windows 10 ssh proxycommand 报错: “posix_spawn: No such file or directory”(46)

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本文解决了Windows 10上使用SSH ProxyCommand时遇到的错误，包括'posix_spawn:Nosuchfileordirectory'问题，权限问题及MacOS下的错误。提供了修改命令路径，设置文件权限及调整VSCode配置的方法。

windows 10 ssh proxycommand 报错: “posix_spawn: No such file or directory”

问题1
- 解决方案
- Long Story
问题2：权限问题
- 解决方案
问题3：MacOS
- 解决方案

问题1

ssh使用ProxyCommand通过跳板机连接目标机，报错：

CreateProcessW failed error:2
posix_spawn: No such file or directory

如果用VS code也会报错：

...
[20:50:57.334] > CreateProcessW failed error:2
> 
[20:50:57.344] > posix_spawn: No such file or directory
> 过程试图写入的管道不存在。
> 
...

解决方案

将ssh改成C:\Windows\System32\OpenSSH\ssh.exe或者ssh.exe，参见这篇文章。
例如，对于下面的原始命令：
ssh -o ProxyCommand="ssh 192.168.199.6 -W %h:%p" 192.168.199.5
修改后为：
ssh -o ProxyCommand="ssh.exe 192.168.199.6 -W %h:%p" 192.168.199.5

Long Story

问题2：权限问题

vscode使用了私钥id_rsa但权限不正确。

解决方案

Linux：chmod 400 id_rsa
Windows: 在Windows中右键属性->安全->高级，删除所有继承和主体，添加->选择主体->高级…->立即查找->选择当前登录的用户并给予权限即可

问题3：MacOS

macOS报错：

[19:55:50.141] Resolver error: Error: 
	at Function.Create (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:1:130564)
	at Object.t.handleInstallOutput (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:1:127671)
	at Object.t.tryInstallWithLocalServer (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:102339)
	at processTicksAndRejections (internal/process/task_queues.js:94:5)
	at async /Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:104310
	at async Object.t.withShowDetailsEvent (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:109845)
	at async /Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:100912
	at async R (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:97702)
	at async Object.t.resolveWithLocalServer (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:100561)
	at async Object.t.resolve (/Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:107840)
	at async /Users/leonliang/.vscode/extensions/ms-vscode-remote.remote-ssh-0.55.0/out/extension.js:127:141955
[19:55:50.143] ------