Question

什么是个人防火墙技术？

Answer 1

个人防火墙是防火墙类应用软件运行于用户电脑上。
Traditional software-based firewalls run as the only application on stand-alone computers which have been hardened to protect against hackers.传统的基于软件的防火墙来说，作为唯一应用独立式电脑已硬化，以防止黑客的攻击。 Personal firewalls run on PC's along with all of the other applications required by the PC user.个人防火墙上运行的PC的，随着所有的其他应用程序所需要的PC用户。
Traditional firewalls protect entire networks.传统的防火墙保护整个网络。 Personal firewalls are normally designed to protect only the PC upon which they are installed.个人防火墙通常是旨在保护只筹委会后，他们所安装的。
Because they run on the same computer as the other applications, personal firewalls have more information available to them than traditional network firewalls.因为他们同一台计算机上运行，作为其它用途，个人防火墙有更多资料提供给他们，比传统的网络防火墙。 The traditional network firewall knows whether the traffic is TCP , UDP , or ICMP .传统的网络防火墙知道是否应当针对该流量是TCP ， UDP的 ，或ICMP的 。 It knows what port number the traffic uses.它知道什么是端口号码交通用途。 It may know something about the protocol being utilized.它也许知道一些有关议定书正在使用。 It also knows the source and destination of the traffic.它也知道来源地和目的地的交通。 A personal firewall knows all of this, but also knows what software application is sending or receiving the traffic.个人防火墙知道这一切，而且还知道什么是应用软件是发送或接收了交通。
Most personal firewalls pop-up windows to notify the user about unknown network traffic.大多数个人防火墙弹出式窗口，以通知用户约未知网络流量。