思科设备，记录用户操作命令，记录用户登陆信息, 开通SYSLOG

#conf t

(config)#archive

(config-archive)#log config

(config-archive-log-cfg)#hidekeys

(config-archive-log-cfg)#logging size 100

(config-archive-log-cfg)logging enable

(config-archive-log-cfg)notify syslog

sh archive log config all

#conf t

(config)#ntp server hostname

#conf t

(config)#aaa new-model

(config)#username user1 privilege 15 password password1

(config)#login on-success log

(config)#login on-failure log

(config)#line vty 0 4

(config)#password 7 password2

(config)#service password-encryption (不可逆)

logging trap debugging
logging facility auth
logging *.*.*.*