02-25-2011
sftp asks for a password only if there is an issue with keys being placed at correct locations and permissions(file or directory). Could you make sure that
1. The keys should be shared between the client and the server.
2. The .ssh directory should be present in the home directory of the user.
3. The {home_dir}/.ssh/id_dsa.pub or {home_dir}/.ssh/id_rsa.pub file contains the public key. (server side)
4. The client public key key should be placed in the {home_dir}/.ssh/authorized_keys2 file( on the server).
5. The .ssh directory on both client as well as server should be owned by the user and with 700 permissions.
6. The files inside the directory should be with 600 permissions.
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LEARN ABOUT SUSE
ssh-copy-id
SSH-COPY-ID(1) General Commands Manual SSH-COPY-ID(1)
NAME
ssh-copy-id - install your public key in a remote machine's authorized_keys
SYNOPSIS
ssh-copy-id [-i [identity_file]] [user@]machine
DESCRIPTION
ssh-copy-id is a script that uses ssh to log into a remote machine (presumably using a login password, so password authentication should be
enabled, unless you've done some clever use of multiple identities)
It also changes the permissions of the remote user's home, ~/.ssh, and ~/.ssh/authorized_keys to remove group writability (which would oth-
erwise prevent you from logging in, if the remote sshd has StrictModes set in its configuration).
If the -i option is given then the identity file (defaults to ~/.ssh/id_rsa.pub) is used, regardless of whether there are any keys in your
ssh-agent. Otherwise, if this:
ssh-add -L
provides any output, it uses that in preference to the identity file.
If the -i option is used, or the ssh-add produced no output, then it uses the contents of the identity file. Once it has one or more fin-
gerprints (by whatever means) it uses ssh to append them to ~/.ssh/authorized_keys on the remote machine (creating the file, and directory,
if necessary)
SEE ALSO
ssh(1), ssh-agent(1), sshd(8)
OpenSSH 14 November 1999 SSH-COPY-ID(1)