Hi all,

I have 3 servers with the same configuration using CentOS 6.3, and they all have a common user called user1.

For each server i have created a pair of ssh keys using the command:
ssh-keygen -t rsa
(all fields were left blank)

And after this i have copied the contents of each id_rsa.pub to each others authorized_keys2 file.

All good so far, but everytime i try to connect between servers it keeps asking me the user1 password.

Any thoughts?

Thanks

See secure log. Try disabling selinux. Setenforce 0. Maybe too wide permissions on the ssh folder or keys

Hi,
The most common issue when copying keys manually to hosts are file permissions.
the .ssh directory should be owned by the user, and have permissions 700 or u=rwx (ls -la ~ | grep ssh should give you a: drwx------)
files contained within the .ssh directory should be set as:
id_rsa - 400 or 600
id_rsa.pub - 600
known_hosts - 600 or 640

*late addition (thanks linosaurusroot)
and of course your public key entry in the authorized_keys or authorized_keys2 file (i just hardlink the 2)
with permissions 600.

if your key files (private) are readable/writable by anyone else (including group membership) then openssh will deny the use of the keys.
in future, use the ssh-copyid command to upload the files, it will set the correct permissions for you automatically.
Hope that solves your issue.

authorized_keys2- Y U not use authorized_keys ?