Cannot forward XWindows through ssh in AIX 5.3. - Aix

This is a discussion on Cannot forward XWindows through ssh in AIX 5.3. - Aix ; I am having a bloody hard time popping a Xwindows from a AIX 5.3 box in my ubuntu box (through ssh). At first I thought it was the sshd-config file. I did setup the X11Forwarding line to yes and restarted ...

+ Reply to Thread
Results 1 to 17 of 17

Thread: Cannot forward XWindows through ssh in AIX 5.3.

  1. Cannot forward XWindows through ssh in AIX 5.3.

    I am having a bloody hard time popping a Xwindows from a AIX
    5.3 box in my ubuntu box (through ssh). At first I thought it was the
    sshd-config file. I did setup the X11Forwarding line to yes and
    restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    sshd", but it seems not to have done the trick. Here is some output
    from a ssh -vvvX raub@AIXBox:

    debug3: remaining preferred: ,password
    debug3: authmethod_is_enabled password
    debug1: Next authentication method: password
    vendor1@aixblade's password:
    debug3: packet_send2: adding 64 (len 59 padlen 5 extra_pad 64)
    debug2: we sent a password packet, wait for reply
    debug1: Authentication succeeded (password).
    debug1: channel 0: new [client-session]
    debug3: ssh_session2_open: channel_new: 0
    debug2: channel 0: send open
    debug1: Entering interactive session.
    debug2: callback start
    debug2: x11_get_proto: /usr/bin/X11/xauth list :0.0 2>/dev/null
    debug1: Requesting X11 forwarding with authentication spoofing.
    debug2: channel 0: request x11-req confirm 0
    debug2: client_session2_setup: id 0
    debug2: channel 0: request pty-req confirm 0
    debug3: tty_make_modes: ospeed 38400
    debug3: tty_make_modes: ispeed 38400
    debug3: tty_make_modes: 1 3
    debug3: tty_make_modes: 2 28
    [...]
    debug1: Sending environment.
    debug3: Ignored env SSH_AGENT_PID
    debug3: Ignored env SHELL
    debug3: Ignored env DESKTOP_STARTUP_ID
    debug3: Ignored env TERM
    debug3: Ignored env GTK_RC_FILES
    debug3: Ignored env WINDOWID
    debug3: Ignored env USER
    debug3: Ignored env LS_COLORS
    debug3: Ignored env SSH_AUTH_SOCK
    debug3: Ignored env GNOME_KEYRING_SOCKET
    debug3: Ignored env SESSION_MANAGER
    debug3: Ignored env USERNAME
    debug3: Ignored env PATH
    debug3: Ignored env DESKTOP_SESSION
    debug3: Ignored env GDM_XSERVER_LOCATION
    debug3: Ignored env PWD
    debug1: Sending env LANG = en_US.UTF-8
    debug2: channel 0: request env confirm 0
    debug3: Ignored env GDMSESSION
    debug3: Ignored env HISTCONTROL
    debug3: Ignored env SHLVL
    debug3: Ignored env HOME
    debug3: Ignored env GTK_RC_FILES
    debug3: Ignored env WINDOWID
    debug3: Ignored env USER
    debug3: Ignored env LS_COLORS
    debug3: Ignored env SSH_AUTH_SOCK
    debug3: Ignored env GNOME_KEYRING_SOCKET
    debug3: Ignored env SESSION_MANAGER
    debug3: Ignored env USERNAME
    debug3: Ignored env PATH
    debug3: Ignored env DESKTOP_SESSION
    debug3: Ignored env GDM_XSERVER_LOCATION
    debug3: Ignored env PWD
    debug1: Sending env LANG = en_US.UTF-8
    debug2: channel 0: request env confirm 0
    debug3: Ignored env GDMSESSION
    debug3: Ignored env HISTCONTROL
    debug3: Ignored env SHLVL
    debug3: Ignored env HOME
    debug3: Ignored env LANGUAGE
    debug3: Ignored env GNOME_DESKTOP_SESSION_ID
    debug3: Ignored env LOGNAME
    debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
    debug3: Ignored env LESSOPEN
    debug3: Ignored env DISPLAY
    debug3: Ignored env LESSCLOSE
    debug3: Ignored env COLORTERM
    debug3: Ignored env XAUTHORITY
    debug3: Ignored env _
    debug2: channel 0: request shell confirm 0
    debug2: fd 3 setting TCP_NODELAY
    debug2: callback done
    debug2: channel 0: open confirm rwindow 0 rmax 32768
    debug1: Remote: No xauth program; cannot forward with spoofing.
    debug2: channel 0: rcvd adjust 131072
    Last unsuccessful login: Mon Jul 23 11:49:20 CDT 2007 on ssh from
    159.178.3.252
    Last login: Mon Jul 23 12:59:52 CDT 2007 on /dev/pts/0 from
    159.178.3.43
    ************************************************** *****************************
    *
    *
    *
    *
    * Welcome to AIX Version
    5.3! *
    *
    *
    *
    *
    * Please see the README file in /usr/lpp/bos for information
    pertinent to *
    * this release of the AIX Operating
    System. *
    *
    *
    *
    *
    ************************************************** *****************************
    $

