Install Xfce and VNC on Ubuntu 18.04.2
sudo apt update && sudo apt upgrade –y1.Install Xfce and VNC
sudo apt install xfce4 xfce4-goodies tightvncserver
2.Configure VNC Server
vncserver输入一个至少8个字符的密码。不需要view-only 密码。现在需要新建/home/myroot/.vnc/xstartup 文件，在此之前，先kill VNC servicevncserver -kill :1cp ~/.vnc/xstartup ~/.vnc/xstartup.bakvi ~/.vnc/xstartup在文件后增加：startxfce4 &sudo chmod +x ~/.vnc/xstartup重新运行vncserver $ vncserver
3. 建立 SSH Tunnel
为了在vnc server和vnc client 之间建立安全加密的通信，可以通过 PuTTY client 建立 SSH Tunnel 将 vncserver 的远程Port 5901与本机的端口5901绑定。
打开 PuTTY ,
选择 Connection > SSH > Tunnels.
在 Source Port, 输入 5901
In Destination, 输入： ip:5901
点击 Add.
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选择 Session.在 Host Name（or IP address）,输入用户名@IP, (e.g, myroot@172.16.11.80).
在 Saved Sessions, 输入“SSH Tunnel for VNC”
点击 Save 保存，然后点 Open .
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输入密码(是登录Ubuntu的密码，不是VNCServer的密码)，登录Ubuntu。
查看日志确认SSH Tunnel 是否建立成功：
点击 PuTTY 图标， 选择Event Log
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现在可以通过VNC Client 去连接 VNC Server: 输入 localhost:5901
然后点”Connect“
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输入VNC Server 连接密码：
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连接成功：点”Use default config“
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4. 配置 VNC Server 作为服务运行
为了让VNC 在服务器重启时自动运行，可以使VNC server 作为服务运行。
$ sudo vi /etc/systemd/system/vncserver@.service
Description=Start TightVNC server at startup
After=syslog.target network.target
Type=forking
User=
Group=
WorkingDirectory=/home/
PIDFile=/home//.vnc/%H:%i.pid
ExecStartPre=-/usr/bin/vncserver -kill :%i > /dev/null 2>&1
ExecStart=/usr/bin/vncserver -depth 24 -geometry:%i
ExecStop=/usr/bin/vncserver -kill :%i
WantedBy=multi-user.target
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重载 daemon-reload:
Reload systemd manager configuration.
sudo systemctl daemon-reload
Enable the unit file you just created.
sudo systemctl enable vncserver@1.service
Kill vncserver.
vncserver -kill :1
Start vncserver again.
sudo systemctl start vncserver@1
Ensure service is running.
sudo systemctl status vncserver@1
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这样每次重启后，要连接vnc server,先通过PuTTy 建立SSH Tunnel 再通过vnc client 连接。
sudo apt install firefox
安装firefox：
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