The utility tcpdmatch is a good tool for initially testing access rules before putting them in place.
tcpdmatch 工具非常适于在设置访问规则之前对其进行初始测试。
Kites were used for military purpose initially, like measuring distances, testing wind directions, and communications.
最初分风筝常用作军事用途，如测量距离、测试风向和通讯。
My guess is, initially, people just wanted to make computer do what it is best for - repetitive work (in this case - testing) and have code test the application, not humans.
我想，刚开始人们也就只是希望发挥计算机的特点，让它完成重复性的工作(这里是指测试)，而不再需要人去进行测试。
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