    Any suggestions? Anyway to see if the sshd has seen my change? FYI,
    I do not
    have a DISPLAY defined by ssh.


  2. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 24, 8:09 am, Mauricio wrote:
    > I am having a bloody hard time popping a Xwindows from a AIX
    > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    > sshd-config file. I did setup the X11Forwarding line to yes and
    > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    > sshd", but it seems not to have done the trick. Here is some output
    > from a ssh -vvvX raub@AIXBox:
    >
    > debug3: remaining preferred: ,password
    > debug3: authmethod_is_enabled password
    > debug1: Next authentication method: password
    > vendor1@aixblade's password:
    > debug3: packet_send2: adding 64 (len 59 padlen 5 extra_pad 64)
    > debug2: we sent a password packet, wait for reply
    > debug1: Authentication succeeded (password).
    > debug1: channel 0: new [client-session]
    > debug3: ssh_session2_open: channel_new: 0
    > debug2: channel 0: send open
    > debug1: Entering interactive session.
    > debug2: callback start
    > debug2: x11_get_proto: /usr/bin/X11/xauth list :0.0 2>/dev/null
    > debug1: Requesting X11 forwarding with authentication spoofing.
    > debug2: channel 0: request x11-req confirm 0
    > debug2: client_session2_setup: id 0
    > debug2: channel 0: request pty-req confirm 0
    > debug3: tty_make_modes: ospeed 38400
    > debug3: tty_make_modes: ispeed 38400
    > debug3: tty_make_modes: 1 3
    > debug3: tty_make_modes: 2 28
    > [...]
    > debug1: Sending environment.
    > debug3: Ignored env SSH_AGENT_PID
    > debug3: Ignored env SHELL
    > debug3: Ignored env DESKTOP_STARTUP_ID
    > debug3: Ignored env TERM
    > debug3: Ignored env GTK_RC_FILES
    > debug3: Ignored env WINDOWID
    > debug3: Ignored env USER
    > debug3: Ignored env LS_COLORS
    > debug3: Ignored env SSH_AUTH_SOCK
    > debug3: Ignored env GNOME_KEYRING_SOCKET
    > debug3: Ignored env SESSION_MANAGER
    > debug3: Ignored env USERNAME
    > debug3: Ignored env PATH
    > debug3: Ignored env DESKTOP_SESSION
    > debug3: Ignored env GDM_XSERVER_LOCATION
    > debug3: Ignored env PWD
    > debug1: Sending env LANG = en_US.UTF-8
    > debug2: channel 0: request env confirm 0
    > debug3: Ignored env GDMSESSION
    > debug3: Ignored env HISTCONTROL
    > debug3: Ignored env SHLVL
    > debug3: Ignored env HOME
    > debug3: Ignored env GTK_RC_FILES
    > debug3: Ignored env WINDOWID
    > debug3: Ignored env USER
    > debug3: Ignored env LS_COLORS
    > debug3: Ignored env SSH_AUTH_SOCK
    > debug3: Ignored env GNOME_KEYRING_SOCKET
    > debug3: Ignored env SESSION_MANAGER
    > debug3: Ignored env USERNAME
    > debug3: Ignored env PATH
    > debug3: Ignored env DESKTOP_SESSION
    > debug3: Ignored env GDM_XSERVER_LOCATION
    > debug3: Ignored env PWD
    > debug1: Sending env LANG = en_US.UTF-8
    > debug2: channel 0: request env confirm 0
    > debug3: Ignored env GDMSESSION
    > debug3: Ignored env HISTCONTROL
    > debug3: Ignored env SHLVL
    > debug3: Ignored env HOME
    > debug3: Ignored env LANGUAGE
    > debug3: Ignored env GNOME_DESKTOP_SESSION_ID
    > debug3: Ignored env LOGNAME
    > debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
    > debug3: Ignored env LESSOPEN
    > debug3: Ignored env DISPLAY
    > debug3: Ignored env LESSCLOSE
    > debug3: Ignored env COLORTERM
    > debug3: Ignored env XAUTHORITY
    > debug3: Ignored env _
    > debug2: channel 0: request shell confirm 0
    > debug2: fd 3 setting TCP_NODELAY
    > debug2: callback done
    > debug2: channel 0: open confirm rwindow 0 rmax 32768
    > debug1: Remote: No xauth program; cannot forward with spoofing.
    > debug2: channel 0: rcvd adjust 131072
    > Last unsuccessful login: Mon Jul 23 11:49:20 CDT 2007 on ssh from
    > 159.178.3.252
    > Last login: Mon Jul 23 12:59:52 CDT 2007 on /dev/pts/0 from
    > 159.178.3.43
    > ************************************************** *****************************
    > *
    > *
    > *
    > *
    > * Welcome to AIX Version
    > 5.3! *
    > *
    > *
    > *
    > *
    > * Please see the README file in /usr/lpp/bos for information
    > pertinent to *
    > * this release of the AIX Operating
    > System. *
    > *
    > *
    > *
    > *
    > ************************************************** *****************************
    > $
    >
    > Any suggestions? Anyway to see if the sshd has seen my change? FYI,
    > I do not
    > have a DISPLAY defined by ssh.


