ssh-daemon service fails to auto start

ssh-daemon service fails to auto start

[Martin Castillo]

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hey guix,

i have a problem with the ssh-service. I want it to autostart on system
boot.

my configuration is (similar to) desk,nossh.scm. sshd does start on
system boot with the no-desk,ssh-works.scm and no-desk,ssh-semi.scm
configuration, but is not reachable from outside the vm with the latter
configuration.

now, one difference between the latter two is the dhcp-client-service.

For some reason, I can not use that service with xfce-service. But I
don't know, how related that is.

Can someone with more insight tell me, why sshd won't autostart?
shepherd tells me only 'ssh-daemon could not be started'. Thank you
shepherd, very helpful!


Martin

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[-- Attachment #2: no-desk,ssh-works.scm --]
[-- Type: text/x-scheme, Size: 4066 bytes --]

;; Running in Qemu.
;; This config has no gui. ssh-daemon starts and is reachable from outside

(use-modules (gnu) (gnu system nss))
(use-service-modules ssh)
(use-service-modules networking)
(use-service-modules base desktop)
(use-service-modules xorg)

(use-package-modules wm certs linux)

(define cyborg-quirk
"Section \"InputClass\"
	Identifier \"Saitek Cyborg R.A.T.5 Mouse\"
	MatchIsPointer \"on\"
	MatchProduct \"Saitek Cyborg R.A.T.5 Mouse\"
	MatchVendor \"Saitek|SAITEK\"
	MatchDevicePath \"/dev/input/event*\"
	Option \"ButtonMapping\" \"1 2 3 4 5 6 7 2 9 4 5 12 0 0 0\"
	Option \"ZAxisMapping\" \"10 11\"
#	Option \"AutoReleaseButtons\" \"12 13 14 15\"
EndSection")

(define %my-xorg-conf
	(xorg-configuration-file #:extra-config (list cyborg-quirk)))

(define %my-startx
	(xorg-start-command #:configuration-file %my-xorg-conf))

(define %my-services
       ;; My very own list of services.
       (modify-services %base-services
         (guix-service-type config =>
                            (guix-configuration
                             (inherit config)
                             (substitute-urls (cons "https://berlin.guixsd.org"
						    (guix-configuration-substitute-urls config)))))
	 (slim-service-type config =>
			    (slim-configuration
			      (inherit config)
			      (startx %my-startx)
			      (default-user "mcd")))))

(operating-system
  (host-name "komputilo")
  (timezone "Europe/Berlin")
  (locale "de_DE.UTF-8")

  ;; Assuming /dev/sdX is the target hard disk, and "my-root" is
  ;; the label of the target root file system.
  (bootloader (bootloader-configuration (bootloader grub-bootloader)
					(target "/dev/sda")
				  ;(menu-entries '((menu-entry
				;		    (label "Grub Nixos")
				;		    (multiboot "(hd0)") ; still unsupported
				;                   )))
					))
  (file-systems (cons (file-system
                        (device "muh-guix")
                        (title 'label)
                        (mount-point "/")
                        (type "ext4"))
                      %base-file-systems))

  ;; This is where user accounts are specified.  The "root"
  ;; account is implicit, and is initially created with the
  ;; empty password.
  (users (cons (user-account
                (name "mcd")
                (comment "Martin Castillo")
                (group "users")

                ;; Adding the account to the "wheel" group
                ;; makes it a sudoer.  Adding it to "audio"
                ;; and "video" allows the user to play sound
                ;; and access the webcam.
                (supplementary-groups '("wheel" "audio" "video"
					"netdev"))
                (home-directory "/home/mcd"))
               %base-user-accounts))

  ;; Globally-installed packages.
  ;(packages (cons tcpdump %base-packages))
  ;; Add a bunch of window managers; we can choose one at
  ;; the log-in screen with F1.
  (packages (cons* ;dmenu ;window managers
                   nss-certs                      ;for HTTPS access
                   kbd-neo
                   %base-packages))

  ;; Add services to the baseline: a DHCP client and
  ;; an SSH server.
  (services (cons* (dhcp-client-service)
                   (console-keymap-service (file-append kbd-neo "/share/keymaps/neo.map"));;
                   (service openssh-service-type
                            (openssh-configuration
                              (port-number 2222)))

                   (simple-service 'store-my-config etc-service-type
                                   `(("config.scm" ,(local-file (assoc-ref
                                                                  (current-source-location)
                                                                  'filename)))))
;                   (xfce-desktop-service)
                   %my-services))

  ;; Use the "desktop" services, which include the X11
  ;; log-in service, networking with Wicd, and more.
  ;(services %desktop-services)

  ;; Allow resolution of '.local' host names with mDNS.
  (name-service-switch %mdns-host-lookup-nss))

