Classification introduction of the four major purchase elements of hardware firewall
With the popularization and rapid development of Internet applications, network security has become an aspect that people are ultimately worried about. Viruses and hacker attacks, as the main hidden dangers of network security, threaten the security of computer systems for Internet applications all the time. As the main means to prevent hackers from invading, network firewall has also become a necessary equipment for network security construction. Not only the network needs of enterprises and institutions, but even personal user firewalls have become an indispensable security method. Still using software-based personal firewall products. This article will introduce the items to pay attention to when purchasing hardware firewall equipment. Of course, adapting to users is mainly enterprises and institutions.
At present, there are many brands of network firewall equipment on the market, and various grades of products are dazzling, so that ordinary users have no way to start when buying. So how to choose the firewall products that meet the needs of your company and achieve the maximum security effect?
The brand is the key firewall product. It is a high-tech product. The production of such equipment requires not only strong financial backing, but also a strong guarantee in terms of technical strength. If you choose a good brand, you will choose good technology and services to a certain extent, which will be more secure for future use. So when buying firewall products, don't try to be cheap at the moment, and buy some unprotected products. Xiaotong's agent, Nokia, and the market-leading CheckPoint company developed VPN-1 / FireWall-1 dedicated hardware firewall on a dedicated high-performance platform. This is one of the industry's most powerful firewall and VPN solutions. At the same time, Xiaotong Network, as an agent of many internationally well-known network security products, has accumulated quite a wealth of experience, which will play a positive role in bypassing the use of Nokia firewall products of Xiaotong agents.
The most important security is the firewall itself is a device for security protection, of course, its own security is even more important. The security performance of the firewall depends on whether the firewall uses a secure operating system and whether it uses a dedicated hardware platform. Because now the second-generation firewall products usually no longer rely on the user's operating system, but use their own separately developed operating system. The operating system itself requires no security risks. Of course, as an ordinary user, this can only be guaranteed by the brand. The security performance of the application system is based on the security performance of the firewall's own operating system. At the same time, the security implementation of the application system itself also directly affects the security of the entire system.
In addition, in terms of security policies, firewalls should have considerable flexibility. First of all, the filtering language of the firewall should be flexible, the programming is user-friendly, and it should have several possible filtering attributes, such as source and destination IP addresses, protocol types, source and destination TCP / UDP ports, and in and out interfaces. Only in this way can users adopt flexible security strategies to protect the security of their corporate networks according to actual needs.
In addition, the firewall should not only include advanced authentication measures, but also adopt as many advanced technologies as possible, such as packet filtering technology, encryption technology, and trusted information technology. Technologies such as identity identification and verification, information confidentiality protection, information integrity verification, system access control mechanisms, and authorization management are all necessary for firewall security systems.
The Nokia firewall that Xiaotong agent uses a dedicated IPSO security operating system and a specially developed hardware platform to ensure the high security of the system platform itself. On this platform, Nokia has integrated security products such as CheckPoint, SecoSheild, WebSense, etc., which can achieve comprehensive security. These products can provide users with security assurance, and at the same time provide strategies that are flexible and changeable.
High-efficiency performance and high-reliability firewalls filter incoming data to identify compliance with security policies, so when the traffic is relatively high, the firewall is required to detect all data packets in a timely manner as fast as possible, otherwise It caused a comparative delay and even crashed. This indicator is very important, it reflects the usable performance of the firewall, and also reflects the cost (latency) of using firewall products for enterprise users, and users cannot accept the excessive cost. If the firewall causes a large delay to the network, it will also cause a large loss to the user. We may feel this when using a personal firewall. Sometimes when we turn on the firewall, the Internet response is very slow, and once the speed is removed, it comes up because the firewall filtering speed is not fast enough.
If the firewall has too much influence on the original network bandwidth, it is undoubtedly a huge waste of the original investment.
At present, the firewall basically realizes the conversion from software to hardware in terms of type, and the algorithm has also been greatly optimized. A part of the performance of the firewall can completely reduce the performance of the original network. Specifically for users, to distinguish the performance of a firewall, you can mainly look at the performance test results of authoritative evaluation agencies or media. These results are measured by the international standard RFC2544 standard, including: network throughput Packet loss rate, delay, number of connections, etc., of which throughput is the top priority. Nokia IP1260 firewall can provide up to 4.2Gbps performance, fully meet the needs of large enterprises or carrier-class operators. At the same time, Nokia firewall also supports cluster technology, multiple Nokia firewalls can achieve dynamic load balancing, which can not only meet the application of large-scale networks, but also fully protect users' investment.
