* bug#23960: lshd: X11 forwarding request failed on channel 0
@ 2016-07-12 20:46 myglc2
2016-07-12 20:53 ` myglc2
0 siblings, 1 reply; 2+ messages in thread
From: myglc2 @ 2016-07-12 20:46 UTC (permalink / raw)
To: 23960
[-- Attachment #1: Type: text/plain, Size: 4240 bytes --]
From 'Re: guixSD - problem with X11 forwarding' in help-guix@gnu.org
myglc2 <myglc2@gmail.com> writes:
> ludo@gnu.org (Ludovic Courtès) writes:
>
>> myglc2 <myglc2@gmail.com> skribis:
>>
>>> On guixSD, with no packages installed in the login user profile, I get
>>> 'X11 forwarding request failed on channel 0'
>>
>> [...]
>>
>>> debug1: channel 0: new [client-session]
>>> debug1: Entering interactive session.
>>> debug1: Requesting X11 forwarding with authentication spoofing.
>>> debug1: Sending environment.
>>> debug1: Sending env LANG = en_US.UTF-8
>>> X11 forwarding request failed on channel 0
>>
>> Right, I see that as well.
>>
>> lshd gives some clues in /var/log/messages:
>>
>> Feb 23 18:14:09 localhost lshd[430]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>> Feb 23 18:14:09 localhost lshd[430]: lshd: xauth invocation failed: exit code: 127
>> Feb 23 18:14:33 localhost lshd[430]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
>> Feb 23 18:14:33 localhost lshd[430]: lshd: write_buffer: Attempt to write data to closed buffer.
>> Feb 23 18:14:33 localhost lshd[430]: lshd: Disconnect for reason 11: disconnected by user
>>
>> Indeed, server_x11.c in lsh reads:
>>
>> #ifndef XAUTH_PROGRAM
>> # define XAUTH_PROGRAM "/usr/X11R6/bin/xauth"
>> #endif
>>
>> I believe this is fixed by commit da35acf.
>>
>> To give it a try, you can run (as root):
>>
>> # guix pull
>> # herd stop ssh-daemon
>> # guix system reconfigure your-config.scm
>
> I tried the above. 'ssh -v ...' still produces results quoted above and
> I see in /var/log/messages:
>
> Feb 29 20:43:54 localhost lshd[6959]: lshd: Failed to cd to `/tmp/.X11-unix' (errno = 2): No such file or directory
> Feb 29 20:43:54 localhost lshd[6959]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
> Feb 29 20:45:35 localhost lshd[6959]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
> Feb 29 20:45:35 localhost lshd[6959]: lshd: write_buffer: Attempt to write data to closed buffer.
> Feb 29 20:45:35 localhost lshd[6959]: lshd: Disconnect for reason 11: disconnected by user
> Feb 29 20:45:47 localhost lshd[6959]: lshd: Failed to cd to `/tmp/.X11-unix' (errno = 2): No such file or directory
> Feb 29 20:45:47 localhost lshd[6959]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>
> I tried 'sudo mkdir /tmp/.X11-unix' which changed /var/log/messages to:
>
> Feb 29 20:54:04 localhost lshd[6959]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
> Feb 29 20:54:09 localhost lshd[6959]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
> Feb 29 20:54:09 localhost lshd[6959]: lshd: write_buffer: Attempt to write data to closed buffer.
> Feb 29 20:54:09 localhost lshd[6959]: lshd: Disconnect for reason 11: disconnected by user
>
> and 'ssh -v ...' still produces the results quoted above.
Don't think this is fixed yet. ssh in to GuixSD gives ...
'X11 forwarding request failed on channel 0'
... and on GuixSD in /var/log/messages I see ...
Jul 12 16:25:42 localhost lshd[384]: lshd: Failed to cd to `/tmp/.X11-unix' (errno = 2): No such file or directory
Jul 12 16:25:42 localhost lshd[384]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
... or after ...
sudo mkdir /tmp/.X11-unix
... I see ...
Jul 12 16:21:53 localhost lshd[384]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
Jul 12 16:21:53 localhost lshd[384]: lshd: write_buffer: Attempt to write data to closed buffer.