    I hate SSH/Xwindows, I always seem to have trouble with it too.
    Besides the kill -HUP of the SSHD and "xhost +" do you have a
    ls -log .X*
    -rw------- 1 52 24 Jul 08:51 .Xauthority
    file?
    what's the output of the "set" command look like ?
    besides the DISPLAY variable being set by "ssh -X" there should be
    SSH_CLIENT='10.130.17.192 4904 22'
    SSH_CONNECTION='10.130.17.192 4904 172.16.40.70 22'

    here's the uncommented rows in my sshd (which is working ok)
    egrep -v "^$|^#" /etc/ssh/sshd_config
    Protocol 2
    PermitRootLogin no
    X11Forwarding yes
    Subsystem sftp /usr/sbin/sftp-server

    I assume you're got other XWindows clients working ok ?
    I wonder what this line (above) means ?
    debug1: Requesting X11 forwarding with authentication spoofing.


  3. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 24, 8:09 am, Mauricio wrote:
    > I am having a bloody hard time popping a Xwindows from a AIX
    > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    > sshd-config file. I did setup the X11Forwarding line to yes and
    > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    > sshd", but it seems not to have done the trick. Here is some output
    > from a ssh -vvvX raub@AIXBox:
    >
    > debug3: remaining preferred: ,password
    > debug3: authmethod_is_enabled password
    > debug1: Next authentication method: password
    > vendor1@aixblade's password:
    > debug3: packet_send2: adding 64 (len 59 padlen 5 extra_pad 64)
    > debug2: we sent a password packet, wait for reply
    > debug1: Authentication succeeded (password).
    > debug1: channel 0: new [client-session]
    > debug3: ssh_session2_open: channel_new: 0
    > debug2: channel 0: send open
    > debug1: Entering interactive session.
    > debug2: callback start
    > debug2: x11_get_proto: /usr/bin/X11/xauth list :0.0 2>/dev/null
    > debug1: Requesting X11 forwarding with authentication spoofing.
    > debug2: channel 0: request x11-req confirm 0
    > debug2: client_session2_setup: id 0
    > debug2: channel 0: request pty-req confirm 0
    > debug3: tty_make_modes: ospeed 38400
    > debug3: tty_make_modes: ispeed 38400
    > debug3: tty_make_modes: 1 3
    > debug3: tty_make_modes: 2 28
    > [...]
    > debug1: Sending environment.
    > debug3: Ignored env SSH_AGENT_PID
    > debug3: Ignored env SHELL
    > debug3: Ignored env DESKTOP_STARTUP_ID
    > debug3: Ignored env TERM
    > debug3: Ignored env GTK_RC_FILES
    > debug3: Ignored env WINDOWID
    > debug3: Ignored env USER
    > debug3: Ignored env LS_COLORS
    > debug3: Ignored env SSH_AUTH_SOCK
    > debug3: Ignored env GNOME_KEYRING_SOCKET
    > debug3: Ignored env SESSION_MANAGER
    > debug3: Ignored env USERNAME
