A secured application to access the remote server like Team Viewer, Go to my PC

1. Access the remote server 2. If possible two levels of authentication (password and security code sent via text message) 3. Do all the activities being able to do everything on site 4. Transfer Files from a remote server to this computer we are accessing from and Vice versa. 5. Start the app when window starts 6. Being able to reboot the remote server and login remotely And Extras Second simple Interface to login via Web, Manage users's profile, change password, forgot password, Password reset with multi reset through email and security code from text message. Prefer it to be coded in C# and the web UI Interface in .net with c# in back end (if possible in .net core)