sftp in ssh config

今天在使用 fabric 中的 put 函数上传文件到服务器时，抛出 Connection closed 的异常，Google 之后发现 put 使用 sftp 进行上传，于是使用 sftp 连接服务器：

$ sftp user@domain.org 
Connecting to domain.org... 
user@domain.org's password: 
subsystem request failed on channel 0 
Connection closed

发现连接失败.

解决方案：

https://forums.gentoo.org/viewtopic-t-802682-start-0.html

In your /etc/ssh/sshd_config (not ssh_config) file, you probably have a line like this:

Code:

Subsystem sftp /usr/lib/misc/sftp-server

If so, it's the cause of this error message. That's especially true if your sftp user is logging into a chrooted environment, where "/usr/lib" probably does not exist. My own sftp server is configured this way.

However, SSHD has the sftp functionality built-in and does not need to execute an external "helper" program like that. So, if you have a line like the above, it can be fixed by changing it to:

Code:

Subsystem sftp internal-sftp