Hello,

I'm trying to setup an automatical connection between both of my servers (Omen & Maelys) using SSH and RSA Key to backup Omen to Maelys. Both using CentOS 6 64 bits.

On Omen I've generated a SSH RSA key whitout password, I've send it with this command :



Maelys successfuly received this and placed it into ~/.ssh/authorized_keys with my comment "Omen", there is only one entry in this file.

I've edited /etc/ssh/sshd_config on Maelys to have this :



I've restarted sshd and after when I'm trying to connect myself automaticaly from Omen to Maelys I'm asked for password...

I'm sure that's something really stupid but I don't see it.

Hope someone can help me here :), nice Tuesday.

EDIT : I've also restarted sshd on Omen.

Cordially, Koshie

Quote:

Is the 'scp' command broken on your machine? It's much easier than this convoluted workaround and preserves file permissions on the way - which is probably the source of your problems. Try removing the destination file and then running



Oh, and it's generally not a good idea to share keys between ordinary users and root - better that each user has their own key that lets them in as themselves and then give sudo access to whatever they need to do and nothing else.

Quote:

These are all the default options anyway so this didn't need to be done.

If this still doesn't work then you need to check the rest of the permissions on the destination host files and directories. The user's ~/.ssh directory should be chmod 700 and owned by user:user. The authorized_keys file inside it should be chmod 600 and also be owned user:user. You may also want to run the command



as the root user to restore the correct selinux contexts to the directory and all its files.

I was not using 'scp' because I has a permission problem (in root !) and I've not solved it, but with your command it works well, maybe the option '-p' resolv it.

I was using root user because I need to backup some directory like /etc or /var and I've thinked that was the best way to do that properly. The goal is to backup somes directory without using a password, automatically with cron. So it's better to give 'sudo' to my user ? It will ask for password if I'm trying to cron an 'rsync' command on directory owned by root ?

This is permission of /home/user/.ssh :
Permission of the content :

Finally, I've executate the command : and cat authorized_keys (there is always the key in it) and it doesn't works, on Omen I'm always asked for password.

I've of course restarted sshd somes times.

Thanks for your reply.

Quote:

Needs to be 700 on /home/user/.ssh not your current 775. Also authorized_keys needs to be 600 not its current 644.

It works well, thanks for your help and your rapidity :).

Cordially, Koshie.

Thank you for reporting back.

On your behalf (and for posterity) this thread is now marked [SOLVED].