    > debug3: Ignored env PATH
    > debug3: Ignored env DESKTOP_SESSION
    > debug3: Ignored env GDM_XSERVER_LOCATION
    > debug3: Ignored env PWD
    > debug1: Sending env LANG = en_US.UTF-8
    > debug2: channel 0: request env confirm 0
    > debug3: Ignored env GDMSESSION
    > debug3: Ignored env HISTCONTROL
    > debug3: Ignored env SHLVL
    > debug3: Ignored env HOME
    > debug3: Ignored env GTK_RC_FILES
    > debug3: Ignored env WINDOWID
    > debug3: Ignored env USER
    > debug3: Ignored env LS_COLORS
    > debug3: Ignored env SSH_AUTH_SOCK
    > debug3: Ignored env GNOME_KEYRING_SOCKET
    > debug3: Ignored env SESSION_MANAGER
    > debug3: Ignored env USERNAME
    > debug3: Ignored env PATH
    > debug3: Ignored env DESKTOP_SESSION
    > debug3: Ignored env GDM_XSERVER_LOCATION
    > debug3: Ignored env PWD
    > debug1: Sending env LANG = en_US.UTF-8
    > debug2: channel 0: request env confirm 0
    > debug3: Ignored env GDMSESSION
    > debug3: Ignored env HISTCONTROL
    > debug3: Ignored env SHLVL
    > debug3: Ignored env HOME
    > debug3: Ignored env LANGUAGE
    > debug3: Ignored env GNOME_DESKTOP_SESSION_ID
    > debug3: Ignored env LOGNAME
    > debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
    > debug3: Ignored env LESSOPEN
    > debug3: Ignored env DISPLAY
    > debug3: Ignored env LESSCLOSE
    > debug3: Ignored env COLORTERM
    > debug3: Ignored env XAUTHORITY
    > debug3: Ignored env _
    > debug2: channel 0: request shell confirm 0
    > debug2: fd 3 setting TCP_NODELAY
    > debug2: callback done
    > debug2: channel 0: open confirm rwindow 0 rmax 32768
    > debug1: Remote: No xauth program; cannot forward with spoofing.
    > debug2: channel 0: rcvd adjust 131072
    > Last unsuccessful login: Mon Jul 23 11:49:20 CDT 2007 on ssh from
    > 159.178.3.252
    > Last login: Mon Jul 23 12:59:52 CDT 2007 on /dev/pts/0 from
    > 159.178.3.43
    > ************************************************** *****************************
    > *
    > *
    > *
    > *
    > * Welcome to AIX Version
    > 5.3! *
    > *
    > *
    > *
    > *
    > * Please see the README file in /usr/lpp/bos for information
    > pertinent to *
    > * this release of the AIX Operating
    > System. *
    > *
    > *
    > *
    > *
    > ************************************************** *****************************
    > $
    >
    > Any suggestions? Anyway to see if the sshd has seen my change? FYI,
    > I do not
    > have a DISPLAY defined by ssh.

    see here
    http://taosecurity.blogspot.com/2006...is-one-of.html


  4. Re: Cannot forward XWindows through ssh in AIX 5.3.


    Are you running ssh server that comes with AIX?
    I had problems with it, and I compiled OpenSSH on my system.

