A network administrator is configuring a Palo Alto Networks firewall to allow outbound access to the internet for internal users. The administrator wants to ensure that users can access any website but must not bypass security controls using proxy sites or anonymizers. Which Security policy configuration should the administrator implement?
Allowing web-browsing and ssl applications permits normal internet access, while applying a URL Filtering profile that blocks the proxy-avoidance-and-anonymizers category prevents users from accessing proxy sites and anonymizers. This meets the requirement to allow any website but block bypass methods. The URL Filtering profile inspects the requested URLs and blocks those categorized as proxy or anonymizer.
Why this answer
To allow general internet access while blocking proxy sites and anonymizers, the administrator should allow web-browsing and ssl applications and apply a URL Filtering profile that blocks the proxy-avoidance-and-anonymizers category. This ensures users can access legitimate websites but cannot use proxies to bypass security controls. The other options either restrict HTTPS access or do not block proxy sites.
Exam trap
The trap here is assuming that File Blocking or Data Filtering profiles can block proxy sites, when in fact URL Filtering is the correct feature for controlling access to web categories like proxy-avoidance-and-anonymizers.