[-- Attachment #3: no-desk,ssh-semi.scm --]
[-- Type: text/x-scheme, Size: 4071 bytes --]

;; Running in Qemu.
;; This config has no gui. ssh-daemon starts, but is not reachable from outside

(use-modules (gnu) (gnu system nss))
(use-service-modules ssh)
(use-service-modules networking)
(use-service-modules base desktop)
(use-service-modules xorg)

(use-package-modules wm certs linux)

(define cyborg-quirk
"Section \"InputClass\"
	Identifier \"Saitek Cyborg R.A.T.5 Mouse\"
	MatchIsPointer \"on\"
	MatchProduct \"Saitek Cyborg R.A.T.5 Mouse\"
	MatchVendor \"Saitek|SAITEK\"
	MatchDevicePath \"/dev/input/event*\"
	Option \"ButtonMapping\" \"1 2 3 4 5 6 7 2 9 4 5 12 0 0 0\"
	Option \"ZAxisMapping\" \"10 11\"
#	Option \"AutoReleaseButtons\" \"12 13 14 15\"
EndSection")

(define %my-xorg-conf
	(xorg-configuration-file #:extra-config (list cyborg-quirk)))

(define %my-startx
	(xorg-start-command #:configuration-file %my-xorg-conf))

(define %my-services
       ;; My very own list of services.
       (modify-services %base-services
         (guix-service-type config =>
                            (guix-configuration
                             (inherit config)
                             (substitute-urls (cons "https://berlin.guixsd.org"
						    (guix-configuration-substitute-urls config)))))
	 (slim-service-type config =>
			    (slim-configuration
			      (inherit config)
			      (startx %my-startx)
			      (default-user "mcd")))))

(operating-system
  (host-name "komputilo")
  (timezone "Europe/Berlin")
  (locale "de_DE.UTF-8")

  ;; Assuming /dev/sdX is the target hard disk, and "my-root" is
  ;; the label of the target root file system.
  (bootloader (bootloader-configuration (bootloader grub-bootloader)
					(target "/dev/sda")
				  ;(menu-entries '((menu-entry
				;		    (label "Grub Nixos")
				;		    (multiboot "(hd0)") ; still unsupported
				;                   )))
					))
  (file-systems (cons (file-system
                        (device "muh-guix")
                        (title 'label)
                        (mount-point "/")
                        (type "ext4"))
                      %base-file-systems))

  ;; This is where user accounts are specified.  The "root"
  ;; account is implicit, and is initially created with the
  ;; empty password.
  (users (cons (user-account
                (name "mcd")
                (comment "Martin Castillo")
                (group "users")

                ;; Adding the account to the "wheel" group
                ;; makes it a sudoer.  Adding it to "audio"
                ;; and "video" allows the user to play sound
                ;; and access the webcam.
                (supplementary-groups '("wheel" "audio" "video"
					"netdev"))
                (home-directory "/home/mcd"))
               %base-user-accounts))

  ;; Globally-installed packages.
  ;(packages (cons tcpdump %base-packages))
  ;; Add a bunch of window managers; we can choose one at
  ;; the log-in screen with F1.
  (packages (cons* dmenu ;window managers
                   nss-certs                      ;for HTTPS access
                   kbd-neo
                   %base-packages))

  ;; Add services to the baseline: a DHCP client and
  ;; an SSH server.
  (services (cons* ;(dhcp-client-service)
                   (console-keymap-service (file-append kbd-neo "/share/keymaps/neo.map"));;
                   (service openssh-service-type
                            (openssh-configuration
                              (port-number 2222)))

                   (simple-service 'store-my-config etc-service-type
                                   `(("config.scm" ,(local-file (assoc-ref
                                                                  (current-source-location)
                                                                  'filename)))))
;                   (xfce-desktop-service)
                   %my-services))

  ;; Use the "desktop" services, which include the X11
  ;; log-in service, networking with Wicd, and more.
  ;(services %desktop-services)

  ;; Allow resolution of '.local' host names with mDNS.
  (name-service-switch %mdns-host-lookup-nss))

[-- Attachment #4: desk,nossh.scm --]
[-- Type: text/x-scheme, Size: 4155 bytes --]

;; Running in Qemu.
;; This config has gui. ssh-daemon fails to start on system boot, but starts
;; with # herd start ssh-daemon

(use-modules (gnu) (gnu system nss))
(use-service-modules ssh)
(use-service-modules networking)
(use-service-modules base desktop)
(use-service-modules xorg)

(use-package-modules wm certs linux)

