基于防火墙的网络安全技术的实现

Implementation of network security technology based on firewall

文中针对日益开放、高效的互联网信息系统,企业的大量机密信息通过局域网络传递随时有可能被窃听和拦截,且还有可能被黑客攻击或入侵的问题,提出了基于防火墙的网络安全技术。该方法在现有高效的互联网体系下,通过将防火墙技术运用在局域网和Internet网络之间,起到在内部网络与外网络过滤信息的作用。从而达到在保护内部资源的同时,保证内部工作人员能够安全的使用外部资源。此外,也能保证外部用户在未经授权的情况下,无法进入内部网络获取信息。最终,确保了互联网信息系统高效且更加安全。经过在局域信息系统中进行测试,通过对比启用防火墙与未启用防火墙的非法入侵外部信息状态发现,加入防护墙技术后外部非法入侵者均能够被有效拦截,保证了机密信息的安全性。

Aiming at the increasingly open,efficient Internet information system,a lot of confidential business information through the local area network transmission at any time are likely to be eavesdropping and interception,and at any time may have hacker attacks and intrusion problems,put forward the network security based on firewall technology.The method in the existing efficient Internet system,through the firewall technology used in between the LAN and the Internet network to the internal network and external network in information filtering function,so as to achieve the protection of internal resources,the use of external resources to internal staff safety,but also can ensure the external users without authorized at the same time,can not enter the internal network to obtain information,and ultimately ensure the efficient Internet information system more secure.After testing in the local information system,by comparing the external information status of the illegal intrusion and firewall and firewall,it is found that the illegal invaders can effectively intercept the protection wall and ensure the security of the confidential information.