LF İnformation about hosting

[Withmain]

Sorry about all my sux questions but i have not that good english and its not to easy to understand all.

So i have 350mbit download 50mbit upload speed at home but i got problem opening ports ,my internet company block and i read much thats risky ,attacks are possible if i open like this.

So i stars searching for host companyes but i have no idea how works.

İ found a plan (example) i click on it he gives me new window with 

Hostname - Root password - NS 1 - NS2 

For server database i work with Navicat. 

So for open the server with hosting how can i complete them ,do i need to send my database files or server files there?

Or if i send them whrn i want to add some stuff at my serv  how i reach files? 

 

Edited March 27, 2019 by Withmain