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USERNAME [a-zA-Z0-9._-]+ USER %{USERNAME} EMAILLOCALPART [a-zA-Z][a-zA-Z0-9_.+-=:]+ EMAILADDRESS %{EMAILLOCALPART}@%{HOSTNAME} INT (?:[+-]?(?:[0-9]+)) BASE10NUM (?<![0-9.+-])(?>[+-]?(?:(?:[0-9]+(?:\.[0-9]+)?)|(?:\.[0-9]+))) NUMBER (?:%{BASE10NUM}) BASE16NUM (?<![0-9A-Fa-f])(?:[+-]?(?:0x)?(?:[0-9A-Fa-f]+)) BASE16FLOAT \b(?<![0-9A-Fa-f.])(?:[+-]?(?:0x)?(?:(?:[0-9A-Fa-f]+(?:\.[0-9A-Fa-f]*)?)|(?:\.[0-9A-Fa-f]+)))\b POSINT \b(?:[1-9][0-9]*)\b NONNEGINT \b(?:[0-9]+)\b WORD \b\w+\b NOTSPACE \S+ SPACE \s* DATA .*? GREEDYDATA .* QUOTEDSTRING (?>(?<!\\)(?>"(?>\\.|[^\\"]+)+"|""|(?>'(?>\\.|[^\\']+)+')|''|(?>`(?>\\.|[^\`]+)+`)|``)) UUID [A-Fa-f0-9]{8}-(?:[A-Fa-f0-9]{4}-){3}[A-Fa-f0-9]{12} # URN, allowing use of RFC 2141 section 2.3 reserved characters URN urn:[0-9A-Za-z][0-9A-Za-z-]{0,31}:(?:%[0-9a-fA-F]{2}|[0-9A-Za-z()+,.:=@;$_!*'/?#-])+ # Networking MAC (?:%{CISCOMAC}|%{WINDOWSMAC}|%{COMMONMAC}) CISCOMAC (?:(?:[A-Fa-f0-9]{4}\.){2}[A-Fa-f0-9]{4}) WINDOWSMAC (?:(?:[A-Fa-f0-9]{2}-){5}[A-Fa-f0-9]{2}) COMMONMAC (?:(?:[A-Fa-f0-9]{2}:){5}[A-Fa-f0-9]{2}) IPV6 ((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)? IPV4 (?<![0-9])(?:(?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5])[.](?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5])[.](?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5])[.](?:[0-1]?[0-9]{1,2}|2[0-4][0-9]|25[0-5]))(?![0-9]) IP (?:%{IPV6}|%{IPV4}) HOSTNAME \b(?:[0-9A-Za-z][0-9A-Za-z-]{0,62})(?:\.(?:[0-9A-Za-z][0-9A-Za-z-]{0,62}))*(\.?|\b) IPORHOST (?:%{IP}|%{HOSTNAME}) HOSTPORT %{IPORHOST}:%{POSINT} # paths PATH (?:%{UNIXPATH}|%{WINPATH}) UNIXPATH (/([\w_%!$@:.,+~-]+|\\.)*)+ TTY (?:/dev/(pts|tty([pq])?)(\w+)?/?(?:[0-9]+)) WINPATH (?>[A-Za-z]+:|\\)(?:\\[^\\?*]*)+ URIPROTO [A-Za-z]([A-Za-z0-9+\-.]+)+ URIHOST %{IPORHOST}(?::%{POSINT:port})? # uripath comes loosely from RFC1738, but mostly from what Firefox # doesn't turn into %XX URIPATH (?:/[A-Za-z0-9$.+!*'(){},~:;=@#%&_\-]*)+ #URIPARAM \?(?:[A-Za-z0-9]+(?:=(?:[^&]*))?(?:&(?:[A-Za-z0-9]+(?:=(?:[^&]*))?)?)*)? URIPARAM \?[A-Za-z0-9$.+!*'|(){},~@#%&/=:;_?\-\[\]<>]* URIPATHPARAM %{URIPATH}(?:%{URIPARAM})? URI %{URIPROTO}://(?:%{USER}(?::[^@]*)?@)?(?:%{URIHOST})?(?:%{URIPATHPARAM})? # Months: January, Feb, 3, 03, 12, December MONTH \b(?:[Jj]an(?:uary|uar)?