在网络安全建设中使用最频繁的产品自然是防火墙。防火墙厂商在过去的几年里也骤然增加了几倍,但是防火墙产品的开发难度非常大,其对技术的要求比一般的软件产品要高得多,不仅需要研发人员了解各种网络底层协议,而且还需要了解各种常用网络应用软件的实现机制,需要考虑到各种复杂网络环境下的系统配置,没有多年的技术积累是很难做到的。所以新冒出来的防火墙产品能否保证性能就很难说了。 In the construction of network security is the most frequently used product firewall. Firewall vendors have suddenly increased in the past few years several times, but the development of firewall products is very difficult, the technical requirements of the software products is much higher than the average, not only need to understand the various developers of the underlying network protocols, But also need to understand the realization mechanism of various commonly used network application software, and it needs to take into account the system configuration under various complicated network environments. Without many years of technical accumulation, it is difficult to achieve. Therefore, the new firewall products can guarantee the performance is hard to say.