sftp
Liunx sftp上传报错：failed to open a secure file transfe session
Linux 服务器 sftp 上传文件时报错：failed to open a secure file transfer session
Linux SFTP 登录时报错：Received unexpected end-of-file
Linux 使用 SFTP 登录时报错：
Received unexpected end-of-file from SFTP server
