ssh-ProxyJump多跳访问主机

直接裸使用

-J 参数穿透主机

ssh -J unitree@192.168.23.168 admin@192.168.123.139

配置使用

配置 ~/.ssh/config 类似如下可以实现跳跃访问主机：

ssh ⇒ dog-orin ⇒ dog-r11/r12

Host dog-orin
    HostName 192.168.23.168
    User unitree
    Port 22
    IdentityFile /Users/<username>/.ssh/id_rsa
    ForwardX11 yes
    ForwardX11Trusted yes
 
Host dog-r12
    HostName 192.168.123.140
    User admin
    Port 22
    IdentityFile /Users/<username>/.ssh/id_rsa
    ForwardX11 yes
    ForwardX11Trusted yes
    ProxyJump dog-orin
 
Host dog-r11
    HostName 192.168.123.139
    User admin
    Port 22
    IdentityFile /Users/<username>/.ssh/id_rsa
    ForwardX11 yes
    ForwardX11Trusted yes
    ProxyJump dog-orin

对 scp 命令的影响

在这之后 scp 也可以直接传输文件

本质上命令是:

scp -o ProxyJump=unitree@192.168.23.168 /path/to/local/file admin@192.168.123.139:/path/to/remote/destination