Of course, in terms of performance, there are different requirements for enterprises of different sizes. The higher the speed, the better. For example, some small LANs have an exit rate of less than 1M / s. A 100M / s firewall is unnecessary.
For large and medium-sized enterprises, the diversity of firewall functions should be highly valued. Otherwise, it is very likely that the purchased firewall products cannot meet the current or short-term future needs.
A good quality firewall can effectively control communications and can provide different control strategies for users of different levels and different needs. The effectiveness, diversity, clarity of level objectives, and ease of making control strategies all directly reflect the quality of firewall control strategies. Most firewall products now support the NAT function, which can prevent the IP address of the party protected by the firewall from being exposed. But note that enabling NAT will inevitably affect the performance of the firewall system.
At present, the firewall technology is progressing rapidly, the functions are also varied, and the user is more difficult to choose. In terms of packet filtering methods, at present, various manufacturers basically use packet filtering based on status detection. Other additional functions may depend on actual needs. For example, for units that do not have a fixed host, identity authentication functions may be required; for units with tight network resources, bandwidth management functions may be required to reasonably control resource allocation; For enterprises with headquarters and branch offices, you may need to choose firewall products that can support VPN communication functions and so on.
For enterprises that often have mobile users within the company, it is best to provide VPN communication or authentication functions. This has two benefits: First, it can save a lot of communication costs (because VPN only requires users to connect with the local ISP) On the other hand, users can log in to the company's internal server when they are on a business trip. When there is no other encryption method or the encryption cost is relatively high, this authentication method is more practical. As a leading product in the industry, Nokia Firewall comprehensively provides products including firewall, VPN, intrusion detection, flow control, anti-virus gateway and other functions.
Because the firewall is like a door for unit users to enter and exit the Internet, if the door is broken, it is obviously a problem to enter and exit the Internet. This may cause huge losses to users, which requires high reliability of firewall products themselves. Improving the reliability of the firewall is usually a measure taken in the design. The specific measures are to improve the robustness of the components, increase the design threshold, and add redundant components. The Nokia firewall of Xiaotong proxy supports the virtual router redundancy protocol (VRRP, RFC2338), which can achieve redundancy and load balancing between two or more Nokia firewalls.
For high reliability environments, Nokia's IP cluster technology can cluster multiple devices together and operate as a single virtual gateway to achieve dynamic load balancing. All members of the same cluster share security status information, and in the event of a failure, they can be automatically converted to redundant devices. At the same time, in order to optimize performance, the cluster will constantly rebalance the load. In this way, the user's network will not cause economic losses due to firewall failure. Nokia hardware redundancy includes support for hot-swappable interface cards, redundant power supply systems, fan systems, and mirrored hot-swappable hard disk systems.
From IP40 secure access solutions suitable for small and medium-sized enterprises or large enterprise branches, to IP350 / 380 solutions suitable for comprehensive and secure access for large and medium-sized enterprises, Xiaotong Network will tailor network security solutions for users according to different requirements of users Solutions, these security solutions developed according to different needs will provide users with a high degree of reliability, easy management, and can continue to upgrade according to the needs of comprehensive security.
For Led Lighting System,Specifically for led downlight,outside Constant Current Led Driver, Plastic casing, AC100-277V input, 27-40/42V output,with the dimming function of triac-dimming/0-10V/PWM/RX. Flicker free and SELV Safety output design, UL/FCC/TUV/RCM/CB/CE Certified.
Parameter:
Input voltage:100-130V/100-277V/100-240V/180-240V
Output voltage:25-40V/27-42V
Current:250mA, 300mA, 350mA
Power factor: >0.9
Dimming:0-10V / PWM / RX / Traic
>=50000hours, 3-5 years warranty.
FAQ:
Question 1:Are you a factory or a trading company?
Answer: We are a factory.
Question 2: Payment term?
Answer: 30% TT deposit + 70% TT before shipment,50% TT deposit + 50% LC balance, Flexible payment
can be negotiated.
Question 3: What's the main business of Fahold?
Answer: Fahold focused on LED controllers and dimmers from 2010. We have 28 engineers who dedicated themselves to researching and developing LED controlling and dimming system.
Question 4: What Fahold will do if we have problems after receiving your products?
Answer: Our products have been strictly inspected before shipping. Once you receive the products you are not satisfied, please feel free to contact us in time, we will do our best to solve any of your problems with our good after-sale service.
Led Downlights Driver,350Ma Led Driver,Led Lighting System
ShenZhen Fahold Electronic Limited , https://www.fahold.com