We have been testing Elasticsearch for a while. Our ES cluster was on
AWS. We installed Bigdesk, Marvel, Thrift, EC2 Discovery plugins. There
were 5 instance (1 load balancer, 4 data node) and all of them were
Yesterday, We have received an e-mail from AWS. They said one of our
instance in ES cluster was making DOS attacks from UDP port 80.
We did not restrict ports, because it was an test cluster. It can be
main cause of this problem, but I still want to ask if there is a known
bug (in ES or modules or plugins) that cause something like this or if
there is anyone who have seen some kind of similar problem.
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