[OpenIndiana-discuss] X11 Forwarding.. Can't Open Display

Sun Aug 21 18:39:01 UTC 2011

On Windows, I use Xming (it's worked prior to the upgrade) and Ubuntu.  I've
also just ssh'd from the OpenIndiana host back into itself to try, I
remember this worked in the past to test.

The error when launching something like gedit is always:
 Gtk-WARNING **: cannot open display: localhost:x.0

Where x is the Offset for the session.  Echo $DISPLAY returns back the
correct information (as far as I know).

Sorry for the newb questions, I'm sure this is really easy.

Attached are the configs (still unclear what the difference is for
ssh_config and sshd_config..)

Between changes I've restarted network/ssh and I've also rebooted.  I got
tired of rebooting and decided to ask for help :)

On Sun, Aug 21, 2011 at 10:12 AM, Sriram Narayanan <sriram at belenix.org>wrote:

> Sorry, I just realized that you're performing an SSH X11 forwarding,
> so xhost+ won't apply.
>
> -- Sriram
>
> On Sun, Aug 21, 2011 at 10:41 PM, Sriram Narayanan <sriram at belenix.org>
> wrote:
> > Some things to check:
> > 1. Did you reload sshd after you changed the config file ?
> > 2. Did you perform an xhost + ?
> >
> > -- Sriram
> >
> > On Sun, Aug 21, 2011 at 10:35 PM, Serge Fonville
> > <serge.fonville at gmail.com> wrote:
> >> Hi,
> >>
> >> A few questions:
> >> Have you looked at the settings in sshd_config.
> >> What error do you get
> >> What software did you use.
> >>
> >> Kind regards/met vriendelijke groet,
> >>
> >> Serge Fonville
> >>
> >> http://www.sergefonville.nl
> >>
> >> Convince Google!!
> >> They need to add GAL support on Android (star to agree)
> >> http://code.google.com/p/android/issues/detail?id=4602
> >>
> >>
> >> 2011/8/21 Jonathan Leafty <jleafty+openindianadiscuss at gmail.com>
> >>
> >>> I recently upgraded my OpenSolaris b134 install to OI 148 and then 151a
> >>>
> >>> I can't seem to get X11 Forwarding to work, every attempt ends in:
> >>> cannot open display: localhost:10.0
> >>>
> >>> It looks like it wasn't enabled after the upgrade in
> /etc/ssh/ssh_config so
> >>> I enabled it there (plus ForwardX11Trusted).  sshd_config has it
> enabled.
> >>>
> >>> I've tried this from a Windows and Ubuntu box, same result
> >>>
> >>> ssh -v doesn't show anything wrong and I show the OI box listening on
> 6010
> >>> (or whatever display offset)
> >>>
> >>> I'm honestly not sure what to do next.
> >>>
> >>> --
> >>> Jonathan
> >>> _______________________________________________
> >>> OpenIndiana-discuss mailing list
> >>> OpenIndiana-discuss at openindiana.org
> >>> http://openindiana.org/mailman/listinfo/openindiana-discuss
> >>>
> >> _______________________________________________
> >> OpenIndiana-discuss mailing list
> >> OpenIndiana-discuss at openindiana.org
> >> http://openindiana.org/mailman/listinfo/openindiana-discuss
> >>
> >
> >
> >
> > --
> > Belenix: www.belenix.org
> >
>
>
>
> --
> Belenix: www.belenix.org
>
> _______________________________________________
> OpenIndiana-discuss mailing list
> OpenIndiana-discuss at openindiana.org
> http://openindiana.org/mailman/listinfo/openindiana-discuss
>
-------------- next part --------------
# Copyright (c) 2001 by Sun Microsystems, Inc.
# All rights reserved.
#
# ident	"%Z%%M%	%I%	%E% SMI"
#
# This file provides defaults for ssh(1).
# The values can be changed in per-user configuration files $HOME/.ssh/config
# or on the command line of ssh(1).

