[root@ecs-f61c-0001 ~]# nkvers
############## NeoKylin Linux Version#################
Release:
NeoKylin Linux Advanced Server release V7Update6 (Chromium)

Kernel:
4.14.0-115.5.1.el7a.06.aarch64

Build:
NeoKylin Linux Advanced Server 
release V7Update6/(Chromium)-aarch64
b06.lic/20190619

[root@ecs-f61c-0001 sysconfig]# yum install tigervnc-server

[root@ecs-f61c-0001 sysconfig]# yum install vnc

[root@ecs-f61c-0001 sysconfig]# systemctl stop firewalld.service
[root@ecs-f61c-0001 sysconfig]# systemctl disable firewalld.service

[root@ecs-f61c-0001 sysconfig]# cp /lib/systemd/system/vncserver@.service /lib/systemd/system/vncserver@:1.service
[root@ecs-f61c-0001 sysconfig]# cp /lib/systemd/system/vncserver@.service /lib/systemd/system/vncserver@:2.service

# The vncserver service unit file
#
# Quick HowTo:
# 1. Copy this file to /etc/systemd/system/vncserver@.service
# 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 <USER> -c "/usr/bin/vncserver %i"
PIDFile=/home/<USER>/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target

[root@ecs-f61c-0001 sysconfig]# systemctl daemon-reload

[root@ecs-f61c-0001 sysconfig]# vncpasswd root
Password:
Verify:
Would you like to enter a view-only password (y/n)? y
Password:
Verify:

[root@ecs-f61c-0001 sysconfig]# systemctl start vncserver@:1.service

或者

[root@ecs-f61c-0001 sysconfig]# vncserver :1

[root@ecs-f61c-0001 sysconfig]# systemctl stop vncserver@:1.service

或者

[root@ecs-f61c-0001 sysconfig]# vncserver -kill :1

[root@ecs-f61c-0001 sysconfig]# systemctl enable vncserver@:1.service
[root@ecs-f61c-0001 sysconfig]# systemctl enable vncserver@:2.service

[root@ecs-f61c-0001 sysconfig]# systemctl status -l 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: exit-code) since 一 2016-04-25 19:07:23 CST; 7s ago
Process: 10305 ExecStart=/usr/sbin/runuser -l fang -c /usr/bin/vncserver %i (code=exited,
status=1/FAILURE)
Process: 10291 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || :
(code=exited, status=0/SUCCESS)

4月 25 19:07:23 localhost.localdomain systemd[1]: Starting Remote desktop service (VNC)...
4月 25 19:07:23 localhost.localdomain systemd[1]: vncserver@:2.service: control process
exited, code=exited status=1
4月 25 19:07:23 localhost.localdomain systemd[1]: Failed to start Remote desktop service
(VNC).
4月 25 19:07:23 localhost.localdomain systemd[1]: Unit vncserver@:2.service entered failed
state.
4月 25 19:07:23 localhost.localdomain systemd[1]: vncserver@:2.service failed.

[root@ecs-f61c-0001 sysconfig]#  systemctl start vncserver@:2.service
Job for vncserver@:2.service failed because the control process exited with error code. See
"systemctl status vncserver@:2.service" and "journalctl -xe" for details.
[root@ecs-f61c-0001 sysconfig]#  systemctl status -l 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: exit-code) since 一 2016-04-25 19:09:41 CST; 6s ago
Process: 12367 ExecStart=/usr/sbin/runuser -l root -c /usr/bin/vncserver %i (code=exited,
status=98)
Process: 12354 ExecStartPre=/bin/sh -c /usr/bin/vncserver -kill %i > /dev/null 2>&1 || :
(code=exited, status=0/SUCCESS)

4月 25 19:09:41 localhost.localdomain systemd[1]: Starting Remote desktop service (VNC)...
4月 25 19:09:41 localhost.localdomain systemd[1]: vncserver@:2.service: control process
exited, code=exited status=98
4月 25 19:09:41 localhost.localdomain systemd[1]: Failed to start Remote desktop service
(VNC).
4月 25 19:09:41 localhost.localdomain systemd[1]: Unit vncserver@:2.service entered failed
state.
4月 25 19:09:41 localhost.localdomain systemd[1]: vncserver@:2.service failed.

[root@ecs-f61c-0001 sysconfig]# chmod 777 /root/.vnc/xstartup

[root@ecs-f61c-0001 sysconfig]# systemctl stop firewalld.service #停止
[root@ecs-f61c-0001 sysconfig]# systemctl disable firewalld.service #禁用