Display xclock / unable to connect to non-root user

[Linux Beginner]

Team

I installed FC2 on my dual bott pc.  I created user oracle prior
to installing Oracle.
When i did
ssh -F /etc/ssh/ssh_config -X oracle at localhost everything worked
fine and i could invoke /usr/X11R6/bin/xclock; But later i
carried out changes as advised in

http://www.oracle-base.com/articles/10g/OracleDB10gInstallationOnFedora2.php

Changed the redhat-release file too. 

But now i am not able to connect to oracle user. The following
is the summary.


[root at localhost ssh]# cat /etc/ssh/ssh_config
#       $OpenBSD: ssh_config,v 1.16 2002/07/03 14:21:05 markus
Exp $
  
# This is the ssh client system-wide configuration file.  See
# ssh_config(5) for more information.  This file provides
defaults for
# users, and the values can be changed in per-user configuration
files
# or on the command line.
  
# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is
set.
# Thus, host-specific definitions should be at the beginning of
the
# configuration file, and defaults at the end.
  
# Site-wide defaults for various options
  
# Host *
#   ForwardAgent no
#   ForwardX11 no
#   RhostsAuthentication no
#   RhostsRSAAuthentication no
#   RSAAuthentication yes
#   PasswordAuthentication yes
#   HostbasedAuthentication no
#   BatchMode no
#   CheckHostIP yes
#   StrictHostKeyChecking ask
#   IdentityFile ~/.ssh/identity
#   IdentityFile ~/.ssh/id_rsa
#   IdentityFile ~/.ssh/id_dsa
#   Port 22
#   Protocol 2,1
#   Cipher 3des
#   Ciphers
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc
#   EscapeChar ~
Host *
        ForwardX11 yes
        ForwardX11Trusted yes
[root at localhost ssh]#
[root at localhost ssh]#
[root at localhost ssh]#
[root at localhost ssh]# ssh -F /etc/ssh/ssh_config  -X
oracle at localhost
/etc/ssh/ssh_config: line 39: Bad configuration option:
ForwardX11Trusted
/etc/ssh/ssh_config: terminating, 1 bad configuration options
[root at localhost ssh]#


I removed the last line for Trusted yes and now i am not able to
connect to oracle.

[root at localhost ssh]#
[root at localhost ssh]# ssh -v -F /etc/ssh/ssh_config  -X
oracle at localhost
OpenSSH_3.6.1p2, SSH protocols 1.5/2.0, OpenSSL 0x0090701f
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Rhosts Authentication disabled, originating port will
not be trusted.
debug1: Connecting to localhost [127.0.0.1] port 22.
debug1: Connection established.
debug1: identity file /root/.ssh/identity type -1
debug1: identity file /root/.ssh/id_rsa type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version
OpenSSH_3.6.1p2
debug1: match: OpenSSH_3.6.1p2 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.6.1p2
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'localhost' is known and matches the RSA host key.
debug1: Found key in /root/.ssh/known_hosts:1
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue:
publickey,password,keyboard-interactive
debug1: Next authentication method: publickey
debug1: Trying private key: /root/.ssh/identity
debug1: Trying private key: /root/.ssh/id_rsa
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Next authentication method: keyboard-interactive
debug1: Authentications that can continue:
publickey,password,keyboard-interactive
debug1: Next authentication method: password
oracle at localhost's password:
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: channel 0: request pty-req
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: channel 0: request x11-req
debug1: channel 0: request shell
debug1: channel 0: open confirm rwindow 0 rmax 32768
debug1: channel_free: channel 0: client-session, nchannels 1
Connection to localhost closed by remote host.
Connection to localhost closed.
debug1: Transferred: stdin 0, stdout 0, stderr 81 bytes in 0.2
seconds
debug1: Bytes per second: stdin 0.0, stdout 0.0, stderr 458.4
debug1: Exit status -1
[root at localhost ssh]#
[root at localhost ssh]#
[root at localhost ssh]#
[root at localhost ssh]#

I tried connecting as my own login user(not oracle) but the
error message continues. It means i am not able to connect to
any non-root user by this command. 

Any help would be appreciated.

Thanks



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