Delete syslog fields from logstream

Hi there,

Sorry if this question is being stupid, but I'm trying to get something weitrd working... the deal is I have some Firewalls which send some data to ElasticSearch via LogStash. all works fine, except the only format I can stream is Syslog format that shows up like tis on Elasticsearch:


What I try to achieve is that I only get the LOG-CONTENT out of the whole string, and then use grok to parse the log content and make custom indexes via regex.

The latter I managed to get running, but I have a lot of exttra data with the Syslog format's fields like timestamp, host, port and so on. I have all this, but was not able to filter out just the message.

Any tipps are highly appreciated!

Thanks in advance!

As part of your Logstash pipeline, you can remove unwanted fields, e.g. using the mutate plugin.

1 Like

Oh man... I was so focused on the removing of stuff, that I forgot about the actual plugin doing it... the mutate was missing... sorry for being derp... and many thanks for pointing to the right direction!

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