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file /etc/ssh/ssh_config
#
# Any configuration value is only changed the first time it is set.
# host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Example (matches compiled in defaults):
#
Host *
#   ForwardAgent no
ForwardX11 yes
ForwardX11Trusted yes
#   PubkeyAuthentication yes
#   PasswordAuthentication yes
#   FallBackToRsh no
#   UseRsh no
#   BatchMode no
#   CheckHostIP yes
#   StrictHostKeyChecking ask
#   EscapeChar ~
-------------- next part --------------
#
# Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
#
# Configuration file for sshd(1m) (see also sshd_config(4))
#

# Protocol versions supported
#
# The sshd shipped in this release of Solaris has support for major versions
# 1 and 2.  It is recommended due to security weaknesses in the v1 protocol
# that sites run only v2 if possible. Support for v1 is provided to help sites
# with existing ssh v1 clients/servers to transition. 
# Support for v1 may not be available in a future release of Solaris.
#
# To enable support for v1 an RSA1 key must be created with ssh-keygen(1).
# RSA and DSA keys for protocol v2 are created by /etc/init.d/sshd if they
# do not already exist, RSA1 keys for protocol v1 are not automatically created.

# Uncomment ONLY ONE of the following Protocol statements.

# Only v2 (recommended)
Protocol 2

# Both v1 and v2 (not recommended)
#Protocol 2,1

# Only v1 (not recommended)
#Protocol 1

# Listen port (the IANA registered port number for ssh is 22)
Port 22

# The default listen address is all interfaces, this may need to be changed
# if you wish to restrict the interfaces sshd listens on for a multi homed host.
# Multiple ListenAddress entries are allowed.

# IPv4 only
ListenAddress 0.0.0.0
# IPv4 & IPv6
#ListenAddress ::

# If port forwarding is enabled (default), specify if the server can bind to
# INADDR_ANY. 
# This allows the local port forwarding to work when connections are received
# from any remote host.
GatewayPorts no

# X11 tunneling options
X11Forwarding yes
X11DisplayOffset 10
X11UseLocalhost yes

# The maximum number of concurrent unauthenticated connections to sshd.
# start:rate:full see sshd(1) for more information.
# The default is 10 unauthenticated clients.
#MaxStartups 10:30:60

# Banner to be printed before authentication starts.
#Banner /etc/issue

# Should sshd print the /etc/motd file and check for mail.
# On Solaris it is assumed that the login shell will do these (eg /etc/profile).
PrintMotd no

# KeepAlive specifies whether keep alive messages are sent to the client.
# See sshd(1) for detailed description of what this means.
# Note that the client may also be sending keep alive messages to the server.
KeepAlive yes

# Syslog facility and level 
SyslogFacility auth
LogLevel info

#
# Authentication configuration
# 

# Host private key files
# Must be on a local disk and readable only by the root user (root:sys 600).
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key

# Length of the server key
# Default 768, Minimum 512
ServerKeyBits 768

# sshd regenerates the key every KeyRegenerationInterval seconds.
# The key is never stored anywhere except the memory of sshd.
# The default is 1 hour (3600 seconds).
KeyRegenerationInterval 3600

# Ensure secure permissions on users .ssh directory.
StrictModes yes

# Length of time in seconds before a client that hasn't completed
# authentication is disconnected.
# Default is 600 seconds. 0 means no time limit.
LoginGraceTime 600

# Maximum number of retries for authentication
# Default is 6. Default (if unset) for MaxAuthTriesLog is MaxAuthTries / 2
MaxAuthTries	6
MaxAuthTriesLog	3

# Are logins to accounts with empty passwords allowed.
# If PermitEmptyPasswords is no, pass PAM_DISALLOW_NULL_AUTHTOK 
# to pam_authenticate(3PAM).
PermitEmptyPasswords no

# To disable tunneled clear text passwords, change PasswordAuthentication to no.
PasswordAuthentication yes

# Are root logins permitted using sshd.
# Note that sshd uses pam_authenticate(3PAM) so the root (or any other) user
# maybe denied access by a PAM module regardless of this setting.
# Valid options are yes, without-password, no.
PermitRootLogin no

# sftp subsystem
Subsystem	sftp	internal-sftp

# SSH protocol v1 specific options
#
# The following options only apply to the v1 protocol and provide
# some form of backwards compatibility with the very weak security
# of /usr/bin/rsh.  Their use is not recommended and the functionality
# will be removed when support for v1 protocol is removed.

# Should sshd use .rhosts and .shosts for password less authentication.
IgnoreRhosts yes
RhostsAuthentication no

# Rhosts RSA Authentication
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts.
# If the user on the client side is not root then this won't work on
# Solaris since /usr/bin/ssh is not installed setuid.
RhostsRSAAuthentication no

# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication.
#IgnoreUserKnownHosts yes

# Is pure RSA authentication allowed.
# Default is yes
RSAAuthentication yes