16 Mar
2021
16 Mar
'21
11:15 a.m.
Hello,
I cannot open a graphic tool on my Debian TDE,
with a terminal and SSH,
from a remote server, I receive this message :
# xeyes
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0"
Everything is allright with SSH, sshd_config, ssh_config...
I readed many advices from internet sites,
nothing to do, it does'nt work with this eternal message above.
Thanks for a lead.
16 Mar
16 Mar
11:31 a.m.
ajh-valmer wrote:
I cannot open a graphic tool on my Debian TDE,
with a terminal and SSH,
from a remote server, I receive this message :
# xeyes
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0"
$ grep -i X11Forwarding /etc/ssh/sshd_config
X11Forwarding yes
# X11Forwarding no
then when you login ( ssh -X )
export DISPLAY=:10
or
export DISPLAY=localhost:10
if still an issue check what is loclahost in /etc/hosts
11:50 a.m.
On Tuesday 16 March 2021 12:31:22 deloptes wrote:
ajh-valmer wrote:
> I cannot open a graphic tool on my Debian TDE,
> with a terminal and SSH,
> from a remote server, I receive this message :
> # xeyes
> "X11 connection rejected because of wrong authentication.
> Error: Can't open display: localhost:10.0"
Thanks for your help.
$ grep -i X11Forwarding /etc/ssh/sshd_config
X11Forwarding yes :
OK.
then when you login ( ssh -X )
export DISPLAY=:10 or export DISPLAY=localhost:10
It's what I did.
if still an issue check what is loclahost in
/etc/hosts :
cat /etc/hosts (on the remote server) :
127.0.0.1 localhost localhost.localdomain
And always the message :
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0"
11:45 a.m.
Anno domini 2021 Tue, 16 Mar 12:15:30 +0100
ajh-valmer scripsit:
Hello,
I cannot open a graphic tool on my Debian TDE,
with a terminal and SSH,
from a remote server, I receive this message :
# xeyes
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0"
ssh -X user@somwhere
Nik
Everything is allright with SSH, sshd_config, ssh_config...
I readed many advices from internet sites,
nothing to do, it does'nt work with this eternal message above.
Thanks for a lead.
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1:55 p.m.
On Tuesday 16 March 2021 12:45:39 Dr. Nikolaus Klepp wrote:
Anno domini 2021 Tue, 16 Mar 12:15:30 +0100
ajh-valmer scripsit:
> I cannot open a graphic tool on my Debian TDE,
> with a terminal and SSH,
> from a remote server, I receive this message :
> # xeyes
> "X11 connection rejected because of wrong authentication.
> Error: Can't open display: localhost:10.0"
ssh -X user@somwhere :
It's what I do...
"xauth" should be installed on remote
computer :
xauth is installed on the remote computer.
2:59 p.m.
Anno domini 2021 Tue, 16 Mar 14:55:00 +0100
ajh-valmer scripsit:
X11 connection rejected because of wrong
authentication.
Ok. Then try this:
https://unix.stackexchange.com/questions/162979/annoying-message-x11-connec…
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9:40 p.m.
On Tuesday 16 March 2021 15:59:21 Dr. Nikolaus Klepp wrote:
Anno domini 2021 Tue, 16 Mar 14:55:00 +0100
ajh-valmer scripsit:
> X11 connection rejected because of wrong authentication.
Ok. Then try this:
https://unix.stackexchange.com/questions/162979/annoying-message-x11-connec…
Made, and always :
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:11.0"
This problem seems irresolvable for me...
André
11:04 p.m.
ajh-valmer wrote:
Made, and always :
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:11.0"
This problem seems irresolvable for me...
the display is localhost:10.0
unless you connect second time (see X11DisplayOffset)
And you access with :10 (no .0 at the end) short:
~$ export DISPLAY=:10
~$ xeyes
worked always and worked this time as well
Actually I do not even have to export DISPLAY - it is set automatically by
SSH
PS: If you change SSH config, you have to restart sshd and connect again
(ssh -X)
17 Mar
17 Mar
11:50 a.m.
On Wednesday 17 March 2021 00:04:25 deloptes wrote:
ajh-valmer wrote:
Hello,
Thanks for your help.
# export DISPLAY=10
# echo $DISPLAY
10
# xeyes
Error: Can't open display: 10
I'm with ssh -X
sshd_config :
X11DisplayOffset 10
Do I have to install a Xorg on the server ?
