PuTTY + ssh - "server refused our key"

CORE OS Solution:

If using coreos set the username ‘core’ instead of ‘root’.

Once you’ve logged in you can use ‘sudo -i’ to become root.

Just check your secure log. In my case (Centos) the file is locate in /var/log/secure.

In my log: Jan 24 16:52:40 server sshd[19625]: Authentication refused: bad ownership or modes for directory /home/user

After I changed the modes /home/user from 0755 to 0700 I can login with the key.

These are the steps to setup putty ssh login profile, hope this help <br>========================================= <br>ssh-keygen -t rsa -b 2048 -f mykey -C [me@domain.com < your comment] <br>cat mykey.pub >> ~/.ssh/authorized_keys <br>========================================= <br>download mykey <br>download PuTTYgen from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html <br>start puttygen <br>go to conversion > import key <br>select downloaded mykey <br>Then [Save private key], you can change key comment if needed <br>========================================= <br>Start putty <br>Key in the host name/ip address together with port, if non standard port is used <br>Then go to [connection] > [ssh] > [auth] <br>Click [Browse] of [Private key file for authentication], choose the previous generated [mykey.ppk] <br>Go back to [Session] <br>Enter the name you want at [Saved sessions] field, then [Save] <br>After all that, hit [Open] <br>Enter your user name when prompted, your should be logged in now <br>========================================= <br>Remeber to remove the generated key files from the server <br>rm mykey mykey.pub <br>========================================= <br>If everything is good, follow the article you mentioned to disable the ssh password login.