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What syslog messages are sent to syslog?



Article ID: KB6511 KB Last Updated: 20 Aug 2010Version: 4.0
What syslog messages are sent to syslog?
  • Syslog message
  • Logging messages


Syslog messages are broken up into two distinct facilities: normal and secure.  Secure messages are identified based on the severity of the messages.  The severity of the messages are as follows:

EMERGENCY: Generates messages on SYN attacks, Tear Drop attacks, and Ping of Death attacks.

ALERT: Generates messages for multiple user authentication failures and other firewall attacks not included in the emergency category.

CRITICAL: Generates messages for URL blocks, traffic alarms, high availability (HA) status changes, and global communications.

ERROR: Generates messages for admin name and password changes.

WARNING: Generates messages for admin logins and logouts, failures to log in and log out, and user authentication failures, successes, and timeouts.

NOTICE: Generates messages for link status changes, load balancing server status changes, and traffic logs.

INFO: Generates any kind of message not specified in other categories.

DEBUG: Generates all messages.

Emergency and alert messages are sent to the Secure facilities, while Critical, Error, Warning, Notice, Info, and Debug messages are sent to the normal facilities.  For more information on configuring Syslog on the NetScreen, please see KB4759

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