http://serverfault.com – I have created a virtual machine and installed Redhat 6. I am having issues connecting using public key authentication. I can use PuTTY on my Windows host to connect to the redhat guest, where I am prompted for a password. I am trying to setup public-key authentication for the root user, so I have created a folder ~/.ssh with what I believe to be the correct permissions. [root@redhat ~]# cd ~/.ssh [root@redhat .ssh]# pwd /root/.ssh [root@redhat .ssh]# ls -la total 16 drwx------. 2 root root 4096 Aug 21 16:28 . dr-x------. 3 root root 4096 Aug 20 17:20 .. -rw-r--r--. 1 root root 250 Aug 20 1 (HowTos)