Hi there all, i started with Logstash the other day and currently getting to know the tool. I have a situation here. Consider the below Baraccuda FW log entry 2018 01 30 13:12:21 Security +01:00 Block: type=FWD|proto=UDP|srcIF=eth0|srcIP=10.17.34.12|srcPort=54915|srcMAC=18:db:f2:13:ca:9c|dstIP=10…

Personally I would approach a log like this using dissect { mapping => { "message" => "%{[@metadata][ts]} %{+[@metadata][ts]} %{+[@metadata][ts]} %{+[@metadata][ts]} %{word1} %{word2} %{word3} %{[@metadata][restOfLine]}" } } date { match => [ "[@metadata][ts]", "YYYY MM dd HH:mm:ss" ] } …

Is positive lookbehind supported in Logstash at all?

Elastic Stack Logstash

Badger March 17, 2021, 3:38pm 4

I never use anything other than grok to develop grok patterns because the online grok debugger and even kibana can interpret patterns differently to grok. See here for more detail.

1 Like

Topic		Replies	Views
Positive lookahead not working Logstash	4	332	January 13, 2021
Conditional forwarding in logstash.conf not working Logstash	8	461	December 25, 2018
Regex performance with logstash using more general match Logstash	10	1212	December 1, 2020
Grok pattern matching in debugger but not on logstash Logstash	4	250	July 6, 2022
Grok Pattern Logstash	5	684	September 16, 2021

Is positive lookbehind supported in Logstash at all?

Related Topics