How to config logstash email output plugin to send email alert.
Ensure postfix or sendmail is configured on the logstash server, refer to another post here which config postfix with gmail smtp to send email
Create a new logstash conf file in /etc/logstash/conf.d and add below content
Next restart logstash
Finally test with telnet in another terminal on the same vm
In a few seconds the actual “[email protected]” should receive an email sent by logstash with the subject and body matching what’s configured above.TOP▲