    Try using "ssh -Y" instead of "ssh -X".

    While stranded on information super highway Mauricio wrote:
    > I am having a bloody hard time popping a Xwindows from a AIX
    > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    > sshd-config file. I did setup the X11Forwarding line to yes and
    > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    > sshd", but it seems not to have done the trick. Here is some output
    > from a ssh -vvvX raub@AIXBox:
    >
    > debug3: remaining preferred: ,password
    > debug3: authmethod_is_enabled password
    > debug1: Next authentication method: password
    > vendor1@aixblade's password:
    > debug3: packet_send2: adding 64 (len 59 padlen 5 extra_pad 64)
    > debug2: we sent a password packet, wait for reply
    > debug1: Authentication succeeded (password).
    > debug1: channel 0: new [client-session]
    > debug3: ssh_session2_open: channel_new: 0
    > debug2: channel 0: send open
    > debug1: Entering interactive session.
    > debug2: callback start
    > debug2: x11_get_proto: /usr/bin/X11/xauth list :0.0 2>/dev/null
    > debug1: Requesting X11 forwarding with authentication spoofing.
    > debug2: channel 0: request x11-req confirm 0
    > debug2: client_session2_setup: id 0
    > debug2: channel 0: request pty-req confirm 0
    > debug3: tty_make_modes: ospeed 38400
    > debug3: tty_make_modes: ispeed 38400
    > debug3: tty_make_modes: 1 3
    > debug3: tty_make_modes: 2 28
    > [...]
    > debug1: Sending environment.
    > debug3: Ignored env SSH_AGENT_PID
    > debug3: Ignored env SHELL
    > debug3: Ignored env DESKTOP_STARTUP_ID
    > debug3: Ignored env TERM
    > debug3: Ignored env GTK_RC_FILES
    > debug3: Ignored env WINDOWID
    > debug3: Ignored env USER
    > debug3: Ignored env LS_COLORS
    > debug3: Ignored env SSH_AUTH_SOCK
    > debug3: Ignored env GNOME_KEYRING_SOCKET
    > debug3: Ignored env SESSION_MANAGER
    > debug3: Ignored env USERNAME
    > debug3: Ignored env PATH
    > debug3: Ignored env DESKTOP_SESSION
    > debug3: Ignored env GDM_XSERVER_LOCATION
    > debug3: Ignored env PWD
    > debug1: Sending env LANG = en_US.UTF-8
    > debug2: channel 0: request env confirm 0
    > debug3: Ignored env GDMSESSION
    > debug3: Ignored env HISTCONTROL
    > debug3: Ignored env SHLVL
    > debug3: Ignored env HOME
    > debug3: Ignored env GTK_RC_FILES
    > debug3: Ignored env WINDOWID
    > debug3: Ignored env USER
    > debug3: Ignored env LS_COLORS
    > debug3: Ignored env SSH_AUTH_SOCK
    > debug3: Ignored env GNOME_KEYRING_SOCKET
    > debug3: Ignored env SESSION_MANAGER
    > debug3: Ignored env USERNAME
    > debug3: Ignored env PATH
    > debug3: Ignored env DESKTOP_SESSION
    > debug3: Ignored env GDM_XSERVER_LOCATION
    > debug3: Ignored env PWD
    > debug1: Sending env LANG = en_US.UTF-8
    > debug2: channel 0: request env confirm 0
    > debug3: Ignored env GDMSESSION
    > debug3: Ignored env HISTCONTROL
    > debug3: Ignored env SHLVL
    > debug3: Ignored env HOME
    > debug3: Ignored env LANGUAGE
    > debug3: Ignored env GNOME_DESKTOP_SESSION_ID
    > debug3: Ignored env LOGNAME
    > debug3: Ignored env DBUS_SESSION_BUS_ADDRESS
    > debug3: Ignored env LESSOPEN
    > debug3: Ignored env DISPLAY
    > debug3: Ignored env LESSCLOSE
    > debug3: Ignored env COLORTERM
    > debug3: Ignored env XAUTHORITY
    > debug3: Ignored env _
    > debug2: channel 0: request shell confirm 0
    > debug2: fd 3 setting TCP_NODELAY
    > debug2: callback done
    > debug2: channel 0: open confirm rwindow 0 rmax 32768
    > debug1: Remote: No xauth program; cannot forward with spoofing.
    > debug2: channel 0: rcvd adjust 131072
    > Last unsuccessful login: Mon Jul 23 11:49:20 CDT 2007 on ssh from
    > 159.178.3.252
    > Last login: Mon Jul 23 12:59:52 CDT 2007 on /dev/pts/0 from
    > 159.178.3.43
    > ************************************************** *****************************
    > *
    > *
    > *
    > *
    > * Welcome to AIX Version
    > 5.3! *
    > *
    > *
    > *
    > *
    > * Please see the README file in /usr/lpp/bos for information
    > pertinent to *
    > * this release of the AIX Operating
    > System. *
    > *
    > *
    > *
    > *
    > ************************************************** *****************************
    > $
    >
    > Any suggestions? Anyway to see if the sshd has seen my change? FYI,
    > I do not
    > have a DISPLAY defined by ssh.
    >


