From the Kali Linux virtual machine, which addresses does the lab instruct you to test for the DMZ web server?
Answer
http://10.xx.xx.253 and https://10.xx.xx.253
Explanation
### Why this is right
The lab instructs students to open both the HTTP and HTTPS versions of the firewall's Internet-facing address from Kali. The NAT rules then forward those requests to the DMZ server.
### The concept
The external client tests the address it can reach on the firewall's Internet-facing side. Destination NAT changes the request's destination to 172.16.10.10. Testing both protocols checks that both service mappings are configured. Replace `xx` with the network's assigned value, as the lab directs.
### The other options
- **B. http://172.16.10.10 only**: this tests the DMZ server address directly, rather than the public-facing address through NAT, and omits HTTPS.
- **C. http://10.xx.xx.253 and https://172.16.10.10**: it uses different destinations for the two tests instead of testing the firewall address for both.
- **D. http://google.ca and https://google.ca**: those are Internet destinations, not the lab's DMZ web-server test.
### Terms
- **Kali Linux**: The Linux virtual machine used as the external test client in the lab.
- **HTTPS**: Hypertext Transfer Protocol Secure, a secure web protocol.
### Remember
Test the external address for both protocols; the NAT rule supplies the internal server destination.
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