Introduction介绍Thisdocument lists all the optionthat is recommended to help you secureyour CISCO IOS systemdevices,which increases the overall security ofyour network这篇文档包含了建议你使用的一些安全选项，旨在帮助你加强使用CISCO IOS系统的设备的安全性，从整体上整体加强网路安全。以下内容需要回复才能看到service sequence-numbers Eachsystem status messages logged inthe system logging process have asequence reference number applied.This command makes that numbervisible by displaying it with themessage. The sequence number isdisplayed as the first par
