我尝试远程连接到我的 Amazon EC2 服务器（我按照本教程安装了 vncserver http://www.brianlinkletter.com/how-to-run-gui-applications-xfce-on-an-amazon-aws-云服务器实例/）。
我已经按照所有说明和命令“xeyes”在我的笔记本电脑 Ubuntu 上运行良好，但是当我启动命令时：
xvncviewer localhost:1
连接被拒绝：
main: unable to connect to host: Connection refused (111)
我已经在 VNC 上定义了密码以获取信息。
问题在哪里？请帮我 ！！
现在一切都好！我不知道为什么，但几次后窗口出现了！
感谢阅读
sorry i didnt launch the VNC SERVER .... but now the connection is ok but nothing appear on my screen :
Fri Jul 27 09:57:29 2018
vncext: VNC extension running!
vncext: Listening for VNC connections on local interface(s), port 5901
vncext: created VNC server for screen 0
/usr/bin/startxfce4: X server already running on display :1
gpg-agent[862]: WARNING: "--write-env-file" is an obsolete option - it has no effect
gpg-agent: a gpg-agent is already running - not starting a new one
(xfce4-session:849): xfce4-session-WARNING **: gpg-agent returned no PID in the variables
(xfce4-session:849): xfce4-session-WARNING **: xfsm_manager_load_session: Something wrong with /home/jamal/.cache/sessions/xfce4-session-kali:1, Does it exist? Permissions issue?
(xfsettingsd:878): xfsettingsd-WARNING **: Failed to get the _NET_NUMBER_OF_DESKTOPS property.
(xfwm4:866): xfwm4-WARNING **: Error opening /dev/dri/card0: Permission denied
** (light-locker:875): ERROR **: Environment variable XDG_SESSION_PATH not set. Is LightDM running?
Fri Jul 27 09:59:01 2018
Connections: accepted: [::1]::41716
SConnection: Client needs protocol version 3.8
SConnection: Client requests security type VncAuth(2)
Fri Jul 27 09:59:05 2018
VNCSConnST: Server default pixel format depth 24 (32bpp) little-endian rgb888
VNCSConnST: Client pixel format depth 6 (8bpp) rgb222
VNCSConnST: Client pixel format depth 24 (32bpp) little-endian rgb888
above the vnc log.
my user has all admin privilege in sudoers files ( ALL:ALL:ALL ).
首先使用命令行登录终端，如下所示：
ssh -L 5902:localhost:5902 -i yourkey.pem ubuntu@ec2-XX-XXX-XX-XX.us-west-2.compute.amazonaws.com
使连接的命令行保持打开状态。然后在您的 VNC 查看器上，尝试使用以下命令访问：
localhost:5902
作为 VNC 服务器地址。它会询问您的密码，然后加载 GUI。