Adding a public key to ~/.ssh/authorized_keys does not log me in automatically

Question

I added the public SSH key to the authorized_keys file. ssh localhost should log me in without asking for the password.

I did that and tried t

Answer 1

SELinux can also cause authorized_keys not to work. Especially for root in CentOS 6 and 7. There isn't any need to disable it though.

Once you've verified your permissions are correct, you can fix this like so:

chmod 700 /root/.ssh
chmod 600 /root/.ssh/authorized_keys
restorecon -R -v /root/.ssh