    --
    Hemant Shah /"\ ASCII ribbon campaign
    E-mail: NoJunkMailshah@xnet.com \ / ---------------------
    X against HTML mail
    TO REPLY, REMOVE NoJunkMail / \ and postings
    FROM MY E-MAIL ADDRESS.
    -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
    I haven't lost my mind, Above opinions are mine only.
    it's backed up on tape somewhere. Others can have their own.

  5. Re: Cannot forward XWindows through ssh in AIX 5.3.

    Mauricio schrieb:
    > I am having a bloody hard time popping a Xwindows from a AIX
    > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    > sshd-config file. I did setup the X11Forwarding line to yes and
    > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    > sshd", but it seems not to have done the trick.


    > Any suggestions? Anyway to see if the sshd has seen my change? FYI,
    > I do not
    > have a DISPLAY defined by ssh.
    >


    On my 5.3 box the /etc/ssh/sshd_config has:

    XAuthLocation /usr/bin/X11/xauth
    X11Forwarding yes

    on the clients /etc/ssh/ssh_config has:

    ForwardX11 yes
    ForwardX11Trusted yes

    With this setup I can tunnel X11 windows from
    AIX 5.3 => AIX 5.2 => firewall => ISP/DSL => Mac OS X @ home
    with a simple "ssh ". The DISPLAY variable
    should not be set explicitly, but should look like "localhost:11.0" or so.

    I use only standard OpenSSH/SSL from the IBM delivered media.


  6. Re: Cannot forward XWindows through ssh in AIX 5.3.

    Mauricio writes:

    > I am having a bloody hard time popping a Xwindows from a AIX
    > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    > sshd-config file. I did setup the X11Forwarding line to yes and
    > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    > sshd", but it seems not to have done the trick. Here is some output
    > from a ssh -vvvX raub@AIXBox:
    >
    > debug3: remaining preferred: ,password
    > debug3: authmethod_is_enabled password




    > debug3: Ignored env DISPLAY


    > debug3: Ignored env LESSCLOSE
    > debug3: Ignored env COLORTERM
    > debug3: Ignored env XAUTHORITY
    > debug3: Ignored env _
    > debug2: channel 0: request shell confirm 0
    > debug2: fd 3 setting TCP_NODELAY
    > debug2: callback done
    > debug2: channel 0: open confirm rwindow 0 rmax 32768


    This looks to be the problem. You probably didn't install the file set
    that contains xauth.