# lspci
VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200eW WPCM450
Have a good day,
André
Made, and always :
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:11.0"
This problem seems irresolvable for me...
the display is localhost:10.0
unless you connect second time (see X11DisplayOffset)
And you access with :10 (no .0 at the end) short:
~$ export DISPLAY=:10
~$ xeyes
worked always and worked this time as well
Actually I do not even have to export DISPLAY - it is set automatically by
SSH
PS: If you change SSH config, you have to restart sshd and connect again
(ssh -X)
8:48 p.m.
On Wednesday 17 March 2021 20:06:11 deloptes wrote:
ajh-valmer wrote:
> # export DISPLAY=10
> # echo $DISPLAY
> 10
export DISPLAY=:10
you need some xstuff (xauth for example you need on the client side)
what you also could do is use -v option or -vv or -vvv
Must be written on the SSH server ? :
export DISPLAY=:10
root@association-starinux:~# echo $DISPLAY
:10
# xclock
Error: Can't open display: :10
The DISPLAY is never accepted, whatever the number.
# xauth -v
Using authority file /root/.Xauthority
# xauth>
What am I supposed to write?
Thanks,
André
18 Mar
18 Mar
2:33 a.m.
ajh-valmer wrote:
# xauth -v
Using authority file /root/.Xauthority
# xauth>
What am I supposed to write?
are you logging in as root or normal user and doing su/sudo?
later would explain all of your troubles
it is complicated to login as normal user and run X app as root.
10:03 a.m.
On Thursday 18 March 2021 03:33:55 deloptes wrote:
ajh-valmer wrote:
> # xauth -v
> Using authority file /root/.Xauthority
> # xauth>
> What am I supposed to write?
are you logging in as root or normal user and doing
su/sudo?
later would explain all of your troubles
it is complicated to login as normal user and run X app as root.
Yes, true, difficult Xorg graphic relation between user and root.
From the client SSH, as user, I type :
$ ssh -X -p <port> root@<server-IP>
and I'm connected.
If I type :
$ ssh -X -p <port> normal-user@<server-IP>
I'm connected with this message :
"/etc/ssh/sshrc : line 13 : /etc/ssh/logsshsftp.sh : Permission not granted"
$ xclock
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:2.0"
sniff :-(
Thanks.
8:02 p.m.
ajh-valmer wrote:
Yes, true, difficult Xorg graphic relation between
user and root.
From the client SSH, as user, I type :
$ ssh -X -p <port> root@<server-IP>
and I'm connected.
If I type :
$ ssh -X -p <port> normal-user@<server-IP>
I'm connected with this message :
"/etc/ssh/sshrc : line 13 : /etc/ssh/logsshsftp.sh : Permission not
granted"
$ xclock
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:2.0"
sniff :-(
All of this is crap - what is sshrc and logsshsftp.sh
why localhost:2.0?
try creating a fresh normal user and try with that user. You have to review
this configuration.
11:13 p.m.
On Thu, 18 Mar 2021 21:02:03 +0100
deloptes <deloptes(a)gmail.com> wrote:
ajh-valmer wrote:
/etc/ssh/sshrc is a script that is executed upon ssh login
apparently ajh-valmer has some crap in here that breaks normal ssh -X
functionality
--
Nick Koretsky (nick.koretsky(a)gmail.com)
Yes, true, difficult Xorg graphic relation
between user and root.
From the client SSH, as user, I type :
$ ssh -X -p <port> root@<server-IP>
and I'm connected.
If I type :
$ ssh -X -p <port> normal-user@<server-IP>
I'm connected with this message :
"/etc/ssh/sshrc : line 13 : /etc/ssh/logsshsftp.sh : Permission not
granted"
$ xclock
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:2.0"
sniff :-(
All of this is crap - what is sshrc and logsshsftp.sh
why localhost:2.0?
try creating a fresh normal user and try with that user. You have to
review this configuration.
11:36 p.m.
Nick Koretsky wrote:
/etc/ssh/sshrc is a script that is executed upon ssh
login
apparently ajh-valmer has some crap in here that breaks normal ssh -X
functionality
sounds like Ubuntu crap - for the rest it is not helpful to explain the
obvious, but I can think that it is not obvious for all.
if it's Ubuntu I don't know
19 Mar
19 Mar
2:22 p.m.
