首先，如果需要方便好用的Linux系统和远程服务，个人感觉Oracle Linux做得很不错，一键即可安装开启！
下面以Ubuntu为例对xrdp和vncserver的安装进行说明：

1. 安装桌面环境
   1. ubuntu-desktop：sudo apt install ubuntu-gnome-desktop
   2. ubuntu-desktop-minimal:sudo apt install ubuntu-desktop-minimal
   3. vanilla-desktop:sudo apt install vanilla-gnome-desktop
   4. vanilla-desktop-minimal:sudo apt install gnome-session gnome-terminal
   5. xfce4:sudo apt install xfce4 xfce4-goodies
   6. xubuntu-desktop:sudo apt install xubuntu-desktop
2. 安装xrdp：sudo apt install xrdp
3. 安装vncserver：此处建议使用tigervnc（tightvncserver实用感兼容性较差）:sudo apt install tigervnc-standalone-server
   1. 配置密码：vncserver
   2. 配置vnc启动环境：

sudo apt install ibus
sudo apt install dbus-x11	

vncserver -kill :1 
nano ~/.vnc/xstartup
---------------------------------------------
#!/bin/sh

# Start up the standard system desktop
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
#下面一行修改启动桌面启动环境，如：/usr/bin/gnome-session
exec /usr/bin/startxfce4

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
x-window-manager &
--------------------------------------------
chmod +x ~/.vnc/xstartup

4. 查看所安装的桌面环境：
   1. sudo update-alternatives --config x-session-manager
   2. 修改xrdp启动环境：

vi .xinitrc # exec startplasma-x11
vi .xsession # exec startplasma-x11
sudo nano /etc/xrdp/startwm.sh
-----------------------------------
###注释最后两行，加上一行，如下：
# test -x /etc/X11/Xsession && exec /etc/X11/Xsession
#exec /bin/sh /etc/X11/Xsession
budgie-desktop
-----------------------------------
sudo systemctl restart xrdp

Attached：
中文输入法ibus:

sudo apt-get install ibus ibus-clutter ibus-gtk ibus-gtk3 ibus-qt*
sudo apt-get install ibus-pinyin
echo "export GTK_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
export QT_IM_MODULE=ibus" >> ~/.bashrc

参考文档：
xrdp：

vi .xsession  exec startxfce4
vi v.xinitrc    exec startxfce4

切换桌面环境
设置vncserver