通过启用屏幕共享来开启远程桌面登录，开启后需要关闭encryption，否则会出现无法连接的情况。关闭encryption可以使用系统配置工具dconf来完成。所以先安装dconf-editor。
更新源并安装系统配置工具(不更新源无法进行安装)
1、查看系统版本
root@kali:~# lsb_release -a No LSB modules are available. Distributor ID: Kali Description: Kali GNU/Linux Rolling Release: kali-rolling Codename: kali-rolling
2、添加更新源，更新源内容可以从网上找到：
root@kali:~# root@kali:~# vim /etc/apt/sources.list # deb cdrom:[Debian GNU/Linux 2017.3 _Kali-rolling_ - Official Snapshot amd64 LIVE/INSTALL Binary 20171109-13:49]/ kali-rolling contrib main non-free #deb cdrom:[Debian GNU/Linux 2017.3 _Kali-rolling_ - Official Snapshot amd64 LIVE/INSTALL Binary 20171109-13:49]/ kali-rolling contrib main non-free #中科大 deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib #浙大 deb http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free deb-src http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free #东软大学 deb http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib deb-src http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib #重庆大学 deb http://http.kali.org/kali kali-rolling main non-free contrib deb-src http://http.kali.org/kali kali-rolling main non-free contrib #官方源 #deb http://http.kali.org/kali kali-rolling main non-free contrib #deb-src http://http.kali.org/kali kali-rolling main non-free contrib
3、更新：
apt-get clean && apt-get update
4、安装dconf-editor
apt-get install dconf-editor
开启远程桌面共享
1、搜索共享，打开后进入屏幕共享配置界面，默认是已关闭状态，设置状态为活动并配置密码：
2、搜索dconf打开系统配置编辑器，进入/org/gnome/desktop/remote-access/，编辑require-encryption配置项，把值设为false：
提交修改。
3、使用VNC Viewer远程连接：
