What Firewall can i use to protect my website from any kind of attacks ?

[netshet]

If you are in fact a client, you do not have rights to install programs. You can do some of the following to prevent any problems.

- Keep strong passwords
- Update software to latest stable versions
- Scan directory every once in a while

But my question to you most of all is, If you do not feel safe with your hosts security measures why are you hosting with them? Hope I helped, Have a great day!