title: putty connect successfully, while pscp run into "server refused our key"
body: <p>I create one SUSE linux EC2 instance in Amazon AWS.</p>
  
  <p>And it is OK to 'putty' to access the instance (use the key-pair file, let's call it key.pem, I have converted it to key.ppk), and when log in the host, I am using 'root' user name, and it is OK.</p>
  
  <pre>
  login as: root
  Authenticating with public key "imported-openssh-key"
  Last login: Tue Apr 15 15:17:55 2014 from x.x.x.x
  SUSE Linux Enterprise Server 11 SP3 x86_64 (64-bit)
  
  As "root" use the:
    - zypper command for package management
    - yast command for configuration management
  
  Management and Config: https://www.suse.com/suse-in-the-cloud-basics
  Documentation: http://www.suse.com/documentation/sles11/
  
  Have a lot of fun...
  </pre>
  
  <p>While when I try to use 'pscp' to copy files, it always failed, and outputs</p>
  
  <pre>
  Server refused our key
  Using Keyboard-interactive authentication.
  Password:
  </pre>
  
  <p>My 'pscp' command usage as following</p>
  
  <pre>
  C:\Users\t440s\Downloads\putty\pscp.exe -i key.pps test.txt root@myhost.compute.amazonaws.com:/tmp
  </pre>
  
  <p>Actually, I do not know my password.</p>
  
  <p>And I checked following section of /etc/ssh/sshd_config, seems root do not need password</p>
  
  <pre>
  
  # Authentication:
  
  #LoginGraceTime 2m
  PermitRootLogin without-password
  
  PasswordAuthentication no
  </pre>
  
  <p>I am using win8.</p>
  
  <p>Please help me. Yours.</p>