Question 670
A published SSH VIP points to the correct internal host but maps external TCP 2222 to an unexpected internal port, generating connection resets. Which TWO complementary choices provide the appropriate response AND the key evidence for verifying it? Select TWO.
Explanation
Correct Answers
Inspect VIP external and mapped addresses and ports, external interface, inbound policy, source restrictions, session DNAT state and server return route. This distinguishes the relevant FortiGate device, session or controller evidence. Creating a VIP object alone does not allow traffic; a corresponding firewall policy, correct port mapping and valid server route are required. The corresponding action is: Publish only approved internal services through FortiGate virtual IP destination NAT mappings and a matching WAN-to-server firewall policy, including appropriate port-forwarding constraints. This is the verification portion of the required complementary pair. Scenario: A published SSH VIP points to the correct internal host but maps external TCP 2222 to an unexpected internal port, generating connection resets.
Publish only approved internal services through FortiGate virtual IP destination NAT mappings and a matching WAN-to-server firewall policy, including appropriate port-forwarding constraints. This directly addresses the FortiOS configuration or response required by the case. Creating a VIP object alone does not allow traffic; a corresponding firewall policy, correct port mapping and valid server route are required. Verify with: Inspect VIP external and mapped addresses and ports, external interface, inbound policy, source restrictions, session DNAT state and server return route. This is the implementation portion of the required complementary pair. Scenario: A published SSH VIP points to the correct internal host but maps external TCP 2222 to an unexpected internal port, generating connection resets.
Incorrect Answers
Inspect LDAPS connection and certificate trust, directory bind status, search base, user attributes, group membership and authentication test output. This choice relates to LDAP remote user integration over trusted TLS, not the complementary implementation-and-evidence pair for the case. Implement: Publish only approved internal services through FortiGate virtual IP destination NAT mappings and a matching WAN-to-server firewall policy, including appropriate port-forwarding constraints. Check: Inspect VIP external and mapped addresses and ports, external interface, inbound policy, source restrictions, session DNAT state and server return route. Scenario: A published SSH VIP points to the correct internal host but maps external TCP 2222 to an unexpected internal port, generating connection resets.
Domain logins populate fresh user-to-IP entries for supported clients and assigned groups drive the intended identity-aware firewall policies. This choice relates to FSSO collector agent and domain-controller event acquisition, not the complementary implementation-and-evidence pair for the case. Implement: Publish only approved internal services through FortiGate virtual IP destination NAT mappings and a matching WAN-to-server firewall policy, including appropriate port-forwarding constraints. Check: Inspect VIP external and mapped addresses and ports, external interface, inbound policy, source restrictions, session DNAT state and server return route. Scenario: A published SSH VIP points to the correct internal host but maps external TCP 2222 to an unexpected internal port, generating connection resets.
Design supported NAT loopback or split-horizon DNS for internal clients that use a service's public VIP, validating both destination and source translation where required. This choice relates to NAT hairpin and internal use of public VIP names, not the complementary implementation-and-evidence pair for the case. Implement: Publish only approved internal services through FortiGate virtual IP destination NAT mappings and a matching WAN-to-server firewall policy, including appropriate port-forwarding constraints. Check: Inspect VIP external and mapped addresses and ports, external interface, inbound policy, source restrictions, session DNAT state and server return route. Scenario: A published SSH VIP points to the correct internal host but maps external TCP 2222 to an unexpected internal port, generating connection resets.