系統資訊

[root@centos8 ~]# cat /etc/redhat-release
CentOS Linux release 8.1.1911 (Core)
[root@centos8 ~]#

注意要安裝桌面環境，如果沒有安裝桌面環境，登進去是黑屏。
處理：
1.安裝桌面環境（yum groupinstall "Server with GUI"）
2.重啟VNCServer（systemctl restart vncserver@:1.service）

安裝VNCServer

[root@centos8 ~]# dnf install -y tigervnc-server tigervnc-server-module

複製配置檔案

[root@centos8 ~]# cp /lib/systemd/system/[email protected] /etc/systemd/system/vncserver@:1.service

編輯 vim /etc/tigervnc/vncserver.users 新增使用者

[root@centos8 ~]# vim /etc/tigervnc/vncserver.users
# TigerVNC User assignment
#
# This file assigns users to specific VNC display numbers.
# The syntax is <display>=<username>. E.g.:
#
# :2=andrew
# :3=lisa
:1=root
 

開啟服務

[root@centos8 ~]# systemctl daemon-reload
[root@centos8 ~]# systemctl start vncserver@:1.service

如果是給非root建立的話需要切換到該使用者下產生vncpasswd

[root@centos8 ~]# su user
[user@centos8 ~]$ vncpasswd
Password:
Verify:
Would you like to enter a view-only password (y/n)? n
A view-only password is not used
[user@centos8 ~]$ exit
exit
 

測試是否VNCServer是否開起來

[root@centos8 ~]# nc -zv localhost 5901
Ncat: Version 7.70 ( https://nmap.org/ncat )
Ncat: Connected to ::1:5901.
Ncat: 0 bytes sent, 0 bytes received in 0.01 seconds.

關閉防火牆或開啟埠許可權

關閉防火牆

[root@centos8 ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2020-06-21 22:40:18 CST; 14min ago
     Docs: man:firewalld(1)
 Main PID: 890 (firewalld)
    Tasks: 2 (limit: 11460)
   Memory: 29.7M
   CGroup: /system.slice/firewalld.service
           └─890 /usr/libexec/platform-python -s /usr/sbin/firewalld --nofork --nopid

Jun 21 22:40:16 centos8 systemd[1]: Starting firewalld - dynamic firewall daemon...
Jun 21 22:40:18 centos8 systemd[1]: Started firewalld - dynamic firewall daemon.
[root@centos8 ~]# systemctl stop firewalld

開啟埠許可權

–permanent永久生效，沒有此引數重啟後失效

[root@centos8 ~]# firewall-cmd --zone=public --add-port=5901/tcp --permanent
success
[root@centos8 ~]# firewall-cmd --reload
success