kenel

Linux system kenel adopts the Netfilter mechanism ,which is a structural bottom frame for expanding various network service after 2.4 version.

Linux系统内核自2.4.版本之后采用了Netfilter机制，它是在内核中扩展各种网络结构化底层框架。

Workflow realization base on JAVA was given, including kenel interface, main classes and workflow engine.File flow, examine and approve flow function of the system were realized based on the workflow.

实现了协同网络税办公系统，给了使用JAVA语言工作流实现，包括工作流核心接、要实现以及工作流引擎实现，并在该工作流基础上，实现了该系统公文流转、审批流程设置等要办公业。