Open Port Re-check

This script is Copyright (C) 2002-2014 Tenable Network Security, Inc.

Synopsis :

Previously open ports are now closed.

Description :

One of several ports that were previously open are now closed or

There are several possible reasons for this :

- The scan may have caused a service to freeze or stop

- An administrator may have stopped a particular service
during the scanning process.

This might be an availability problem related to the following :

- A network outage has been experienced during the scan,
and the remote network cannot be reached anymore by the

- This scanner may has been blacklisted by the system
administrator or by an automatic intrusion detection /
prevention system that detected the scan.

- The remote host is now down, either because a user
turned it off during the scan or because a select denial
of service was effective.

In any case, the audit of the remote host might be incomplete and may
need to be done again.

Solution :

- Increase checks_read_timeout and/or reduce max_checks.

- Disable any IPS during the Nessus scan

Risk factor :


Family: General

Nessus Plugin ID: 10919 (check_ports.nasl)

Bugtraq ID: