Depending on the nature of the problem, it is sometimes good practice to run a tcpdump for a period of time while capturing packet information to a file using the -w switch.

根据问题的性质，有时候最好运行tcpdump一段时间，同时使用- w选项把数据包信息捕捉到文件中。

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Indeed, Facebook's organization of information and relationships became, in a remarkably short period of time, a redoubt from the Web -a simpler, more habit-forming place.

实际上，Facebook对信息和关系的组织，在一个显著的短期内，成了网页上的最后一块阵地——一个简单的，更容易上瘾的地方。

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Since the defragment operation may run quickly, especially for smaller tables, the defragment information may be available for only a short period of time.

由于碎片整理操作可能运行得很快，特别对于小表更是如此，所以只能在很短的时间内看到碎片整理信息。

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Encrypting email may be a reasonable step for an attorney working on a highly sensitive manner, especially in light of the fact that the very nature of digital technologies makes it easier for a third party to intercept a much greater amount of information in a much shorter period of time than would be required if the information were in hard copy.

FORBES: Your Ethical And Legal Duties When Using Wireless Networks

"Courts are willing to sit an employee on the sidelines for a period of time until the information they know becomes stale, " says Theodore Rogers Jr.

FORBES: Whose Rolodex is it, anyway?

For the government, a warrant isn't currently required after a certain period of time for older information -- e-mail, social networking profiles or cell-phone location data -- stored "in the cloud" on Web servers.

CNN: 5 big tech issues await Obama in second term