Create vnc.md

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+# 如何设置VNC远程访问 novnc python-websockify 
+
+使用root账户登录并执行下列操作：
+
+## 安装VNC
+
+```shell
+apt update; sudo apt installtightvncserver -y
+```
+
+### 设置root用户VNC密码
+
+```shell
+vncserver
+You will require a password to access your desktops.
+Password:  # 设置你的root账户的VNC访问密码
+Verify:    # 再次确认你的root账户的VNC访问密码
+## 下面设置仅查看密码(无操作权限)，这里不设置，所以选择"n"
+Would you like to enter a view-only password (y/n)? n 
+```
+### 结束VNC进程
+
+```shell
+vncserver -kill :1
+```
+
+### 设置root账户VNC配置文件
+
+```shell
+mv /root/.vnc/xstartup /root/.vnc/xstartup.bak
+## 编辑文件
+vim /root/.vnc/xstartup
+## 键入下面的内容
+#!/bin/bash
+xrdb $HOME/.Xresources
+startxfce4 &
+```
+
+### 启动检验再关闭退出
+
+```shell
+vncserver ; vncserver -kill :1
+```
+
+### 设置pi账户VNC配置文件
+
+```shell
+mkdir /home/pi/.vnc ; cp ~/.vnc/xstartup /home/pi/.vnc/xstartup
+chown -R  pi /home/pi/.vnc
+adduser pi bluetooth
+## 编辑文件
+vim /etc/dbus-1/system.d/bluetooth.conf
+#### 在"<!-- allow users of bluetooth group to communicate -->" 行上加入以下内容
+  <policy group="pi">
+    <allow send_destination="org.bluez"/>
+  </policy>
+
+## 下面一行不要添加，文件中应该存在
+<!-- allow users of bluetooth group to communicate -->
+
+### 设置pi用户VNC密码
+
+```shell
+su - pi
+
+vncserver
+You will require a password to access your desktops.
+Password:
+Verify:
+Would you like to enter a view-only password (y/n)? n
+
+vncserver -kill :1
+exit
+```
+### 配置VNC服务文件
+
+```shell
+## 编辑文件
+vim /lib/systemd/system/vncserver@.service
+[Unit]
+Description=Start TightVNC server at startup
+After=syslog.target network.target
+
+[Service]
+Type=forking
+User=pi
+Group=sudo
+WorkingDirectory=/home/pi
+
+PIDFile=/home/pi/.vnc/%H:%i.pid
+ExecStartPre=-/usr/bin/vncserver -kill :%i > /dev/null 2>&1
+ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 :%i
+ExecStop=/usr/bin/vncserver -kill :%i
+
+[Install]
+WantedBy=multi-user.target
+```
+
+### 激活和启动服务
+
+```shell
+systemctl daemon-reload; systemctl enable vncserver@1.service ;\
+systemctl start vncserver@1.service ; systemctl status vncserver@1.service
+```