故障转移也可以用于维护网络应用程序的连通性。
Failover can also be used to maintain network application connectivity.
通常，应用程序可以通过多个连接端口用事件处理程序创建事件侦听程序，但是这在网络资源和维护方面花费较大。
Generally, an application can create event listeners with event handlers through multiple connection ports, but this is costly in terms of network resources and maintenance.
对于维护一个应用程序或系统，网络黑客所涉及的人：下一代是为数不多的书籍之一，以识别各种新兴的攻击媒介。
For anyone involved in defending an application or a network of systems, Hacking: the Next Generation is one of the few books to identify a variety of emerging attack vectors.
本书适用于希望理解TCP/TP协议如何实现的人，包括编写网络应用程序的程序员以及利用TCP/IP维护计算机网络的系统管理员。
This book is hope that the understanding of TCP/TP protocol how people, including programmers who write Web applications and the use of TCP/IP to maintain the computer network system administrator.
本书适用于希望理解TCP/TP协议如何实现的人，包括编写网络应用程序的程序员以及利用TCP/IP维护计算机网络的系统管理员。
This book is hope that the understanding of TCP/TP protocol how people, including programmers who write Web applications and the use of TCP/IP to maintain the computer network system administrator.
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