Cisco ASA Audit Event: 109031

Cisco ASA Events

The logs of network perimeter devices such as firewalls, antivirus applications and intrusion prevention systems contain crucial information that helps to pre-emptively block security attacks and breaches. Hence, it's mandatory for you to monitor and audit these logs. Because Cisco ASA provides the combined functionality of all the three, it becomes all the more important to monitor its logs. 

ManageEngine's EventLog Analyzer, a comprehensive log management solution, collects and analyzes the log data from Cisco ASA devices, triggers alerts and generate reports on detected security incidents thus helping you to take suitable measures against security threats, if any. 

Cisco » 109031: NT Domain Authentication Failed

109031: NT Domain Authentication Failed

Cisco ASA is a security device that provides the combined capabilities of a firewall, an antivirus, and an intrusion prevention system. It also facilitates virtual private network (VPN) connections. It helps to detect threats and stop attacks before they spread through the network.

Message: %ASA-4-109031: NT Domain Authentication Failed: rejecting guest login for username.

Event 109031 is generated when a user connection is denied because the user tried to authenticate to an NT domain that had been configured for guest account access and the username was not a valid username on the NT server.

How could you resolve this situation?

In the case of a valid user, add an account to the NT server. If the user is not allowed access, no action is required.

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