where to place the Public key

[Manindhar G Jayabalan]

I am using com.sshtools.j2ssh API for SFTP connections. I can connect using user name & password. But i want to connect thru public & private key.

what is the folder structure to place the public key in SFTP server?

And also How to check the configuration on SFTP server regarding public key?

[Ernest Friedman-Hill]

Hi,

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[Lewin Chan]

What I'm gonna say is linux specific possibly, but the concepts are pretty much the same regardless

You've created a public private key pair using ssh-keygen so that you have a id_rsa, and id_rsa.pub (Use your preferred too here, on windows I always use cygwin ssh-user-config script and then import into other tools as required)

sftp id_rsa.pub onto your target machine.

ssh onto your target machine (which is of course Unix style)

mkdir ~/.ssh

cd ~/.ssh

cat ~/id_rsa.pub >> authorized_keys2

cd ..

chmod -R 700 .ssh

The last step is possibly optional depending on your umask, but I do tend to find that ssh servers get a bit uppity if the .ssh directory and contents are group/world readable.

Logout and Login.

authorized_keys2 is for ssh2 authentication, authorized_keys for ssh1 authentication. ssh2 is more secure than ssh1, and most servers should support it.

Lewin