Ubuntu 10.10 Open Ports

I have an Ubuntu 10.10 server.  Right now its configured to accept SSH connections only from specific servers with a certificate installed.  

I want to change the config so it allows anyone to connect via SSH as long as they have the username and password.

How do i do this?
deklinmAsked:
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farzanjConnect With a Mentor Commented:
So, as I understand no IP ranges or host names are blocked in the firewall or through TCP wrappers.  Are the user names a possible issue?

In the sshd_config file, what is the value for:
AuthorizedKeysFile
?
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ddiazpConnect With a Mentor Commented:
Change:

PasswordAuthentication
ChallengeResponseAuthentication

to yes.

Also, set UsePAM to yes if it's set to No.

PS: Only make these changes if you have direct access to the servers' console. Do NOT do this if you ONLY have SSH access as you might get locked out if you have some other config on your file outside the defaults that we're ignoring.

Naturally, restart sshd service after.
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