Some editors will alter the text as you paste, or do something with newlines or something that makes the authorized_keys file invalid. F21 is right that you need to copy the key out of the PuTTYGen window instead of saving the file, but after copying, the way you paste may have significant impact on whether your key will work or not. Just a tip I hope may help someone else with the headaches I had.

Why is this happening and how can I fix this?

Received disconnect from 192.168.1.7: 14: No supported authentication methods available Trying public key file /etc/ssh/username/authorized_keysįailed publickey for username from 192.168.1.7 port 14343 ssh2 Test whether pkalg/pkblob are acceptable [preauth[Ĭhecking blacklist file /usr/share/ssh/blacklist.RSA-1023Ĭhecking blacklist file /etc/ssh/blacklist.RSA-1023 Userauth-request for user username service ssh-connection method publickey If I run sshd in debug mode, I see: PAM: initializing for 'username' When I connect using putty or WinSCP, I get an error saying No supported authentication methods available (server sent public key). Set up sshd_config like so: PubkeyAuthentication yesĪuthorizedKeysFile /etc/ssh/%u/authorized_keys

Moved the public key to /etc/ssh/myusername/authorized_keys (I am using encrypted home directories).

I then set about trying to get it to use public/private key authentication. I installed opensshd via apt-get and was able to connect to the server using putty with my username and password. I have a 12.10 server setup in a virtual machine with its network set to bridged (essentially will be seen as a computer connected to my switch).

Navicat 12 key