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I installed Amazon AMI 1.0 and logged in as ec2-user with key. Then I ssh and set a password with sudo passwd ec2-user

But now when I connect via SFTP I get: Disconnected: No supported authentication methods available. I use elastic IP and username ec2-user to connect.

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What have you done to try and solve your own problem? – Drew Khoury Feb 9 '14 at 0:10

If your SFTP program is able to use public keys it is possible to use the service without password.

setup a passwd if run $sudo bash it will take to root #

sudo -s is permanent su, from there it is possible to use passwd.

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If you absolutely need to SFTP in as root, Juan Hernandez's answer on StackOverflow will help:

The message "Please login as the ec2-user user rather than root user." is displayed because a command is executed when you login with the private key. To remove that command edit ~/.ssh/authorized_keys file and remove the command option.

Thanks Juan!

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For ec2-user you need to setup a passwd if run $sudo bash it will take to root #

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What is my root password? – cholden Jan 3 '11 at 12:56
you dont need root passwd when you run $sudo bash it not ask you passwd it will take to root – Rajat Jan 3 '11 at 12:59

For a long time I had a problem using PUTTY to login to my AWS instance using my chosen keypair. It was only when i realised that in the PUTTY GUI under "Auth" there is a subfolder, if you indavertently click on that instead of "Auth" you will see a similarly looking file entry field. If you load the keypair with that you will always get a connection error.

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