Location
/patterndb
Description
The container element of the pattern database.
Attributes
-
version: The schema version of the pattern database. The current version is 4.
-
pubdate: The publication date of the XML file.
/patterndb
The container element of the pattern database.
version: The schema version of the pattern database. The current version is 4.
pubdate: The publication date of the XML file.
/patterndb/ruleset
A container element to group log patterns for an application or program. A <patterndb> element may contain any number of <ruleset> elements.
name: The name of the application. Note that the function of this attribute is to make the database more readable, syslog-ng uses the <pattern> element to identify the applications sending log messages.
id: A unique ID of the application, for example, the md5 sum of the name attribute.
description: OPTIONAL — A description of the ruleset or the application.
url: OPTIONAL — An URL referring to further information about the ruleset or the application.
rule_urls: OPTIONAL — To list multiple URLs referring to further information about the ruleset or the application, enclose the <url> elements into an <urls> element.
<ruleset name='su' id='480de478-d4a6-4a7f-bea4-0c0245d361e1'>
A container element. A <patterns> element may contain any number of <pattern> elements.
N/A
pattern: The name of the application — syslog-ng matches this value to the ${PROGRAM} header of the syslog message to find the rulesets applicable to the syslog message.
Specifying multiple patterns is useful if two or more applications have different names (that is, different ${PROGRAM} fields), but otherwise send identical log messages.
It is not necessary to use multiple patterns if only the end of the ${PROGRAM} fields is different, use only the beginning of the ${PROGRAM} field as the pattern. For example, the Postfix email server sends messages using different process names, but all of them begin with the postfix string.
You can also use parsers in the program pattern if needed, and use the parsed results later. For example: <pattern>postfix\@ESTRING:.postfix.component:[@</pattern>
NOTE: If the <pattern> element of a ruleset is not specified, syslog-ng PE will use this ruleset as a fallback ruleset: it will apply the ruleset to messages that have an empty PROGRAM header, or if none of the program patterns matched the PROGRAM header of the incoming message.
<patterns>
<pattern>firstapplication</pattern>
<pattern>otherapplication</pattern>
</patterns>
Using parsers in the program pattern:
<pattern>postfix\@ESTRING:.postfix.component:[@</pattern>
A container element for the rules of the ruleset.
N/A
<rules>
<rule provider='me' id='182437592347598' class='system'>
<patterns>
<pattern>Accepted @QSTRING:SSH.AUTH_METHOD: @ for@QSTRING:SSH_USERNAME: @from\ @QSTRING:SSH_CLIENT_ADDRESS: @port @NUMBER:SSH_PORT_NUMBER:@ ssh2</pattern>
</patterns>
</rule>
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