SSH Config

介紹

我們可以在 ~/.ssh/confg 內設定機器的資訊， 如此一來就可以更方便的使用 SSH。

一般設定

使用密碼：

Host machine1
    HostName machine1.mydomain.com
    Port 7788   # default is 22
    User username

使用 Key：

Host machine1
    HostName machine1.mydomain.com
    User username
    Port 7788   # default is 22
    IdentityFile ~/.ssh/machine   # your private key

SOCKS5 Proxy

Host machine1
    HostName machine1.mydomain.com
    User username
    Port 7788   # default is 22
    DynamicForward 1234   # proxy at localhost port 1234
    IdentityFile ~/.ssh/machine   # your private key

Jump Host

Host machine1
    HostName machine1.mydomain.com
    User username
    IdentityFile ~/.ssh/machine

# machine1 -> machine2
Host machine2
    HostName machine2.mydomain.com
    ProxyJump machine1

# machine1 -> machine2 -> machine3
Host machine3
    HostName machine3.mydomain.com
    ProxyJump machine2

參考

• Gentoo Wiki - SSH jump host