevention systems (also known as IPS).

These applications help improve packet content filtering. These functions can also detect, analyze, and respond to irregular deviations from intelligent attacks, standard actions and threat characteristics based on user behavior.

Traditional Firewall and Next-Generation Firewall:

As the name implies, the next-generation firewall is a more advanced version of the traditional firewall and has the same advantages. Ensure that all connections between the network, the Internet, and the firewall are valid and secure. These two types of firewalls must also be able to translate network and port addresses in order to assign IP addresses.

There are also fundamental differences between traditional firewalls and next generation firewall. The most obvious difference between the two is the NGFW’s ability to filter packets based on applications. These firewalls have extensive application control and visibility, and you can identify them through signature matching and analysis.

Packet filtering and deep packet inspection (DPI):

Packet filtering is a feature in traditional firewalls to determine whether traffic is safe or whether network access should be blocked. The firewall uses them to determine whether the packet should be forwarded to a destination on the network, or whether it should be disconnected.

In the next-generation firewall, DPI has improved packet filtering to handle complex malware. Using traditional packet filtering, the packet header is simply read. Sangfor DPI inserts the content of the package and compares the detailed information of the content with the attack signature database. The signature is in byte mode. Only applies to malware. The difference is like the postman checking the address on the letter and the TSA agent checking everyone’s luggage.

The depth and full visibility beyond the application:

Pure traffic analysis is not enough. In order to detect many of today’s most serious threats, the information generated by such inspections must be broadcast to the rest of the network in real-time. The current NGFW solution operates in isolation. Many different security tools that are not even loaded on the same platform share information, let alone other security tools implemented on a distributed network.

However, protecting today’s networks requires cross-platform integration and direct correlation of threat intelligence, and this capability must be extended in today’s highly distributed networks, including physical and virtual domains, the Internet of Things, and other endpoints, and sangfor multi-cloud environments. It can contain multiple IaaS.

Next generation firewall ensures resource efficiency:

However, the cost savings are not limited to these direct costs. Like many government agencies, the organization’s technical team is chronically understaffed and lacks the expertise required to properly operate and monitor existing security technologies. The integration of security solutions enables the agency to integrate management responsibilities and significantly improve employee efficiency.

Professionals can better understand bandwidth usage in your environment. Three months after the product was launched, my client was very satisfied with the initial results. The management capabilities and the solution’s centralized monitoring are worth the investment in themselves, but institutional CIOs can also get answers to other security requirements without having to buy additional products. …

Content Filtering Service:

Sangfor Content Filtering Service (CFS) is a policy enforcement solution and a powerful Web filtering that protects employees from accessing malicious or inappropriate Web content. Regardless of the device used to access the Internet, CFS compares each website that employees visit with a huge database of IP addresses and URLs to dynamically allow, deny, or restrict access based on security settings and company policies.