fedora-docs-l10n/fedora-system-administrat/rawhide/pages/monitoring-and-automation/Viewing_and_Managing_Log_Files

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	indexterm:[rsyslog,configuration] The main configuration file for [application]rsyslog is `/etc/rsyslog.conf`. Here, you can specify _global directives_, _modules_, and _rules_ that consist of _filter_ and _action_ parts. Also, you can add comments in the form of text following a hash sign (`#`).
	Filters	필터
	indexterm:[rsyslog,filters] A rule is specified by a filter part, which selects a subset of syslog messages, and an action part, which specifies what to do with the selected messages. To define a rule in your `/etc/rsyslog.conf` configuration file, define both, a filter and an action, on one line and separate them with one or more spaces or tabs.
	[application]rsyslog offers various ways to filter syslog messages according to selected properties. The available filtering methods can be divided into Facility/Priority-based, Property-based, and Expression-based filters.
	Facility/Priority-based filters	기능/우선순위-기반 필터
	The most used and well-known way to filter syslog messages is to use the facility/priority-based filters which filter syslog messages based on two conditions: _facility_ and _priority_ separated by a dot. To create a selector, use the following syntax:
	_FACILITY_._PRIORITY_	_시설_._우선순위_
	where:	장소:
	_FACILITY_ specifies the subsystem that produces a specific syslog message. For example, the [command]#mail# subsystem handles all mail-related syslog messages. _FACILITY_ can be represented by one of the following keywords (or by a numerical code): [command]#kern# (0), [command]#user# (1), [command]#mail# (2), [command]#daemon# (3), [command]#auth# (4), [command]#syslog# (5), [command]#lpr# (6), [command]#news# (7), [command]#uucp# (8), [command]#cron# (9), [command]#authpriv# (10), [command]#ftp# (11), [command]#ntp# (12), [command]#logaudit# (13), [command]#logalert# (14), [command]#clock# (15), and [command]#local0# through [command]#local7# (16 - 23).
	_PRIORITY_ specifies a priority of a syslog message. _PRIORITY_ can be represented by one of the following keywords (or by a number): [command]#debug# (7), [command]#info# (6), [command]#notice# (5), [command]#warning# (4), [command]#err# (3), [command]#crit# (2), [command]#alert# (1), and [command]#emerg# (0).
	The aforementioned syntax selects syslog messages with the defined or higher priority. By preceding any priority keyword with an equal sign (`=`), you specify that only syslog messages with the specified priority will be selected. All other priorities will be ignored. Conversely, preceding a priority keyword with an exclamation mark (`!`) selects all syslog messages except those with the defined priority.
	In addition to the keywords specified above, you may also use an asterisk (`*`) to define all facilities or priorities (depending on where you place the asterisk, before or after the comma). Specifying the priority keyword `none` serves for facilities with no given priorities. Both facility and priority conditions are case-insensitive.
	To define multiple facilities and priorities, separate them with a comma (`,`). To define multiple selectors on one line, separate them with a semi-colon (`;`). Note that each selector in the selector field is capable of overwriting the preceding ones, which can exclude some priorities from the pattern.
	Facility/Priority-based Filters	기능/우선순위-기반 필터
	The following are a few examples of simple facility/priority-based filters that can be specified in `/etc/rsyslog.conf`. To select all kernel syslog messages with any priority, add the following text into the configuration file:
	kern.*	kern.*
	To select all mail syslog messages with priority [command]#crit# and higher, use this form:	우선순위 [command]#crit#와 보다 높은 경우에 모든 전자우편 syslog 메시지를 선택하려면, 이와 같은 형식을 사용하세요:
	mail.crit	mail.crit
	To select all cron syslog messages except those with the [command]#info# or [command]#debug# priority, set the configuration in the following form:	이들 [command]#info# 또는 [command]#debug# 우선순위를 제외한 모든 cron syslog 메세지를 선택하려면, 다음 형식에서 구성을 설정합니다:
	cron.!info,!debug	cron.!정보,!디버그
	Property-based filters	속성-기반의 필터
	Property-based filters let you filter syslog messages by any property, such as `timegenerated` or `syslogtag`. For more information on properties, see xref:Viewing_and_Managing_Log_Files.adoc#brid-properties[Properties]. You can compare each of the specified properties to a particular value using one of the compare-operations listed in xref:Viewing_and_Managing_Log_Files.adoc#table-compare-operations[Property-based compare-operations]. Both property names and compare operations are case-sensitive.
	Property-based filter must start with a colon (`:`). To define the filter, use the following syntax:	속성-기반 필터는 그침표(`:`)와 함께 시작되어야 합니다. 필터를 정의하려면, 다음 구문을 사용하세요:
	:pass:quotes[_PROPERTY_], [!]pass:quotes[_COMPARE_OPERATION_], "pass:quotes[_STRING_]"	:pass:quotes[_속성_], [!]pass:quotes[_동작_비교_], "pass:quotes[_문자열_]"
	The _PROPERTY_ attribute specifies the desired property.	_PROPERTY_ 속성은 원하는 속성을 지정합니다.
	The optional exclamation point (`!`) negates the output of the compare-operation. Other Boolean operators are currently not supported in property-based filters.
	The _COMPARE_OPERATION_ attribute specifies one of the compare-operations listed in xref:Viewing_and_Managing_Log_Files.adoc#table-compare-operations[Property-based compare-operations].
	The _STRING_ attribute specifies the value that the text provided by the property is compared to. This value must be enclosed in quotation marks. To escape certain character inside the string (for example a quotation mark (`"`)), use the backslash character (`\`).
	Property-based compare-operations	속성-기반의 비교-동작
	\|Compare-operation\|Description \|`contains`\|Checks whether the provided string matches any part of the text provided by the property. To perform case-insensitive comparisons, use `contains_i`. \|`isequal`\|Compares the provided string against all of the text provided by the property. These two values must be exactly equal to match. \|`startswith`\|Checks whether the provided string is found exactly at the beginning of the text provided by the property. To perform case-insensitive comparisons, use `startswith_i`. \|`regex`\|Compares the provided POSIX BRE (Basic Regular Expression) against the text provided by the property. \|`ereregex`\|Compares the provided POSIX ERE (Extended Regular Expression) regular expression against the text provided by the property. \|`isempty`\|Checks if the property is empty. The value is discarded. This is especially useful when working with normalized data, where some fields may be populated based on normalization result.	\|비교-동작\|설명 \|`contains`\|Checks whether the provided string matches any part of the text provided by the property. To perform case-insensitive comparisons, use `contains_i`. \|`isequal`\|Compares the provided string against all of the text provided by the property. These two values must be exactly equal to match. \|`startswith`\|Checks whether the provided string is found exactly at the beginning of the text provided by the property. To perform case-insensitive comparisons, use `startswith_i`. \|`regex`\|Compares the provided POSIX BRE (Basic Regular Expression) against the text provided by the property. \|`ereregex`\|Compares the provided POSIX ERE (Extended Regular Expression) regular expression against the text provided by the property. \|`isempty`\|Checks if the property is empty. The value is discarded. This is especially useful when working with normalized data, where some fields may be populated based on normalization result.
	Property-based Filters	속성-기반의 필터

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