A system administrator is tasked to harden a server so that it is not accessible using HTTP. Which of the following tools or techniques should the administrator use to accomplish this? (Select TWO).

A.
Change default passwords on the server

B.
Antivirus software

C.
Encryption software

D.
Disable port 80

E.
Disable port 443

F.
Firewall

G.
Patch management server