LinuxQuestions.org - Not able to access display of clearOS on ubuntu using ssh -X

No it is not working either. This /etc/ssh/sshd_config of clearos.
Code:
#        $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 djm Exp $



# This is the sshd server system-wide configuration file.  See

# sshd_config(5) for more information.



# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin



# The strategy used for options in the default sshd_config shipped with

# OpenSSH is to specify options with their default value where

# possible, but leave them commented.  Uncommented options change a

# default value.



Port 22

#AddressFamily any

#ListenAddress 0.0.0.0

#ListenAddress ::



# Disable legacy (protocol version 1) support in the server for new

# installations. In future the default will change to require explicit

# activation of protocol 1

Protocol 2



# HostKey for protocol version 1

#HostKey /etc/ssh/ssh_host_key

# HostKeys for protocol version 2

#HostKey /etc/ssh/ssh_host_rsa_key

#HostKey /etc/ssh/ssh_host_dsa_key



# Lifetime and size of ephemeral version 1 server key

#KeyRegenerationInterval 1h

#ServerKeyBits 1024



# Logging

# obsoletes QuietMode and FascistLogging

#SyslogFacility AUTH

SyslogFacility AUTHPRIV

#LogLevel INFO



# Authentication:



#LoginGraceTime 2m

PermitRootLogin yes

#StrictModes yes

#MaxAuthTries 6

#MaxSessions 10



#RSAAuthentication yes

#PubkeyAuthentication yes

#AuthorizedKeysFile        .ssh/authorized_keys

#AuthorizedKeysCommand none

#AuthorizedKeysCommandRunAs nobody



# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts

#RhostsRSAAuthentication no

# similar for protocol version 2

#HostbasedAuthentication no

# Change to yes if you don't trust ~/.ssh/known_hosts for

# RhostsRSAAuthentication and HostbasedAuthentication

#IgnoreUserKnownHosts no

# Don't read the user's ~/.rhosts and ~/.shosts files

IgnoreRhosts yes



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

#PasswordAuthentication yes

#PermitEmptyPasswords no

PasswordAuthentication yes



# Change to no to disable s/key passwords

#ChallengeResponseAuthentication yes

ChallengeResponseAuthentication no



# Kerberos options

#KerberosAuthentication no

#KerberosOrLocalPasswd yes

#KerberosTicketCleanup yes

#KerberosGetAFSToken no

#KerberosUseKuserok yes



# GSSAPI options

#GSSAPIAuthentication no

GSSAPIAuthentication yes

#GSSAPICleanupCredentials yes

GSSAPICleanupCredentials yes

#GSSAPIStrictAcceptorCheck yes

#GSSAPIKeyExchange no



# Set this to 'yes' to enable PAM authentication, account processing,

# and session processing. If this is enabled, PAM authentication will

# be allowed through the ChallengeResponseAuthentication and

# PasswordAuthentication.  Depending on your PAM configuration,

# PAM authentication via ChallengeResponseAuthentication may bypass

# the setting of "PermitRootLogin without-password".

# If you just want the PAM account and session checks to run without

# PAM authentication, then enable this but set PasswordAuthentication

# and ChallengeResponseAuthentication to 'no'.

#UsePAM no

UsePAM yes



# Accept locale-related environment variables

AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES

AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT

AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE

AcceptEnv XMODIFIERS



AllowAgentForwarding yes

AllowTcpForwarding yes

#GatewayPorts no

#X11Forwarding no

X11Forwarding yes

X11DisplayOffset 10

X11UseLocalhost yes

#PrintMotd yes

#PrintLastLog yes

#TCPKeepAlive yes

#UseLogin no

#UsePrivilegeSeparation yes

#PermitUserEnvironment no

#Compression delayed

#ClientAliveInterval 0

#ClientAliveCountMax 3

#ShowPatchLevel no

#UseDNS yes

#PidFile /var/run/sshd.pid

#MaxStartups 10

#PermitTunnel no

#ChrootDirectory none



# no default banner path

#Banner none



# override default of no subsystems

Subsystem        sftp        /usr/libexec/openssh/sftp-server



# Example of overriding settings on a per-user basis

#Match User anoncvs

        X11Forwarding yes

#        AllowTcpForwarding no

#        ForceCommand cvs server

X11UseLocalhost no
I have restarted the ssh service of clearos.