51154724-100 防火墙 保护内部网免受非法用户的侵入

51154724-100防火墙指的是一个由软件和硬件设备组合而成、在内部网和外部网之间、专用网与公共网之间的界面上构造的保护屏障.是一种获取安全性方法的形象说法，它是一种计算机硬件和软件的结合，使Internet与Intranet之间建立起一个安全网关（Security Gateway），从而保护内部网免受非法用户的侵入，防火墙主要由服务访问规则、验证工具、包过滤和应用网关4个部分组成，防火墙就是一个位于计算机和它所连接的网络之间的软件或硬件。该计算机流入流出的所有网络通信和数据包均要经过此防火墙。
防火墙的功能主要在于及时发现并处理计算机网络运行时可能存在的安全风险、数据传输等问题，其中处理措施包括隔离与保护，同时可对计算机网络安全当中的各项操作实施记录与检测，以确保计算机网络运行的安全性，保障用户资料与信息的完整性，为用户提供更好、更安全的计算机网络使用体验。
总的来说，防火墙是在两个网络通讯时执行的一种访问控制尺度，是网络安全策略的有机组成部分，只有通过防火墙的安全策略审核，内外部网络之间的通讯资源请求才能被允许通过。

51154724-100

51154724-100 Firewall refers to a combination of software and hardware devices, constructed at the interface between the internal network and the external network, between the private network and the public network. It is a combination of computer hardware and software that establishes a Security Gateway between the Internet and the Intranet, thereby protecting the Intranet from intrusion by illegal users. Firewall consists of service access rules, authentication tools, packet filtering and application gateway. Firewall is a software or hardware located between a computer and the network it is connected to. All network traffic and packets flowing in and out of the computer pass through this firewall.
The function of the firewall is to discover and deal with the security risks and data transmission problems that may exist during the operation of the computer network in a timely manner. The processing measures include isolation and protection. At the same time, the firewall can record and detect the operations of the computer network security to ensure the security of the computer network operation and ensure the integrity of user data and information. To provide users with a better and more secure computer network experience.
In general, the firewall is an access control scale executed when two networks communicate, and is an integral part of the network security policy. Only through the security policy audit of the firewall, the communication resource request between the internal and external networks can be allowed to pass.

其他型号推荐：