How to choose a firewall? Firewall selection comparison and recommendation

in the digital office and daily Internet scenarios, cyber security threats such as virus intrusion, data leakage, malicious attacks and other risks continue to rise, firewall as the core protection barrier of cyber security, its selection is directly related to the security level of the network environment. Many users in the face of a wide range of firewall products, often fall into the dilemma of not knowing how to match their own needs. This article will dismantle the key logic of firewall selection from multiple dimensions such as demand positioning, core parameter comparison, and mainstream product analysis, providing practical comparison and recommended reference.

, first clarify the firewall core requirements of the scene?

different usage scenarios, the function and performance requirements of the firewall are significantly different. Anchoring your own scenario requirements is the first step in selection.

1, small business and office

the number of users in such scenarios is usually less than 50 people, network traffic to daily office, mail transmission, file sharing, firewall without excessive performance parameters, but to have the basic virus killing, port filtering, VPN remote access function, while taking into account the convenience of deployment and cost control, preferred high degree of integration of entry-level firewall products.

2, medium and large enterprises and IDC scenarios

large and medium-sized enterprise network nodes, large traffic, and involving core business data transmission, firewalls need to have high throughput, high concurrent connection performance, while supporting advanced functions such as deep packet detection, intrusion prevention, application identification and control, some scenarios also need to be matched with multi-link load balancing, log audit module to ensure the stable operation of core business and data security.

3, personal home network scenarios

personal family scenes on the firewall operation convenience requirements are higher, without complex configuration, the focus needs to cover WiFi anti-rubbing network, malicious website interception, children's Internet control and other functions, some intelligent routers with firewall function can meet the needs, no need to purchase professional firewall equipment separately.

2, compare the core selection parameters of the firewall?

determine the requirements of the scene, it is necessary to focus on the core parameters of the firewall, which directly determine the protection ability and adaptability of the product.

1, throughput and concurrent connections

throughput refers to the size of the network traffic that the firewall can handle per second, in Gbps, which is the core indicator to measure the performance of the firewall. Medium and large enterprises need to choose products with a throughput of more than 10Gbps, and small enterprises and personal scenarios can choose 1-5Gbps. The number of concurrent connections refers to the number of network connections that the firewall can handle at the same time. The higher the value, the stronger the ability to deal with multiple users surfing the Internet at the same time.

2, core protection function module

basic firewall needs to have packet filtering, network address conversion function, advanced products need to integrate intrusion prevention system, virus protection, application control, URL filtering module, some high-end firewall also supports threat intelligence linkage, sandbox detection function, can identify and intercept new unknown threats in advance, users need to select the corresponding function module according to the scene requirements of the product.

3. Comparison of firewall products of mainstream brands?

the current market firewall brands can be divided into international first-line, domestic mainstream and entry-level three camps, the positioning and advantages of the brand products are significantly different.

1, international first-line brand firewall

represented by Palo Alto, Cisco, Juniper, this kind of firewall technology accumulation deep, comprehensive and stable performance, support global threat intelligence synchronization, suitable for the security level requirements of the financial, operators and other industries, but the product price is high, configuration complexity is relatively high, the operation and maintenance personnel technical ability requirements are strong.

2, domestic mainstream brand firewall

domestic brands such as Huawei, deep conviction, Qi Anxin, its firewall products are more in line with the domestic network environment and policy requirements, support localized threat intelligence database, and provide more convenient Chinese operation interface and after-sales operation and maintenance services.

3, entry-level and home firewall

such products are represented by TP-LINK, ASUS's intelligent router integrated firewall, and Feita's entry-level hardware firewall, which is inexpensive and easy to operate, and can meet the basic protection needs of small businesses and personal families.

To sum up, the firewall selection needs to be based on the needs of the scene as the core, first clarify its own network scale and protection goals, then compare the core parameters such as throughput and functional modules, and finally select the corresponding brand products in combination with the budget. Whether it is a small business, medium and large enterprises or individual users, they can find a firewall that suits their own needs and build a security barrier for the network environment.