Jul 12 16:21:53 localhost lshd[384]: lshd: Disconnect for reason 11: disconnected by user
Jul 12 16:22:00 localhost lshd[384]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
I am running from a git checkout ...
g1@g1 ~/src/guix$ git branch -av | grep '* master'
* master 0885881 gnu: obs: Remove compiler flags for non-Intel hardware.
g1@g1 ~/src/guix$ stat /home/g1/.config/guix/latest | grep File:
File: ‘/home/g1/.config/guix/latest’ -> ‘../../src/guix’
system and user configs attached. TIA - George
[-- Attachment #2: g1.scm --]
[-- Type: application/octet-stream, Size: 617 bytes --]
(use-package-modules
aspell
gettext
ghostscript ;; gs-fonts
fonts ;; font-dejavu font-gnu-freefont-ttf
base
ssh rsync wget screen
version-control
emacs
;; so we can make guix w/o guix environment
autotools ;; automake
texlive ;; texlive-minimal
curl
xorg certs
graphviz
)
(packages->manifest
(list
;; gnu-gettext
;; gs-fonts font-dejavu font-gnu-freefont-ttf
;; gnu-make
;; openssh nss-certs xauth rsync wget git git-manpages
;; emacs magit screen
aspell aspell-dict-en
;; ;; so we can make guix w/o guix environment
;; texlive-minimal automake
curl ;; lpaste
;; graphviz
))
[-- Attachment #3: system.scm --]
[-- Type: application/octet-stream, Size: 2249 bytes --]
(use-modules (gnu))
(use-service-modules networking ssh)
(use-package-modules
admin
disk
aspell
gettext
ghostscript ;; gs-fonts
fonts ;; font-dejavu font-gnu-freefont-ttf
base
ssh rsync wget screen
version-control
emacs
;; so we can make guix w/o guix environment
autotools ;; automake
texinfo
texlive ;; texlive
;; curl
xorg certs
graphviz
qemu
)
(operating-system
(host-name "g1")
(timezone "America/New_York")
(locale "en_US.utf8")
(bootloader (grub-configuration (device "/dev/sda")))
(file-systems (cons (file-system
(device "g1sd")
(title 'label)
(mount-point "/")
(type "ext4"))
%base-file-systems))
(users (cons* (user-account
(name "glc")
(comment "g l c")
(group "users")
(supplementary-groups '("wheel"))
(home-directory "/home/glc"))
(user-account
(name "g1")
(comment "g1")
(group "users")
(supplementary-groups '("wheel" "kvm"))
(home-directory "/home/g1"))
(user-account
(name "glc2")
(comment "glc2")
(group "users")
(supplementary-groups '("wheel"))
(home-directory "/home/glc2"))
(user-account
(name "glc3")
(comment "glc3")
(group "users")
(supplementary-groups '("wheel"))
(home-directory "/home/glc3"))
(user-account
(name "glc4")
(comment "glc4")
(group "users")
(supplementary-groups '("wheel"))
(home-directory "/home/glc4"))
(user-account
(name "glc5")
(comment "glc5")
(group "users")
(supplementary-groups '("wheel"))
(home-directory "/home/glc5"))
(user-account
(name "glc6")
(comment "glc6")
(group "users")
(supplementary-groups '("wheel"))
(home-directory "/home/glc6"))
%base-user-accounts))
(packages
(cons*
glibc-utf8-locales
parted
gs-fonts font-dejavu font-gnu-freefont-ttf
gnu-make
openssh nss-certs xauth rsync wget git git-manpages
emacs-markdown-mode emacs-web-mode flycheck
screen
emacs magit aspell aspell-dict-en emacs-zenburn-theme paredit
;; so we can make guix w/o guix environment
texinfo
texlive-minimal
automake
;; curl ;; lpaste
graphviz
qemu
%base-packages))
(services (cons* (dhcp-client-service)
(lsh-service #:port-number 22)
%base-services)))
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#23960: lshd: X11 forwarding request failed on channel 0
2016-07-12 20:46 bug#23960: lshd: X11 forwarding request failed on channel 0 myglc2
@ 2016-07-12 20:53 ` myglc2
0 siblings, 0 replies; 2+ messages in thread
From: myglc2 @ 2016-07-12 20:53 UTC (permalink / raw)
To: 23960
myglc2 <myglc2@gmail.com> writes:
> From 'Re: guixSD - problem with X11 forwarding' in help-guix@gnu.org
>
> myglc2 <myglc2@gmail.com> writes:
>
>> ludo@gnu.org (Ludovic Courtès) writes:
>>
>>> myglc2 <myglc2@gmail.com> skribis:
>>>
>>>> On guixSD, with no packages installed in the login user profile, I get
>>>> 'X11 forwarding request failed on channel 0'
>>>
>>> [...]
