Configuring SSH to accept only keys (already have keys)
I'm a bit new to securing SSH to do this so I appologise if I may not seam so godly to you guys..
I have a system, Redhat 9 that has openssh installed OpenSSH-3.5p-6 including servers and clients..
I am looking to only enable SSH access via keys. Everyone who will be SSH'ng into this box will already have a public/private keypair and will want to use these.. How can I configure SSH to accept these and not password access?
Your help and efforts are much appreciated.
First off, UPGRADE YOUR SSH!!! there was a notification on the home page of LinuxQuestions.org for weeks urging everyone to upgrade to 3.7.1p2 because of security flaws in OpenSSH. Go do that IMMEDIATELY.
Next, edit the following lines in /etc/ssh/sshd_config and restart your ssh daemon
If you want only Pubkey and nothing else, you can search through the whole file and turn off any other type of auth. Just make sure you have Protocol 2 because if you turn off RSAAuthentication you will need to use DSA (ssh2-only).
Thats a fair enough comment... However.. how do I add my key to the system to allow that to be authenticated?
Is it a case of cat key.pub > .ssh/authorized_keys
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