(define cyborg-quirk
"Section \"InputClass\"
	Identifier \"Saitek Cyborg R.A.T.5 Mouse\"
	MatchIsPointer \"on\"
	MatchProduct \"Saitek Cyborg R.A.T.5 Mouse\"
	MatchVendor \"Saitek|SAITEK\"
	MatchDevicePath \"/dev/input/event*\"
	Option \"ButtonMapping\" \"1 2 3 4 5 6 7 2 9 4 5 12 0 0 0\"
	Option \"ZAxisMapping\" \"10 11\"
#	Option \"AutoReleaseButtons\" \"12 13 14 15\"
EndSection")

(define %my-xorg-conf
	(xorg-configuration-file #:extra-config (list cyborg-quirk)))

(define %my-startx
	(xorg-start-command #:configuration-file %my-xorg-conf))

(define %my-services
       ;; My very own list of services.
;       (modify-services %base-services
       (modify-services %desktop-services
         (guix-service-type config =>
                            (guix-configuration
                             (inherit config)
                             (substitute-urls (cons "https://berlin.guixsd.org"
						    (guix-configuration-substitute-urls config)))))
	 (slim-service-type config =>
			    (slim-configuration
			      (inherit config)
			      (startx %my-startx)
			      (default-user "mcd")))))

(operating-system
  (host-name "komputilo")
  (timezone "Europe/Berlin")
  (locale "de_DE.UTF-8")

  ;; Assuming /dev/sdX is the target hard disk, and "my-root" is
  ;; the label of the target root file system.
  (bootloader (bootloader-configuration (bootloader grub-bootloader)
					(target "/dev/sda")
				  ;(menu-entries '((menu-entry
				;		    (label "Grub Nixos")
				;		    (multiboot "(hd0)") ; still unsupported
				;                   )))
					))
  (file-systems (cons (file-system
                        (device "muh-guix")
                        (title 'label)
                        (mount-point "/")
                        (type "ext4"))
                      %base-file-systems))

  ;; This is where user accounts are specified.  The "root"
  ;; account is implicit, and is initially created with the
  ;; empty password.
  (users (cons (user-account
                (name "mcd")
                (comment "Martin Castillo")
                (group "users")

                ;; Adding the account to the "wheel" group
                ;; makes it a sudoer.  Adding it to "audio"
                ;; and "video" allows the user to play sound
                ;; and access the webcam.
                (supplementary-groups '("wheel" "audio" "video"
					"netdev"))
                (home-directory "/home/mcd"))
               %base-user-accounts))

  ;; Globally-installed packages.
  ;(packages (cons tcpdump %base-packages))
  ;; Add a bunch of window managers; we can choose one at
  ;; the log-in screen with F1.
  (packages (cons* ;dmenu ;window managers
                   nss-certs                      ;for HTTPS access
                   kbd-neo
                   %base-packages))

  ;; Add services to the baseline: a DHCP client and
  ;; an SSH server.
  (services (cons* ;(dhcp-client-service)
                   (console-keymap-service (file-append kbd-neo "/share/keymaps/neo.map"));;
                   (service openssh-service-type
                            (openssh-configuration
                              (port-number 2222)))

                   (simple-service 'store-my-config etc-service-type
                                   `(("config.scm" ,(local-file (assoc-ref
                                                                  (current-source-location)
                                                                  'filename)))))
                   (xfce-desktop-service)
                   %my-services))
;		   '()))

  ;; Use the "desktop" services, which include the X11
  ;; log-in service, networking with Wicd, and more.
  ;(services %desktop-services)

  ;; Allow resolution of '.local' host names with mDNS.
  (name-service-switch %mdns-host-lookup-nss))

Re: ssh-daemon service fails to auto start

[Ludovic Courtès]

Hi Martin,

Martin Castillo <castilma@uni-bremen.de> skribis:

> i have a problem with the ssh-service. I want it to autostart on system
> boot.
>
> my configuration is (similar to) desk,nossh.scm.

I tried this config in ‘guix system vm’ and sshd is automatically
started on boot, as can be seen with ‘herd status ssh-daemon’ etc.

Does this config work for you in ‘guix system vm’?

> Can someone with more insight tell me, why sshd won't autostart?
> shepherd tells me only 'ssh-daemon could not be started'. Thank you
> shepherd, very helpful!

:-)

Could you check /var/log/shepherd.log?  It will tell you which services,
besides sshd, failed to start.

‘ssh-daemon’ depends only on ‘syslogd’, so as long as ‘syslogd’ is
started, ‘ssh-daemon’ should start.

You can view the dependency graph of Shepherd services with:

  guix system shepherd-graph config.scm | dot -Tpdf > graph.pdf

HTH!

Ludo’.

