42-11
Cisco Security Appliance Command Line Configuration Guide
OL-10088-01
Chapter 42 Monitoring the Security Appliance
Configuring and Managing Logs
The following example shows how enable logging and send to the ASDM log buffer system log messages
of severity levels 0, 1, and 2.
hostname(config)# logging asdm 2
Step 2 To specify the number of system log messages retained in the ASDM log buffer, enter the following
command:
hostname(config)# logging asdm-buffer-size num_of_msgs
Where num_of_msgs specifies the number of system log messages that the security appliance retains in
the ASDM log buffer.
The following example shows how to set the ASDM log buffer size to 200 system log messages.
hostname(config)# logging asdm-buffer-size 200
Clearing the ASDM Log Buffer
To erase the current contents of the ASDM log buffer, enter the following command:
hostname(config)# clear logging asdm
Sending System Log Messages to a Telnet or SSH Session
Viewing system log messages in a Telnet or SSH session requires two steps:
1. Specify which messages should be sent to Telnet or SSH sessions.
2. View logs in the current session.
This section includes the following topics:
• Configuring Logging for Telnet and SSH Sessions, page 42-11
• Viewing System Log Messges in the Current Session, page 42-12
Configuring Logging for Telnet and SSH Sessions
Note To start logging to a Telnet or SSH session as defined in this procedure, be sure to enable logging for all
output locations. See the “Enabling Logging to All Configured Output Destinations” section on
page 42-6. To disable logging, see the “Disabling Logging to All Configured Output Destinations”
section on page 42-6.
To specify which messages should be sent to Telnet or SSH sessions, enter the following command:
hostname(config)# logging monitor {severity_level | message_list}
Where the severity_level argument specifies the severity levels of messages to be sent to the session. You
can specify the severity level number (0 through 7) or name. For severity level names, see the “Severity
Levels” section on page 42-23. For example, if you set the level to 3, then the security appliance sends
system log messages for level 3, 2, 1, and 0.
The message_list argumentspecifies a customized message list that identifies the system log messages
to send to the session. For information about creating custom message lists, see the “Filtering System
Log Messages with Custom Message Lists” section on page 42-17.
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