On Friday 19 March 2021 00:36:55 deloptes wrote:
Nick Koretsky wrote:
"/etc/ssh/sshrc" and "/etc/ssh/logsshsftp.sh"
are not the problem, they only add the connections,
date, time with SSH : 19-03-2021--10h38m <IP-server>
The problem is elsewhere.
The important questions are :
- Do I have to install a X server on the computer-server SSH ?
- Why the DISPLAY regardless of the number is never accepted ?
Thanks,
André
/etc/ssh/sshrc is a script that is executed upon
ssh login
apparently ajh-valmer has some crap in here that breaks normal ssh -X
functionality
sounds like Ubuntu crap - for the rest it is not helpful to explain
the
obvious, but I can think that it is not obvious for all.
if it's Ubuntu I don't know
8:26 p.m.
ajh.valmer(a)free.fr wrote:
"/etc/ssh/sshrc" and
"/etc/ssh/logsshsftp.sh"
are not the problem, they only add the connections,
date, time with SSH : 19-03-2021--10h38m <IP-server>
The problem is elsewhere.
Seems like - I just tried with a quite clean machine
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Mar 19 21:20:28 2021 from 192.168.40.68
/usr/bin/xauth: file /home/user/.Xauthority does not exis
The important questions are :
- Do I have to install a X server on the computer-server SSH ?
you install what is required to operate the application - dependencies
should tell you what.
# apt-get install x11-apps
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
libice6 libsm6 libxaw7 libxcursor1 libxfixes3 libxft2 libxkbfile1 libxmu6
libxrender1 libxt6 x11-common xbitmaps
- Why the DISPLAY regardless of the number is never
accepted ?
Because we concluded that your setup is broken and you have to repair it.
9:24 p.m.
On Friday 19 March 2021 21:26:30 deloptes wrote:
are installed.
What do you mean by "my setup is broken" ?
(which setup ?).
Cheers,
André
ajh.valmer(a)free.fr wrote:
/usr/bin/xauth: file /home/user/.Xauthority does not exist :
.Xauthority exist
under /root/
Do I have to
install a X server on the computer-server SSH ?
x11-apps, x11-common, xbitmaps :
Why the
DISPLAY regardless of the number is never accepted ? :
Because we concluded that
your setup is broken and you have to repair it.
20 Mar
20 Mar
7:19 a.m.
ajh-valmer wrote:
are installed.
What do you mean by "my setup is broken" ?
(which setup ?).
do ssh -vvv -X root@ ....
and post the output (as attachment, please)
/usr/bin/xauth: file /home/user/.Xauthority does not exist :
.Xauthority exist
under /root/
Do I have
to install a X server on the computer-server SSH ?
x11-apps, x11-common, xbitmaps :
Why the
DISPLAY regardless of the number is never accepted ? :
Because we concluded that
your setup is broken and you have to repair it.
2:31 p.m.
On Saturday 20 March 2021 08:19:32 deloptes wrote:
> What do you mean by "my setup is
broken" ?
> (which setup ?).
do ssh -vvv -X root@ ....
and post the output (as attachment, please)
Hello,
Here joint.
ssh -p <port> -v -X root@<IP-server>
Three v gives too much informations.
Cheers
André
2:55 p.m.
Hi!
Anno domini 2021 Sat, 20 Mar 15:31:02 +0100
ajh-valmer scripsit:
On Saturday 20 March 2021 08:19:32 deloptes wrote:
Tis is the version where X11 forwarding works or where it does not work?
Nik
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> What do you mean by "my setup is
broken" ?
> (which setup ?).
do ssh -vvv -X root@ ....
and post the output (as attachment, please)
Hello,
Here joint.
ssh -p <port> -v -X root@<IP-server>
Three v gives too much informations.
Cheers
André
6:04 p.m.
On Saturday 20 March 2021 15:55:32 Dr. Nikolaus Klepp wrote:
> ssh -p <port> -v -X root@<IP-server>
> Three verbose gives too much informations.
Tis is the version where X11 forwarding works or where
it does not work?
One or two or three -v "verbose" doesn't give informations
about X11 forwarding.
André
8:04 p.m.