    > debug1: Remote: No xauth program; cannot forward with spoofing.
    > debug2: channel 0: rcvd adjust 131072





    --
    #include /* I don't speak for IBM ... */
    /* Heck, I don't even speak for myself */
    /* Don't believe me ? Ask my wife :-) */
    Richard D. Latham lathamr@us.ibm.com

  7. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 23, 9:53 pm, lath...@us.ibm.com (Richard D. Latham) wrote:
    > Mauricio writes:
    > > I am having a bloody hard time popping a Xwindows from a AIX
    > > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    > > sshd-config file. I did setup the X11Forwarding line to yes and
    > > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc -s
    > > sshd", but it seems not to have done the trick. Here is some output
    > > from a ssh -vvvX raub@AIXBox:

    >
    > > debug3: remaining preferred: ,password
    > > debug3: authmethod_is_enabled password

    >
    >
    >
    > > debug3: Ignored env DISPLAY
    > > debug3: Ignored env LESSCLOSE
    > > debug3: Ignored env COLORTERM
    > > debug3: Ignored env XAUTHORITY
    > > debug3: Ignored env _
    > > debug2: channel 0: request shell confirm 0
    > > debug2: fd 3 setting TCP_NODELAY
    > > debug2: callback done
    > > debug2: channel 0: open confirm rwindow 0 rmax 32768

    >
    > This looks to be the problem. You probably didn't install the file set
    > that contains xauth.
    >
    > > debug1: Remote: No xauth program; cannot forward with spoofing.
    > > debug2: channel 0: rcvd adjust 131072

    >
    >
    >

    I thought so too, but xauth seems to be around;

    $ which xauth
    /usr/bin/X11/xauth
    $


  8. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 23, 6:34 pm, Hemant Shah wrote:
    > Are you running ssh server that comes with AIX?
    > I had problems with it, and I compiled OpenSSH on my system.
    >


    > Try using "ssh -Y" instead of "ssh -X".
    >



  9. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Tue, 24 Jul 2007 05:53:05 -0700, Mauricio wrote:

    > On Jul 23, 9:53 pm, lath...@us.ibm.com (Richard D. Latham) wrote:
    >> Mauricio writes:
    >> > I am having a bloody hard time popping a Xwindows from a AIX
    >> > 5.3 box in my ubuntu box (through ssh). At first I thought it was the
    >> > sshd-config file. I did setup the X11Forwarding line to yes and
    >> > restarted the sshd (you know, using "stopsrc -s sshd" and "startsrc
    >> > -s sshd", but it seems not to have done the trick. Here is some
    >> > output from a ssh -vvvX raub@AIXBox:

    >>
    >> > debug3: remaining preferred: ,password debug3: authmethod_is_enabled
    >> > password

    >>
    >>
    >>
    >> > debug3: Ignored env DISPLAY
    >> > debug3: Ignored env LESSCLOSE
    >> > debug3: Ignored env COLORTERM
    >> > debug3: Ignored env XAUTHORITY
    >> > debug3: Ignored env _
    >> > debug2: channel 0: request shell confirm 0 debug2: fd 3 setting
    >> > TCP_NODELAY
    >> > debug2: callback done
    >> > debug2: channel 0: open confirm rwindow 0 rmax 32768

    >>
    >> This looks to be the problem. You probably didn't install the file set
    >> that contains xauth.
    >>
    >> > debug1: Remote: No xauth program; cannot forward with spoofing.
    >> > debug2: channel 0: rcvd adjust 131072

    >>
    >>
    >>

    > I thought so too, but xauth seems to be around;
    >
    > $ which xauth
    > /usr/bin/X11/xauth
    > $


    Under later Service Packs, we have found that the system loses 'xauth'.
    I have had to explicitly point the sshd daemons at it via the line:

    XAuthLocation /usr/bin/X11/xauth

    in the /etc/ssh/sshd_config file. Once that is done and sshd is
    restarted, then I can do XForwarding again.

  10. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 24, 10:08 am, "F. Michael Orr" wrote:
    >
    > Under later Service Packs, we have found that the system loses 'xauth'.
    > I have had to explicitly point the sshd daemons at it via the line:
    >
    > XAuthLocation /usr/bin/X11/xauth
    >
    > in the /etc/ssh/sshd_config file. Once that is done and sshd is
    > restarted, then I can do XForwarding again.


    Hmm, I just tried that and this time also restarted sshd by doing /etc/
    rc.d/rc2.d/Ssshd stop/start (just to see if that makes a difference
    compared to "stopsrc -s sshd" and "startsrc -s sshd"). Still no dice.
    =(


  11. Re: Cannot forward XWindows through ssh in AIX 5.3.

    Another interesting update: I have no problems forwarding Xwindows
    applications from my AIX 5.1 box.


