防火墙是目前使用很广泛的一种网络安全防护技术,是网络安全中非常重要的一个环节,本公司使用的是NXG150的硬件防火墙。防火墙一般是安装在网络的边界上,所有的进出流量都集中在这点上,可以实时监视、控制和修改内部和外部之间的网络通信,达到预防局域网内保密信息外泄和阻止外部恶意代码攻击的目的。防火墙的管理与应用的优劣直接影响到公司的整个网络安全。 Firewall is a very widely used network security technology, is a very important part of network security, the company is using the hardware firewall NXG150. Firewall is generally installed on the network border, all of the incoming and outgoing traffic are concentrated on this point, you can real-time monitoring, control and modify the network communication between the internal and external, to prevent leakage of confidential information within the LAN and prevent external malicious code The purpose of the attack. Firewall management and application of a direct impact on the company’s entire network security.