# Good filter/output for Tomcat logs

**URL:** <https://discuss.elastic.co/t/good-filter-output-for-tomcat-logs/79109>\
**Category:** Logstash\
**Created:** [March 18, 2017, 2:56am UTC](https://discuss.elastic.co/t/good-filter-output-for-tomcat-logs/79109 "2017-03-18T02:56:58Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![alfredo.deluca](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alfredo.deluca/32/95381_2.png) [@alfredo.deluca](https://discuss.elastic.co/u/alfredo.deluca)\
**Post date:** [March 18, 2017, 2:56am UTC](https://discuss.elastic.co/t/good-filter-output-for-tomcat-logs/79109/1 "2017-03-18T02:56:58Z")

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Hi all. ELK newbie here.  
We have tomcat6 and I'd like to filter catalina.out to 2 different alarming tools Nagios and Zabbix.

Any suggestions/clue/docs?  
Appreciated  
Alfredo

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**Author:** ![eperry](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eperry/32/551_2.png) [@eperry](https://discuss.elastic.co/u/eperry)\
**Post date:** [March 18, 2017, 1:03pm UTC](https://discuss.elastic.co/t/good-filter-output-for-tomcat-logs/79109/2 "2017-03-18T13:03:50Z")

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Well nagios is a polling type of Monitoring, (unless you have added some customization to receive data) but there is a Nagios and zabix

[https://www.elastic.co/guide/en/logstash/current/plugins-outputs-nagios.html](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-nagios.html)  
[https://www.elastic.co/guide/en/logstash/current/plugins-outputs-zabbix.html](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-zabbix.html)

Take a look at the other kind of outputs as well, there are all kinds of ways you can send / write data

Another option is to have the data go in to elastic search and write a CURL (Or language of choice, to query the data) and alert based on the output

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<div class="post-metadata">

**Author:** ![alfredo.deluca](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alfredo.deluca/32/95381_2.png) [@alfredo.deluca](https://discuss.elastic.co/u/alfredo.deluca)\
**Post date:** [March 20, 2017, 12:28pm UTC](https://discuss.elastic.co/t/good-filter-output-for-tomcat-logs/79109/3 "2017-03-20T12:28:09Z")

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Thanks Ed.  
I went through those links already.  
Thanks anyway

/Alfredo

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 17, 2017, 12:28pm UTC](https://discuss.elastic.co/t/good-filter-output-for-tomcat-logs/79109/4 "2017-04-17T12:28:48Z")

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Closed on April 17, 2017, 12:28pm UTC

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