Public key/authorized_keys: Server refused our key

[Adam]

I was wondering is there anyone experienced this kind of issue before? I was getting this error when configuring authorized_keys in /home/tc/.ssh/authorized_keys

Configuration steps are as follows:
1.   Generate public/private key pair using PuTTY Key Generator
2.   Copy generated public key to /home/tc/.ssh/authorized_keys

tc@Core1:/$ ls -la /home/tc/ | grep ssh
drwxr-sr-x    2 tc       staff           60 Aug 17 17:25 .ssh/
tc@Core1:/$

tc@Core1:/$ ls -la /home/tc/.ssh/ | grep key
-rw-r--r--    1 tc       staff          226 Aug 17 17:25 authorized_keys
tc@Core1:/$

3.   Configured putty client with the private key
4.   Trying to login but getting the following error message. “Server refused our key”

Using username "tc".
Server refused our key
tc@192.168.10.11's password:

[gerald_clark]

Putty keys are not directly usable by Linux sshd.  Please read your putty documentation.

[tinypoodle]

Also your permissions are way more promiscuous than necessary.
Try:

Code: [Select]

chmod g-rsx,o-rx /home/tc/.ssh
chmod g-r,o-r /home/tc/.ssh/authorized_keys