|[Ff]eb(?:ruary|ruar)?|[Mm](?:a|ä)?r(?:ch|z)?|[Aa]pr(?:il)?|[Mm]a(?:y|i)?|[Jj]un(?:e|i)?|[Jj]ul(?:y)?|[Aa]ug(?:ust)?|[Ss]ep(?:tember)?|[Oo](?:c|k)?t(?:ober)?|[Nn]ov(?:ember)?|[Dd]e(?:c|z)(?:ember)?)\b MONTHNUM (?:0?[1-9]|1[0-2]) MONTHNUM2 (?:0[1-9]|1[0-2]) MONTHDAY (?:(?:0[1-9])|(?:[12][0-9])|(?:3[01])|[1-9]) # Days: Monday, Tue, Thu, etc... DAY (?:Mon(?:day)?|Tue(?:sday)?|Wed(?:nesday)?|Thu(?:rsday)?|Fri(?:day)?|Sat(?:urday)?|Sun(?:day)?) # Years? YEAR (?>\d\d){1,2} HOUR (?:2[0123]|[01]?[0-9]) MINUTE (?:[0-5][0-9]) # '60' is a leap second in most time standards and thus is valid. SECOND (?:(?:[0-5]?[0-9]|60)(?:[:.,][0-9]+)?) TIME (?!<[0-9])%{HOUR}:%{MINUTE}(?::%{SECOND})(?![0-9]) # datestamp is YYYY/MM/DD-HH:MM:SS.UUUU (or something like it) DATE_US %{MONTHNUM}[/-]%{MONTHDAY}[/-]%{YEAR} DATE_EU %{MONTHDAY}[./-]%{MONTHNUM}[./-]%{YEAR} ISO8601_TIMEZONE (?:Z|[+-]%{HOUR}(?::?%{MINUTE})) ISO8601_SECOND (?:%{SECOND}|60) TIMESTAMP_ISO8601 %{YEAR}-%{MONTHNUM}-%{MONTHDAY}[T ]%{HOUR}:?%{MINUTE}(?::?%{SECOND})?%{ISO8601_TIMEZONE}? DATE %{DATE_US}|%{DATE_EU} DATESTAMP %{DATE}[- ]%{TIME} TZ (?:[APMCE][SD]T|UTC) DATESTAMP_RFC822 %{DAY} %{MONTH} %{MONTHDAY} %{YEAR} %{TIME} %{TZ} DATESTAMP_RFC2822 %{DAY}, %{MONTHDAY} %{MONTH} %{YEAR} %{TIME} %{ISO8601_TIMEZONE} DATESTAMP_OTHER %{DAY} %{MONTH} %{MONTHDAY} %{TIME} %{TZ} %{YEAR} DATESTAMP_EVENTLOG %{YEAR}%{MONTHNUM2}%{MONTHDAY}%{HOUR}%{MINUTE}%{SECOND} # Syslog Dates: Month Day HH:MM:SS SYSLOGTIMESTAMP %{MONTH} +%{MONTHDAY} %{TIME} PROG [\x21-\x5a\x5c\x5e-\x7e]+ SYSLOGPROG %{PROG:program}(?:\[%{POSINT:pid}\])? SYSLOGHOST %{IPORHOST} SYSLOGFACILITY <%{NONNEGINT:facility}.%{NONNEGINT:priority}> HTTPDATE %{MONTHDAY}/%{MONTH}/%{YEAR}:%{TIME} %{INT} # Shortcuts QS %{QUOTEDSTRING} # Log formats SYSLOGBASE %{SYSLOGTIMESTAMP:timestamp} (?:%{SYSLOGFACILITY} )?%{SYSLOGHOST:logsource} %{SYSLOGPROG}: # Log Levels LOGLEVEL ([Aa]lert|ALERT|[Tt]race|TRACE|[Dd]ebug|DEBUG|[Nn]otice|NOTICE|[Ii]nfo|INFO|[Ww]arn?(?:ing)?|WARN?(?:ING)?|[Ee]rr?(?:or)?|ERR?(?:OR)?|[Cc]rit?(?:ical)?|CRIT?(?:ICAL)?|[Ff]atal|FATAL|[Ss]evere|SEVERE|EMERG(?:ENCY)?|[Ee]merg(?:ency)?) |
https://github.com/logstash-plugins/logstash-patterns-core/blob/master/patterns/grok-patterns
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