ssh 复用和断开

[CongratulateWE]

通过启用 ControlMaster 可以实现 SSH 的复用, 开启后可以共享同一个 TCP 连接来建立多个 SSH 会话. 相比于每次都建立一个新的 ssh 连接, 省去了重复输入密码的过程.

可以在 ~/.ssh/config 中进行配置, 把这段配置加到最后:

Host *
  ControlMaster auto
  ControlPath  ~/.ssh/%r@%h-%p
  ControlPersist  600

man ssh_config

关闭 ssh 复用

应该可以使用 ssh -O exit [path] 关闭 ControlMaster

-O ctl_cmd
Control an active connection multiplexing master process. When the -O option is specified, the ctl_cmd argument is interpreted and passed to the master process. Valid commands are: check (check that the master process is running), forward (request forwardings without command execution), cancel (cancel forwardings), exit (request the master to exit), and stop (request the master to stop accepting further multiplexing requests).

问题

有时候会遇到 'UNIX_LISTENER TOO LONG FOR UNIX DOMAIN SOCKET' 这个问题, 这个应该是我们设定的 ControlPath 超长了.这个时候修改一下路径规则就可以了.

参考这个博客

参考: vscode remote ssh