SSH from windows to linux using public key authentication

[Stephen Carville]

Check your permissions on $HOME/.ssh.  Must be 700 to work correctly. 
Bad permissions fails silently even with debug set.  Check 
/var/log/secure and, if I'm right, you should see a line like:

Authentication refused: bad ownership or modes for directory etc...

Linux Linux wrote:
> Hello Friends,
> I am having problem using SCP to copy files from windows to linux using
> public key authentication.
> I have two linux computer (RHEL AS 3) named as drolinux and prolinux.
>> From windows to linux(drolinux) using public key authentication works 
>> just
> fine. logs attached for scp -v
> I have copied exact same public key to my Prolinux and it's not working.
> I tried copying authorized_keys from drolinux to prolinux and still I have
> no success to do ssh from windows to prolinux using public key
> authentication.
> Any help is appreciated.
> note: I do not have access to logs on my both linux server.
> 
> scp -v From windows to linux (hostname: drolinux) working fine.
> 
> debug1: Authentications that can continue:
> publickey,password,keyboard-interactive
> debug1: Next authentication method: publickey
> debug1: Trying private key: /C=/Documents and
> Settings/testuser/.ssh/identity
> debug1: Trying private key: /C=/Documents and Settings/testuser/.ssh/id_rsa
> debug1: Offering public key: /C=/Documents and 
> Settings/testuser/.ssh/id_dsa
> debug1: Server accepts key: pkalg ssh-dss blen 434
> debug1: read PEM private key done: type DSA
> debug1: Authentication succeeded (publickey).
> debug1: channel 0: new [client-session]
> debug1: Entering interactive session.
> debug1: Sending command: scp -v -t /home/testuser/.
> Sending file modes: C0700 0 try.doc
> try.doc                                      100%    0     0.0KB/s   00:00
> debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
> debug1: channel 0: free: client-session, nchannels 1
> debug1: Transferred: stdin 0, stdout 0, stderr 0 bytes in 1.0 seconds
> debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 0.0
> debug1: Exit status 0
> scp -v from windows to Linux (hostname: prolinux) not working using public
> key and works only with password.
> 
> debug1: Authentications that can continue:
> publickey,password,keyboard-interactive
> debug1: Next authentication method: publickey
> debug1: Trying private key: /C=/Documents and
> Settings/testuser/.ssh/identity
> debug1: Trying private key: /C=/Documents and Settings/testuser/.ssh/id_rsa
> debug1: Offering public key: /C=/Documents and 
> Settings/testuser/.ssh/id_dsa
> debug1: Authentications that can continue:
> publickey,password,keyboard-interactive
> debug1: Next authentication method: keyboard-interactive
> debug1: Authentications that can continue:
> publickey,password,keyboard-interactive
> debug1: Next authentication method: password
> testuser at prolinux's password:
> debug1: Authentication succeeded (password).
> debug1: channel 0: new [client-session]
> debug1: Entering interactive session.
> debug1: Sending command: scp -v -t /home/testuser/.
> Sending file modes: C0700 0 try.doc
> try.doc                                      100%    0     0.0KB/s   00:00
> debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
> debug1: channel 0: free: client-session, nchannels 1
> debug1: Transferred: stdin 0, stdout 0, stderr 0 bytes in 1.1 seconds
> debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 0.0
> debug1: Exit status 0
> $

-- 
Stephen Carville <stephen at totalflood.com>
Systems Engineer
Land America