'Unable to authenticate using any of the configured authentication methods'

[Ingram]

I am new to ssh. I have RH6.0 installed and installed ssh 2.0.13. I am
able to connect on the host machine from a terminal window just fine. An
attempt to connect from a remote machine results in the following debug
output from sshd2:

WARNING: Development-time debugging not compiled in.
WARNING: To enable, configure with --enable-debug and recompile.
WARNING: Development-time debugging not compiled in.
WARNING: To enable, configure with --enable-debug and recompile.
debug: Reading private host key from /etc/ssh2/hostkey
debug: Key comment: 1024-bit dsa hostkey
debug: SshUnixConfig/sshunixconfig.c:270/ssh_server_load_host_key:
Reading publi
c host key from: /etc/ssh2/hostkey.pub
debug: Becoming server.
debug: Creating listener
debug: Listener created
sshd2[15696]: Listener created on port 22.
sshd2[15696]: Daemon is running.
debug: Running event loop
sshd2[15696]: connection from "192.168.1.20"
debug: ssh_server_wrap: creating transport protocol
debug: ssh_server_wrap: creating userauth protocol
sshd2[15696]: DNS lookup failed for "192.168.1.20".
debug: new_connection_callback returning
debug: Remote version: SSH-2.0-3.0 SecureCRT (tm), a product of Van Dyke
Technol
ogies, Inc.

sshd2[15696]: Connection from 192.168.1.20 denied. Authentication as
user x was attempted.
debug: Sshd2/sshd2.c:317/auth_policy_proc: Connection from 192.168.1.20
denied.
Authentication as user x was attempted.
debug: ssh_sigchld_real_callback
sshd2[15696]: Remote host disconnected: Unable to authenticate using any
of the
configured authentication methods
sshd2[15696]: disconnected by application: 'Unable to authenticate using
any of
the configured authentication methods'
debug: Exiting event loop

What's the deal? Any info is GREATLY appreciated.

Ingram