Table of Contents
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Chapter A
Troubleshooting
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Understanding the show events Command
The show events command is useful for troubleshooting event capture issues in which you are not seeing
events in Event Viewer or Security Monitor. You can use the show events command to determine which
events are being generated on the sensor to make sure events are being generated and that the fault lies
with the monitoring side.
You can clear all events from Event Store by using the clear events command.
Here are the parameters for the show events command:
sensor# show events
<cr>
alert
error
hh:mm[:ss]
log
nac
past
status
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Displaying Events
Use the show events [{alert [informational] [low] [medium] [high] [include-traits traits]
[exclude-traits traits] [min-threat-rating min-rr] [max-threat-rating max-rr] | error [warning]
[error] [fatal] | NAC | status}] [hh:mm:ss [month day [year]] | past hh:mm:ss] command to display
events from Event Store.
Events are displayed beginning at the start time. If you do not specify a start time, events are displayed
beginning at the current time. If you do not specify an event type, all events are displayed.
Events are displayed as a live feed. To cancel the request, press Ctrl-C.
Note
The following options apply:
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OL-18504-01
evLogTransaction—Record of control transactions processed by each sensor application
evShunRqst—Block requests
Display local system alerts.
Display error events.
Display start time.
Display log events.
Display NAC shun events.
Display events starting in the past specified time.
Display status events.
Output modifiers.
alert—Displays alerts. Provides notification of some suspicious activity that may indicate an attack
is in process or has been attempted. Alert events are generated by Analysis Engine whenever a
signature is triggered by network activity. If no level is selected (informational, low, medium, or
high), all alert events are displayed.
include-traits—Displays alerts that have the specified traits.
exclude-traits—Does not display alerts that have the specified traits.
traits—Trait bit position in decimal (0 to 15).
min-threat-rating—Displays events with a threat rating above or equal to this value. The default is
0. The valid range is 0 to 100.
max-threat-rating—Displays events with a threat rating below or equal to this value. The default
is 100. The valid range is 0 to 100.
error—Displays error events. Error events are generated by services when error conditions are
encountered. If no level is selected (warning, error, or fatal), all error events are displayed.
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.0
Gathering Information
A-89
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Table of Contents
Troubleshooting
