Centos 7 VNC-server issue

iceman81 · 03-28-2016, 01:29 PM

hello all, im trying to set up a vnc server on my centos 7 server virtual machine(hosted on a Win7 Desktop). Network connection is established and i can ssh into that VM from my fedora laptop.

i am following a guide @ https://www.howtoforge.com/vnc-serve...on-on-centos-7

i followed this exactly, with 2 users, using both @:1 and @:2

ssh in so i can copy the output into this forum

/etc/systemd/system/vncserver@:1.service

Code:

 
[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 ant -c "/usr/bin/vncserver %i"
PIDFile=/home/ant/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

trying to start service

Code:

[ab@localhost system]$ 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.

checking status

Code:

[ab@localhost ~]$ 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 Mon 2016-03-28 14:23:31 EDT; 3min 22s ago
  Process: 18718 ExecStart=/usr/sbin/runuser -l ant -c /usr/bin/vncserver %i (code=exited, status=2)
  Process: 18713 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)

on a side note, i have rebooted and also added firewall-cmd rules and did a systemctl daemon-reload as well.

can anyone tell me what i am doing wrong here?

Doug G · 03-28-2016, 04:17 PM

As a guess, make sure your firewall on centos is open for ports 5901 and 5902

iceman81 · 03-28-2016, 05:26 PM

would that prevent the server from launching? i attached a pic of the firewall gui, appears to be set.

i also ran

Code:

firewall-cmd --permanent --zone=public --add-service vnc-server
firewall-cmd --reload

Doug G · 03-28-2016, 06:37 PM

Like I said, only guessing about the firewall, but somewhere in my flaky memory banks I seem to recall vnc not starting if it's port is closed. That was pre-firewalld though.

Searching google for your error message turned up this, perhaps this person's solution would apply: https://www.centos.org/forums/viewto...p?f=48&t=47713

iceman81 · 03-28-2016, 06:46 PM

thanks, i found that page too, still going through it. thanks for the help, i really appreciate it

now i am getting a new error. changed VM ram from 1024 to 2048 because i thought that was the resource it was referring to as system monitor showed me pinned at like 98% usage and it was running super slow.

Code:

[ab@localhost ~]$ systemctl status vncserver@:2.service
● vncserver@:2.service - Remote desktop service (VNC)
   Loaded: loaded (/etc/systemd/system/vncserver@:2.service; enabled; vendor preset: disabled)
   Active: failed (Result: resources) since Mon 2016-03-28 20:22:57 EDT; 1h 46min ago
  Process: 6002 ExecStart=/usr/sbin/runuser -l ab -c /usr/bin/vncserver %i (code=exited, status=0/SUCCESS)
  Process: 5999 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || : (code=exited, status=0/SUCCESS)