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初级工程师
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本帖最后由 shanpj 于 2019-12-16 23:24 编辑
菜鸟笔记
关于设备远程管理,通用两种方式
1 telnet (明文传输不安全)
2 SSH (密文传输安全)
本次实验使用两台华为路由器,使用其中一台设备,通过SSH 访问另外一台设备
实验目的,熟悉SSH 的配置方式。
实验步骤 通过路由器R2 ssh 方式访问R1
一,两台设备直连,通过配置接口IP, ping测试连通性,完成即可(省略)
二 RI 配置的步骤为
1 修改默认设备名 2 设置本地用户名和密码
3 设置域名
4 手动产生rsa的key 回车后需要键入key长度,推荐768以上。
5 ip ssh verion 2 // 常用版本为2
6 login local
7 transport input ssh
进入AAA 模式下,设置用户名密码 、 设置 服务类型、设置该用户权限级别。
命令如下
local-user ccna password cipher hcna
local-user ccna privilege level 3
local-user ccna service-type ssh
开启系统视图下开启ssh 服务
[AR1]stelnet server enable
user-interface vty 0 4 // 进入vty通道 ,认证模式设置为AAA 并允许ssh 登陆。
authentication-mode aaa
protocol inbound ssh
系统视图下,创建RSA 的key
rsa local-key-pair crea // 在设备上创建rsa的key,用于SSH使用。
[AR1]rsa local-key-pair create
The key name will be: Host
% RSA keys defined for Host already exist.
Confirm to replace them? (y/n)[n]:y
The range of public key size is (512 ~ 2048).
NOTES: If the key modulus is greater than 512,
It will take a few minutes.
Input the bits in the modulus[default = 512]:512
Generating keys...
.++++++++++++
.............++++++++++++
...................++++++++
测试在设备上进行效果测试:如下
[AR2]stelnet 192.168.1.2
Please input the username:ccna
Trying 192.168.1.2 ...
Press CTRL+K to abort
Connected to 192.168.1.2 ...
Error: Failed to verify the server's public key.
Please run the command "ssh client first-time enable"to enable the first-time ac
cess function and try again.
[AR2]ssh client first-time enable
[AR2]stelnet 192.168.1.2
Please input the username:ccna
Trying 192.168.1.2 ...
Press CTRL+K to abort
Connected to 192.168.1.2 ...
The server is not authenticated. Continue to access it? (y/n)[n]:y
Dec 16 2019 23:16:37-08:00 AR2 %%01SSH/4/CONTINUE_KEYEXCHANGE(l)[0]:The server h
ad not been authenticated in the process of exchanging keys. When deciding wheth
er to continue, the user chose Y.
[AR2]
Save the server's public key? (y/n)[n]:y
Dec 16 2019 23:16:39-08:00 AR2 %%01SSH/4/SAVE_PUBLICKEY(l)[1]:When deciding whet
her to save the server's public key 192.168.1.2, the user chose Y.
[AR2]
The server's public key will be saved with the name 192.168.1.2. Please wait...
Enter password:
<AR1>
至此,在R2上通过SSH成功登陆R1 实验结束。
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简单拓扑
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