How to start Ubuntu desktop after two times ssh login my server?

Please refer my first post about why I cannot use startx to start a Ubuntu desktop.

I use ssh to log in the remote server then use ssh again to log in my account. I installed ubuntu-desktop under my account but I cannot start a desktop.

ssh root@xxx.xxx.xx.xxx

Then I log in my account:

[root@CBD-001 ~]# ssh xfwu@xx.xxx.xxx.xx

x is number