SK0-003 · Question #790
An administrator has set up web-based software that is able to be administered remotely. The website works fine on the local server, the site is not available when accessed from a remote PC. Which…
The correct answer is B. Software Firewall. If a web service works locally but not remotely, the most common culprit is a software firewall blocking incoming connection requests from outside the local machine.
Question
An administrator has set up web-based software that is able to be administered remotely. The website works fine on the local server, the site is not available when accessed from a remote PC. Which of the following is the cause?
Options
- AFailed driver
- BSoftware Firewall
- CUser Account Control
- DThe web service is not started
How the community answered
(42 responses)- A7% (3)
- B76% (32)
- C2% (1)
- D14% (6)
Why each option
If a web service works locally but not remotely, the most common culprit is a software firewall blocking incoming connection requests from outside the local machine.
A failed driver would likely affect the server's overall functionality or specific hardware, but it wouldn't explain a web service working locally but not remotely.
A software firewall, such as Windows Firewall, is designed to control network traffic in and out of a computer. If the firewall is configured to block incoming connections on the port the web service uses (e.g., port 80 or 443), remote clients will be unable to access the site, even if the service is running locally.
User Account Control (UAC) is a security feature in Windows that prompts for administrative consent for certain actions; it doesn't block remote access to a running web service.
If the web service were not started, the website would not be available even on the local server, contradicting the problem statement.
Concept tested: Network firewall blocking inbound connections
Source: https://learn.microsoft.com/en-us/windows/security/threat-protection/windows-firewall/windows-firewall-with-advanced-security
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