>>>
>>>> debug1: channel 0: new [client-session]
>>>> debug1: Entering interactive session.
>>>> debug1: Requesting X11 forwarding with authentication spoofing.
>>>> debug1: Sending environment.
>>>> debug1: Sending env LANG = en_US.UTF-8
>>>> X11 forwarding request failed on channel 0
>>>
>>> Right, I see that as well.
>>>
>>> lshd gives some clues in /var/log/messages:
>>>
>>> Feb 23 18:14:09 localhost lshd[430]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>>> Feb 23 18:14:09 localhost lshd[430]: lshd: xauth invocation failed: exit code: 127
>>> Feb 23 18:14:33 localhost lshd[430]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
>>> Feb 23 18:14:33 localhost lshd[430]: lshd: write_buffer: Attempt to write data to closed buffer.
>>> Feb 23 18:14:33 localhost lshd[430]: lshd: Disconnect for reason 11: disconnected by user
>>>
>>> Indeed, server_x11.c in lsh reads:
>>>
>>> #ifndef XAUTH_PROGRAM
>>> # define XAUTH_PROGRAM "/usr/X11R6/bin/xauth"
>>> #endif
>>>
>>> I believe this is fixed by commit da35acf.
>>>
>>> To give it a try, you can run (as root):
>>>
>>> # guix pull
>>> # herd stop ssh-daemon
>>> # guix system reconfigure your-config.scm
>>
>> I tried the above. 'ssh -v ...' still produces results quoted above and
>> I see in /var/log/messages:
>>
>> Feb 29 20:43:54 localhost lshd[6959]: lshd: Failed to cd to `/tmp/.X11-unix' (errno = 2): No such file or directory
>> Feb 29 20:43:54 localhost lshd[6959]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>> Feb 29 20:45:35 localhost lshd[6959]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
>> Feb 29 20:45:35 localhost lshd[6959]: lshd: write_buffer: Attempt to write data to closed buffer.
>> Feb 29 20:45:35 localhost lshd[6959]: lshd: Disconnect for reason 11: disconnected by user
>> Feb 29 20:45:47 localhost lshd[6959]: lshd: Failed to cd to `/tmp/.X11-unix' (errno = 2): No such file or directory
>> Feb 29 20:45:47 localhost lshd[6959]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>>
>> I tried 'sudo mkdir /tmp/.X11-unix' which changed /var/log/messages to:
>>
>> Feb 29 20:54:04 localhost lshd[6959]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>> Feb 29 20:54:09 localhost lshd[6959]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
>> Feb 29 20:54:09 localhost lshd[6959]: lshd: write_buffer: Attempt to write data to closed buffer.
>> Feb 29 20:54:09 localhost lshd[6959]: lshd: Disconnect for reason 11: disconnected by user
>>
>> and 'ssh -v ...' still produces the results quoted above.
>
> Don't think this is fixed yet. ssh in to GuixSD gives ...
>
> 'X11 forwarding request failed on channel 0'
>
> ... and on GuixSD in /var/log/messages I see ...
>
> Jul 12 16:25:42 localhost lshd[384]: lshd: Failed to cd to `/tmp/.X11-unix' (errno = 2): No such file or directory
> Jul 12 16:25:42 localhost lshd[384]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>
> ... or after ...
>
> sudo mkdir /tmp/.X11-unix
>
> ... I see ...
>
> Jul 12 16:21:53 localhost lshd[384]: lshd: Updating utmpx for logout failed (errno = 2): No such file or directory
> Jul 12 16:21:53 localhost lshd[384]: lshd: write_buffer: Attempt to write data to closed buffer.
> Jul 12 16:21:53 localhost lshd[384]: lshd: Disconnect for reason 11: disconnected by user
> Jul 12 16:22:00 localhost lshd[384]: lshd: Updating utmp for login failed (errno = 2): No such file or directory
>
> I am running from a git checkout ...
>
> g1@g1 ~/src/guix$ git branch -av | grep '* master'
> * master 0885881 gnu: obs: Remove compiler flags for non-Intel hardware.
> g1@g1 ~/src/guix$ stat /home/g1/.config/guix/latest | grep File:
> File: ‘/home/g1/.config/guix/latest’ -> ‘../../src/guix’
>
>
> system and user configs attached. TIA - George
Afterthought... when I do ...
sudo mkdir /tmp/.X11-unix
sudo chmod 777 /tmp/.X11-unix
... it works.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-07-12 20:53 ` myglc2
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