title: ElasticSearch - Search by IP[regex]
body: <p>I have Kibana and ES. I have many indexes. I am using message field in ElasticSearch. My goal is to mask all IP addresses, which I already do using Logstash.</p>
  
  <p>Now, given the fact there are many different indexes, and also different log types, I would like to run either Kibana or ES query for any occurence of IP. Just in case, that I missed any of them. Also, I would like to do it for email format as well.</p>
  
  <p>Question is, how can I run IP/email regex search on ElasticSearch or Kibana?</p>
  
  <p>Message field is string type, and is indexed.</p>