Exinda CLI: Logging

Overview

This article describes the Exinda CLI command logging.

You can use the logging command to configure logging parameters and to show the system logs. You can use the show log command to view the log files. The appliance logs activities to a set of system log files.

Information

NOTE: The following syntax convention is used:

{}: Options are enclosed in braces and are separated by '|'
[]: Optional keywords are enclosed in brackets
<>: User input is required where variables are enclosed in greater-than and less-than symbols

Configuring Logging Parameters

The following table describes the commands used for configuring logging parameters:

Action Description	Command	Parameter Description
To specify when to rotate the log files	`logging files rotation criteria frequency {daily\|weekly\|monthly}`	Rotate log files on a fixed schedule: daily - Once per day at midnight weekly - Once per week monthly - On the first day of every month
	`logging files rotation criteria size <megabytes>`	Rotate the log files when the log file surpasses a specified size threshold
	`logging files rotation criteria size-pct <percentage>`	Rotate the logs when they surpass a specified percentage of the disk size
	`logging files rotation force`	Force an immediate rotation of the log files
To specify the maximum number of old log files to keep	`logging files rotation max-num <number>`	Not Applicable
To delete log files	`logging files delete {current\|oldest}`	delete current - Delete the current active log file delete oldest [<number>] - Delete one or more of the oldest log files. If deleting more than one file, specify the number of files to delete
To specify the minimum severity level of log messages saved on the local disk	`logging local {none\|emerg\|alert\|crit\|err\|warning\|notice\|info\|debug}`	none - Disable logging emerg - Emergency: system is unstable alert - Action must be taken immediately crit - Critical conditions err - Error conditions warning - Warning conditions notice - Normal but significant conditions info - Informational messages debug - Debug-level messages
	`logging local override class <class> priority`	Override log levels on a per-class basis
To allow syslog messages to be received from remote hosts	`logging receive`	Not Applicable
To include the number of seconds since the epoch in the logs	`logging fields seconds enable`	Enable the seconds field
	`logging fields seconds fractional-digits {1\|2\|3\|6}`	Specify the number of digits to the right of the decimal point (truncation is from the right)
	`logging fields seconds whole-digits {1\|6\|all}`	Specify the number of digits the left of the decimal point (truncation is from the left) all - Do not limit the number of digits.
To set the format of the log files	`logging format {standard\|welf}`	format standard - Use the standard format for log messages welf - Use WELF format for log messages
To set the severity of log entries recorded for select CLI commands	`logging level cli commands {none\|emerg\|alert\|crit\|err\|warning\|notice\| info\|debug}`	none - Disable logging emerg - Emergency: system is unstable alert - Action must be taken immediately crit - Critical conditions err - Error conditions warning - Warning conditions notice - Normal but significant conditions info - Informational messages debug - Debug-level messages
To send event logs to a specified server using the syslog protocol	`logging <hostname or IPv4 address>`	Not Applicable
Set the minimum severity of log messages sent to syslog servers	`logging trap {none\|emerg\|alert\|crit\|err\|warning\|notice\|info\|debug}`	none - Disable logging emerg - Emergency: system is unstable alert - Action must be taken immediately crit - Critical conditions err - Error conditions warning - Warning conditions notice - Normal but significant conditions info - Informational messages debug - Debug-level messages

Viewing Log Files

The following table describes the commands used for viewing log files:

Action Description	Command	Parameter Description
To view the log file	`show log [continuous] {matching\|not matching} <regex>`	show log - Show entire log file continuous - Show the log file as it gets updated matching <regex> - Show event logs that match a given regular expression not matching <regex> - Show event logs that do not match a given regular expression
To view a listing of archived files	`show log files`	Not Applicable
To view the contents of a log file	`show log files <file number> [{matching\| not matching} <regex>]`	<file number> - The number that identifies the log file matching <regex> - View entries from the selected log file that matches a given regular expression not matching <regex> - View entries from the selected log file that does not match a given regular expression

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Priyanka Bhotika
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