Anno domini 2021 Sat, 20 Mar 19:04:02 +0100
ajh-valmer scripsit:
On Saturday 20 March 2021 15:55:32 Dr. Nikolaus Klepp
wrote:
Please attach a logfile that you get from a session where X11 forwarding does not work and
one where it does work. You'll need to include the output from the (not) working X11
client, too. e.g.:
ssh -v -X user@server xmessage xxx
Nik
> ssh -p <port> -v -X
root@<IP-server>
> Three verbose gives too much informations.
Tis is the version where X11 forwarding works or
where it does not work?
One or two or three -v "verbose" doesn't give informations
about X11 forwarding.
André
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10:08 p.m.
On Saturday 20 March 2021 21:04:11 Dr. Nikolaus Klepp wrote:
Please attach a logfile that you get from a session
where X11 forwarding
does not work and one where it does work. You'll need to
include the output
from the (not) working X11 client, too. e.g.:
ssh -v -X root@server xmessage xxx
ssh -p <port> -v -X root@<IP-server> xmessage test
debug1: /etc/ssh/ssh_config line 18: Applying options for *
debug1: Connecting to IP [IP] port <number>
debug1: Connection established.
debug1: Sending command: xmessage test
debug1: client_input_channel_open: ctype x11 rchan 4 win 65536 max 16384
debug1: client_request_x11: request from 127.0.0.1 37832
debug1: channel 1: new [x11]
debug1: confirm x11
X11 connection rejected because of wrong authentication.
debug1: channel 1: free: x11, nchannels 2
Error: Can't open display: localhost:2.0
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow(a)openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2964, received 2920 bytes, in 0.4 seconds
Bytes per second: sent 6874.4, received 6772.4
debug1: Exit status 1
10:21 p.m.
Anno domini 2021 Sat, 20 Mar 23:08:36 +0100
ajh-valmer scripsit:
[...]
Error: Can't open display: localhost:2.0
Ok, with that user please try:
ssh -X user|server "DISPLAY=:10 xmessage xxx"
debug1: client_input_channel_req: channel 0 rtype
exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow(a)openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2964, received 2920 bytes, in 0.4 seconds
Bytes per second: sent 6874.4, received 6772.4
debug1: Exit status 1
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10:22 p.m.
Anno domini 2021 Sat, 20 Mar 23:08:36 +0100
ajh-valmer scripsit:
[...]
Error: Can't open display: localhost:2.0
Ok, with that user please try:
ssh -X user@server "DISPLAY=:10 xmessage xxx"
debug1: client_input_channel_req: channel 0 rtype
exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow(a)openssh.com reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2964, received 2920 bytes, in 0.4 seconds
Bytes per second: sent 6874.4, received 6772.4
debug1: Exit status 1
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21 Mar
21 Mar
1:43 a.m.
ajh-valmer wrote:
On Saturday 20 March 2021 23:22:33 Dr. Nikolaus Klepp
wrote:
based on your previous input your problem is:
X11 connection rejected because of wrong authentication.
not clear what exactly is wrong, but there are numerous threads with this
for example
https://superuser.com/questions/805725/how-do-i-debug-x11-connection-reject…
This is also strange - load > 8.0
debug1: client_input_global_request: rtype
hostkeys-00(a)openssh.com want_reply 0
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: Requesting authentication agent forwarding.
debug1: Sending environment.
debug1: Sending env LANG = fr_FR@euro
Welcome to Ubuntu 18.04.5 LTS (GNU/Linux 4.15.0-136-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information disabled due to load higher than 8.0
0 paquet peut etre mis à jour.
0 of these updates are security updates.
New release '20.04.2 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
No mail.
Ok, with that user please try:
ssh -X user@server "DISPLAY=:10 xmessage xxx"
Error: Can't open display: :10
16 Mar
16 Mar
11:46 a.m.
Oh, I forgot: "xauth" should be installed on remote computer.
Anno domini 2021 Tue, 16 Mar 12:15:30 +0100
ajh-valmer scripsit:
Hello,
I cannot open a graphic tool on my Debian TDE,
with a terminal and SSH,
from a remote server, I receive this message :
# xeyes
"X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0"
Everything is allright with SSH, sshd_config, ssh_config...
I readed many advices from internet sites,
nothing to do, it does'nt work with this eternal message above.
Thanks for a lead.
____________________________________________________
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1138
days inactive
1143
days old
29 comments
5 participants
participants (5)
-
ajh-valmer -
ajh.valmer＠free.fr
-
deloptes -
Dr. Nikolaus Klepp -
Nick Koretsky