How do you setup server to server SFTP to use public-key authentication instead of user account and password?
Remember to
chmod 700 .ssh
and also
chmod 600 authorized_keys
In the client you need to generate its public key and add it to server's authorized key list.
The following are the commands you can use.
On client machine
ssh-keygen -t dsa -f id_dsa
mv id_dsa* ~/.ssh/
scp ~/.ssh/id_dsa.pub USER_NAME@SERVER:~/.ssh/HOST_NAME.key
On the server
cat ~/.ssh/HOST_NAME.key >> ~/.ssh/authorized_keys2
This is a solution for windows users
I had a similar issue on windows so I used Putty from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
If you need to generate a public key then use: http://the.earth.li/~sgtatham/putty/latest/x86/puttygen.exe
Then, when you want to automate a batch to download from the FTP server the Pageant in order to load the private key into session http://the.earth.li/~sgtatham/putty/latest/x86/pageant.exe
Then use the PSFTP to connect and perform actions http://the.earth.li/~sgtatham/putty/latest/x86/psftp.exe
So here is sample code for the batch:
!--Loading the key to session--!
@C:\pageant.exe "C:\privatekey.ppk"
!--Calling the PSFTP.exe with the uaser and sftp address + command list file--!
@C:\psftp user@your.server.address -b C:\sftp_cmd.txt
Command list file (sftp_cmd.txt) will like like this:
mget "*.*" !--downloading every thing
!--more commands can follow here
close
Now, all you need to to schedule it in scheduled tasks *I wish it was simple as unix's cron job....