SSH without password

Ephracis · 12-10-2004, 12:40 PM

I am using OpenSSH 3.9p1.

I checked the config-file and saw the rows:

Code:

# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication yes
PermitEmptyPasswords no

If I would change the "password authentication" to "no", how would I login then?

sigsegv · 12-10-2004, 12:57 PM

Quote:

Originally posted by MezzyMeat
If I would change the "password authentication" to "no", how would I login then?

You wouldn't unless you were using keys or kerberos or something else.

Ephracis · 12-10-2004, 01:42 PM

Quote:

Originally posted by sigsegv
You wouldn't unless you were using keys or kerberos or something else.

Yes, but that's what I wanted to know. How do I use keys or kerberos and what are/do they?

bulliver · 12-10-2004, 01:50 PM

What you do is copy the ouput of your public key (id_dsa.pub) to the file ~/.ssh/authorized_keys on the server you want to ssh to. Now you have a passwordless login. (you just type in your passphrase)

The benefit of this, is that if you don't have an account or known_hosts file on the server, then you will not even get a passwd prompt to try and brute force.

edafe · 02-25-2005, 02:30 PM

Step-by-step instructions on how to use public key authentication with SSH:

http://www.edafe.org/slackware/index...authentication

Regards,
Edafe