Re: ssh-daemon service fails to auto start

[Martin Castillo]

On 29.01.2018 18:00, Ludovic Courtès wrote:
> Hi Martin,
> 
> Martin Castillo <castilma@uni-bremen.de> skribis:
> 
>> i have a problem with the ssh-service. I want it to autostart on system
>> boot.
>>
>> my configuration is (similar to) desk,nossh.scm.
> 
> I tried this config in ‘guix system vm’ and sshd is automatically
> started on boot, as can be seen with ‘herd status ssh-daemon’ etc.
> 
> Does this config work for you in ‘guix system vm’?

No.


> Could you check /var/log/shepherd.log?  It will tell you which services,
> besides sshd, failed to start.
> 
> ‘ssh-daemon’ depends only on ‘syslogd’, so as long as ‘syslogd’ is
> started, ‘ssh-daemon’ should start.
> 

I checked /var/log/shepherd.log. Only user-homes and ssh-daemon could
not be started.

Has this maybe to do with missing randomness to create keys? (Even
though there are already server keys.)

Maybe shepherd should store the output of launched programs? Is that
really not possible? I can't be the first one to need that.

Martin

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Re: ssh-daemon service fails to auto start

[Leo Famulari]

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On Sat, Jan 27, 2018 at 11:08:23PM +0100, Martin Castillo wrote:
> my configuration is (similar to) desk,nossh.scm.

Can you share the QEMU command line you use to run desk,nossh.scm?

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Re: ssh-daemon service fails to auto start

[Chris Marusich]

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Martin Castillo <castilma@uni-bremen.de> writes:

> On 29.01.2018 18:00, Ludovic Courtès wrote:
>> Hi Martin,
>> 
>> Martin Castillo <castilma@uni-bremen.de> skribis:
>> 
>>> i have a problem with the ssh-service. I want it to autostart on system
>>> boot.
>>>
>>> my configuration is (similar to) desk,nossh.scm.
>> 
>> I tried this config in ‘guix system vm’ and sshd is automatically
>> started on boot, as can be seen with ‘herd status ssh-daemon’ etc.
>> 
>> Does this config work for you in ‘guix system vm’?
>
> No.
>
>
>> Could you check /var/log/shepherd.log?  It will tell you which services,
>> besides sshd, failed to start.
>> 
>> ‘ssh-daemon’ depends only on ‘syslogd’, so as long as ‘syslogd’ is
>> started, ‘ssh-daemon’ should start.
>> 
>
> I checked /var/log/shepherd.log. Only user-homes and ssh-daemon could
> not be started.
>
> Has this maybe to do with missing randomness to create keys? (Even
> though there are already server keys.)
>
> Maybe shepherd should store the output of launched programs? Is that
> really not possible? I can't be the first one to need that.
>
> Martin

I have experienced this problem as well.  SSH daemon fails to start, but
unfortunately Shepherd has nothing useful to say about why.  If I ever
find a way to reproduce it reliably, I'll share that info.

I think multiple people have reported this problem on IRC.  It can't be
a coincidence...

-- 
Chris

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Re: ssh-daemon service fails to auto start

[Martin Castillo]

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On 06.02.2018 21:01, Leo Famulari wrote:
> On Sat, Jan 27, 2018 at 11:08:23PM +0100, Martin Castillo wrote:
>> my configuration is (similar to) desk,nossh.scm.
> 
> Can you share the QEMU command line you use to run desk,nossh.scm?
> 

qemu-system-x86_64 -m 2048 -smp 2 -enable-kvm \
		-net nic,model=virtio \
		-net user,hostfwd=tcp::5561-:2222 \
		-drive file=guixsd.img

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Re: ssh-daemon service fails to auto start

[Leo Famulari]

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On Mon, Feb 12, 2018 at 09:02:44PM +0100, Martin Castillo wrote:
> 
> On 06.02.2018 21:01, Leo Famulari wrote:
> > On Sat, Jan 27, 2018 at 11:08:23PM +0100, Martin Castillo wrote:
> >> my configuration is (similar to) desk,nossh.scm.
> > 
> > Can you share the QEMU command line you use to run desk,nossh.scm?
> > 
> 
> qemu-system-x86_64 -m 2048 -smp 2 -enable-kvm \
> 		-net nic,model=virtio \
> 		-net user,hostfwd=tcp::5561-:2222 \
> 		-drive file=guixsd.img

I built desk,nossh.scm like this:

$ guix --version
guix (GNU Guix) 63298f14c9679735c6c930e10b0e836666391f01
[...]
# No grafts to save disk space while debugging. Never do that in
# production!
$ guix system vm-image ~/tmp/desk-nossh.scm --no-grafts
[...]
/gnu/store/b3drd7s1mfsnmlc9j63dz5djni9k0y3v-qemu-image

I copied the image file out of the store, made it writeable, and then
ran it with your qemu invocation from above (QEMU 2.10.2 from Guix), and
the SSHD was running after boot.

Did you do anything differently?

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