  12. Re: Cannot forward XWindows through ssh in AIX 5.3.

    Sorry for the double (or is it triple now?) but we are running openssh
    (old version though but I did not install it):

    [aixblade:/etc/ssh] ssh -V
    OpenSSH_4.3p2, OpenSSL 0.9.7g 11 Apr 2005
    [aixblade:/etc/ssh]

    openssh is also being run in my 5.1 box, though even older:

    $ ssh -V
    OpenSSH_2.9.9p2, SSH protocols 1.5/2.0, OpenSSL 0x0090602f
    $


  13. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Wed, 25 Jul 2007 10:32:28 -0700, Mauricio wrote:

    > Sorry for the double (or is it triple now?) but we are running openssh
    > (old version though but I did not install it):
    >
    > [aixblade:/etc/ssh] ssh -V
    > OpenSSH_4.3p2, OpenSSL 0.9.7g 11 Apr 2005 [aixblade:/etc/ssh]
    >
    > openssh is also being run in my 5.1 box, though even older:
    >
    > $ ssh -V
    > OpenSSH_2.9.9p2, SSH protocols 1.5/2.0, OpenSSL 0x0090602f $


    4.3p2 is the version we run under 5.3, TL5, SP6.

    When you cycle ssh, make explicitly sure it comes down 100%. For
    example, I cannot run 'refresh -s sshd'. I have to explicitly 'stopsrc -
    s sshd' and 'startsrc -s sshd'.

    Also, if the problem persists, connect from the client with 'ssh -vvv'.
    It is mostly gibberish, but sometimes it gives you an important clue as
    to what the problem is.

  14. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 25, 6:41 am, Mauricio wrote:
    > On Jul 24, 10:08 am, "F. Michael Orr" wrote:
    >
    >
    >
    > > Under later Service Packs, we have found that the system loses 'xauth'.
    > > I have had to explicitly point the sshd daemons at it via the line:

    >
    > > XAuthLocation /usr/bin/X11/xauth

    >
    > > in the /etc/ssh/sshd_config file. Once that is done and sshd is
    > > restarted, then I can do XForwarding again.

    >
    > Hmm, I just tried that and this time also restarted sshd by doing /etc/
    > rc.d/rc2.d/Ssshd stop/start (just to see if that makes a difference
    > compared to "stopsrc -s sshd" and "startsrc -s sshd"). Still no dice.
    > =(

    does this file exist ?
    /usr/bin/X11/xauth
    I'm a bit confused by null output from
    lslpp -w /usr/bin/X11/xauth


  15. Re: Cannot forward XWindows through ssh in AIX 5.3.

    On Jul 26, 5:32 am, Mauricio wrote:
    > Sorry for the double (or is it triple now?) but we are running openssh
    > (old version though but I did not install it):
    >
    > [aixblade:/etc/ssh] ssh -V
    > OpenSSH_4.3p2, OpenSSL 0.9.7g 11 Apr 2005
    > [aixblade:/etc/ssh]
    >
    > openssh is also being run in my 5.1 box, though even older:
    >
    > $ ssh -V
    > OpenSSH_2.9.9p2, SSH protocols 1.5/2.0, OpenSSL 0x0090602f
    > $


    what does this show for you ?

    lslpp -l X11.apps.config
    Fileset Level State Description

    ----------------------------------------------------------------------------
    Path: /usr/lib/objrepos
    X11.apps.config 5.3.0.40 COMMITTED AIXwindows
    Configuration
    Applications


  16. Re: Cannot forward XWindows through ssh in AIX 5.3.

    ....
    > I'm a bit confused by null output from
    > lslpp -w /usr/bin/X11/xauth


    /usr/bin/X11 is a link to /usr/lpp/X11/bin/

    $ lslpp -w \*xauth
    ....
    /usr/lpp/X11/bin/xauth X11.apps.config

    hth
    Hajo





  17. Re: Cannot forward XWindows through ssh in AIX 5.3.

    I had the problem with just ONE customer. I simply reinstalled SSH not
    using sshd included in the Linux Toolbox. I downloaded a new copy from
    the IBM site.


+ Reply to Thread