====================命令行基础=====================

设置时钟:
clock timezone BJ add 08:00:00
clock datetime 17:36 2016-10-22
display clock
2016-10-22 17:36:20
Saturday
Time Zone(8) : UTC+08:00
clock timezone BJ add 08:00:00
display clock                 
2016-10-22 17:37:04
Saturday
Time Zone(BJ) : UTC+08:00

配置标题消息:
header login        配置在用户登录前显示的标题消息
header shell        配置在用户登录后显示的标题消息

[AR1]header login information "welcome to huawei certification!"
[AR1]header shell information "Please don't reboot the device!"

简单设置console密码:
[AR1]user-interface console 0
[AR1-ui-console0]authentication-mode password
Please configure the login password (maximum length 16):huawei

[R1]user-interface console 0
[R1-ui-console0]authentication-mode password
[R1-ui-console0]set authentication password cipher huawei
[R1-ui-console0]idle-timeout 20 0


命令级别:
用户级别    命令等级        名称
0            0          访问级别(ping tracert)
1         0 and 1         监控级(display)
2         0,1 and 2        配置级
3-5        0,1,2 and 3      管理级

system-view
[AR1]command-privilege level 3 view user save   
The command level is modified successfully
 
创建一个hw123用户命令级别为0:
[AR1]aaa
[AR1-aaa]local-user hw123 privilege level 0 password cipher hw123
[AR1-aaa]local-user hw123 service-type telnet
[AR1-aaa]q
[AR1]in lo0
[AR1-LoopBack0]ip add 55.1.1.1 32
[AR1-LoopBack0]q

[AR1]user-interface vty 0 4
[AR1-ui-vty0-4]authentication-mode aaa
[AR1-ui-vty0-4]q

创建一个hw345用户命令级别为2:
[AR1]aaa  
[AR1-aaa]local-user hw345 privilege level 2 password cipher hw345

用户界面:
用户界面类型      编号
console        0
VTY          0-4

[AR1]user-interface vty 0 4
[AR1-ui-vty0-4]

VTY接口最大可配范围为0-14。

用户界面命令:
命令                        功能
idle-timeouut            设置超时时间
screen-length            设置指定终端屏幕的临时显示行数
history-command max-size       设置历史命令缓冲区的大小

system-view
[AR1]user-interface console 0
[AR1-ui-console0]history-command max-size 20
[AR1-ui-console0]idle-timeout 1 30

display history-command   //查看命令历史
display saved-configuration    //查看保存的配置信息

配置登录权限:
命令                            功能
user privilege        配置指定用户界面下的用户级别
set authentication password    配置本地认证密码

sy
[AR1]user-interface vty 0 4
[AR1-ui-vty0-4]authentication-mode password
Please configure the login password (maximum length 16):16
[AR1-ui-vty0-4]set authentication password cipher 123
[AR1-ui-vty0-4]user privilege level 0
[AR1-ui-vty0-4]q