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Der Start des TigerVNC-Serverdienstes schlägt fehl

tag-icon • tag-icon vnc centos-7 tigervnc
Der Start des TigerVNC-Serverdienstes schlägt fehl

Versuch, TigerVNC für den Remote-Desktop-Zugriff (als Root) auf einer Centos7-Maschine zu installieren, basierend aufDasArtikel. Habe die folgenden Konfigurationen

[root@HW01 ~]# cat /etc/systemd/system/vncserver@:1.service
# The vncserver service unit file
#
# Quick HowTo:
# 1. Copy this file to /etc/systemd/system/[email protected]
# 2. Replace <USER> with the actual user name and edit vncserver
#    parameters appropriately
#    (ExecStart=/usr/sbin/runuser -l <USER> -c "/usr/bin/vncserver %i"
#     PIDFile=/home/<USER>/.vnc/%H%i.pid)
# 3. Run `systemctl daemon-reload`
# 4. Run `systemctl enable vncserver@:<display>.service`
#
# DO NOT RUN THIS SERVICE if your local area network is
# untrusted!  For a secure way of using VNC, you should
# limit connections to the local host and then tunnel from
# the machine you want to view VNC on (host A) to the machine
# whose VNC output you want to view (host B)
#
# [user@hostA ~]$ ssh -v -C -L 590N:localhost:590M hostB
#
# this will open a connection on port 590N of your hostA to hostB's port 590M
# (in fact, it ssh-connects to hostB and then connects to localhost (on hostB).
# See the ssh man page for details on port forwarding)
#
# You can then point a VNC client on hostA at vncdisplay N of localhost and with
# the help of ssh, you end up seeing what hostB makes available on port 590M
#
# Use "-nolisten tcp" to prevent X connections to your VNC server via TCP.
#
# Use "-localhost" to prevent remote VNC clients connecting except when
# doing so through a secure tunnel.  See the "-via" option in the
# `man vncviewer' manual page.


[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
Type=forking

# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/sbin/runuser -l root -c "/usr/bin/vncserver %i"
PIDFile=/root/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target

tat...

[root@HW01 ~]# vncpasswd
Password:
Password not changed
[root@HW01 ~]#

um kein Passwort für Root zu bestätigen, erhalte aber die folgenden Fehler ...

[root@HW01 ~]# systemctl start vncserver@:1.service
Job for vncserver@:1.service failed because the control process exited with error code. See "systemctl status vncserver@:1.service" and "journalctl -xe" for details.
[root@HW01 ~]# systemctl status vncserver@:1.service
● vncserver@:1.service - Remote desktop service (VNC)
   Loaded: loaded (/etc/systemd/system/vncserver@:1.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2019-07-19 16:03:11 HST; 14s ago
  Process: 72135 ExecStart=/usr/sbin/runuser -l root -c /usr/bin/vncserver %i (code=exited, status=1/FAILURE)
  Process: 72129 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)

Jul 19 16:03:11 HW01.ucera.local systemd[1]: Starting Remote desktop service (VNC)...
Jul 19 16:03:11 HW01.co.local runuser[72135]: Password:
Jul 19 16:03:11 HW01.co.local systemd[1]: vncserver@:1.service: control process exited, cod...s=1
Jul 19 16:03:11 HW01.co.local systemd[1]: Failed to start Remote desktop service (VNC).
Jul 19 16:03:11 HW01.co.local systemd[1]: Unit vncserver@:1.service entered failed state.
Jul 19 16:03:11 HW01.co.local systemd[1]: vncserver@:1.service failed.
Hint: Some lines were ellipsized, use -l to show in full.

Weiß jemand, was hier schief laufen könnte? Irgendwelche Vorschläge zur Fehlerbehebung?

Antwort1

Basierend auf einem Beitrag zum RHEL7Forenund dem zuvor verlinkten Artikel scheint das Problem zu sein, dass ich das vncpasswd für den Benutzer nicht zurückgesetzt habe (ich hatte das vorher absichtlich nicht getan, da ich das Passwort leer lassen wollte (scheint, dass das nicht möglich ist oder dass ich falsch verstehe, was das vncpasswd wirklich macht)). Also mache ich das hier...

Bildbeschreibung hier eingeben

... aus dem Artikel vor dem Start des Dienstes hat zur Behebung des Problems beigetragen.

[root@HW04 ~]# vncpasswd
Password:
Verify:
Would you like to enter a view-only password (y/n)? n
A view-only password is not used
[root@HW04 ~]# systemctl start vncserver@:1.service
[root@HW04 ~]# systemctl status vncserver@:1.service
● vncserver@:1.service - Remote desktop service (VNC)
   Loaded: loaded (/etc/systemd/system/vncserver@:1.service; enabled; vendor preset: disabled)
   Active: inactive (dead) since Mon 2019-07-22 12:39:17 HST; 5min ago
  Process: 2170 ExecStop=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)
  Process: 2125 ExecStart=/usr/sbin/runuser -l root -c /usr/bin/vncserver %i (code=exited, status=0/SUCCESS)
  Process: 2122 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)
 Main PID: 2143 (code=exited, status=0/SUCCESS)

Jul 22 12:39:09 HW04.co.local systemd[1]: Starting Remote desktop service (VNC)...
Jul 22 12:39:17 HW04.co.local systemd[1]: Started Remote desktop service (VNC).

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