Syslog Message Properties
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rawsyslogmsg
The message as it was received from the wire (unparsed).
syslogfacility
The facility of a syslog message. For non-syslog messages, the value is provided based on configuration. In essence, this is simply an integer value that can be used for quick filtering inside your rules.
syslogpriority
The severity of a syslog message. For non-syslog messages, this should be a close approximation to what a syslog severity code means.
syslogtag
The syslog tag value, a short string. For non-syslog messages, this is provided based on configuration. In most cases, this is used for filtering.
syslogver
Contains the syslog version number which will be one or higher if a RFC 5424 valid message has been received, or 0 otherwise
syslogappname
Contains the appname header field, only available if the Syslog message was in RFC 5424 format. Otherwise, this field will be emulated by the %syslogtag% property
syslogprocid
Contains the procid header field, only set if the Syslog message was in RFC 5424 format.
syslogmsgid
Contains the msgid header field, only set if the Syslog message was in RFC 5424 format.
syslogstructdata
Contains the structdata header field (in raw format), only set if the Syslog message was in RFC 5424 format.
syslogprifac
Contains combined syslog facility and priority useful to build your own custom syslog headers