Hi,

I need to sftp from one Unix Server (source) to another (destination) (both SunOS) non-interactively.

I did the following :

1) Generated public key in source server in $HOME/.ssh dir without giving any passphrase
2) Added the contents of the public key generated to authorized_keys2 file in destination server's $HOME/.ssh directory
3) Permissions for the .ssh dir's is 0700 and the key files is 0600
4) Created a file named "confg" in source $HOME/.ssh dir which has the below contents.


Host *
BatchMode yes
PasswordAuthentication no

Still its asking me for a password (not passphrase) when I give sftp destinationuserid@destinationservername in client

When I give the password, its getting connected. But I want non-interactive login where the sftp command should not be prompting me for any password ?

Please help me what I need to do here or if I am doing anything wrong here ?

Thanks,
Sabari Nath S

The home directory of the remote account has to be 755. For starters. And the key file gets named authorized_keys. If there are more than one key file just use

cat keyfile1 keyfile2 ... keyfilen > authorized_keys

ssh -vvv  remotebox

Also the permissions on the .ssh subdirectory should be set to 700 and the permissions of every file in the .ssh subdirectory should be 600.

Hi,

I had already changed the permissions for all files under .ssh to 600 and the .ssh dir to 700

Client:

$ ls -ld .ssh
drwx------   2 cdbcdi   other        512 Mar 12 00:04 .ssh

$ cd .ssh

$ ls -l
-rw-------   1 cdbcdi   other         47 Mar 11 14:42 config
-rw-------   1 cdbcdi   other        883 Mar 11 12:48 id_rsa
-rw-------   1 cdbcdi   other        332 Mar 11 12:49 id_rsa.pub

$ cat config
Host *
BatchMode yes
PasswordAuthentication no

$ ls -ld b2cint (Home Directory)
drwxr-xr-x   3 b2cint   custapp      512 Mar 11 11:05 b2cint

$ cd b2cint/.ssh

$ ls -ld ../.ssh
drwx------   2 b2cint   custapp      512 Mar 11 14:39 ../.ssh

$ ls -l
-rw-------   1 b2cint   custapp      332 Mar 11 14:39 authorized_keys
-rw-------   1 b2cint   custapp      332 Mar 11 14:38 authorized_keys2

The source needs to have the id_rsa.pub key of the user that will be sending the file copied to the destination server user's home/.ssh/authorized_keys or authorized_keys2

It already has. I have already placed the contents of id_rsa.pub to authorized_keys2 file under $HOME/.ssh dir in the host.

authorized_keys2 has been depreciated for 8 years now. Just cat all of them together into authorized_keys.