摘要
计算机网络具有联结形式多样性、终端分布不均匀性和网络的开放性、互连性等特征,致使网络易受攻击,所以网上信息的安全和保密是一个重要问题。无论在局域网或广域网中,都存在自然和人为等因素的脆弱性和潜在威胁。计算机网络的安全措施应是能全方位地针对各种不同的威胁和脆弱性,这样才能确保网络信息的保密性、完整性和可用性。文中介绍了计算机网络面临的威胁,以及计算机网络安全的策略和措施,包括物理安全、访问控制、数据加密和网络安全管理等方面。
Computer network is vulnerable today because it is connected by a lot of ways, and the end terminals spread over the whole world. It is vulnerable also because of its characteristics of openness and interlinking. So how to protect the information in network is becoming more and more important. Whether in LAN or WAN, there are a lot of factors caused by human or nature which lead to fragibility and being threatened. The measures for security are to cope with all of fragibility and threats. With these measures, the information in network can be kept confidential, integral, and useful.
出处
《电子工程师》
2006年第9期60-63,共4页
Electronic Engineer
关键词
计算机网络
网络安全
安全策略
安全措施
computer network
network security
security policy
security measure
