we setup searchguard and we encountered these WARNINGS in the elasticsearch.log :
“Someone speaks plaintext instead of ssl, will close the channel”
We know ES nodes speak “cyphered” between them, and we have java programs connected as transport client too.
All seems OK, java programs work fine, ES work fine too. We success in connecting people, java programs.
We tired to find who speaks plain text unsuccessfully, that’s why I write here to find some help.
Is there a debug mode or something like that which could be turned on to trace IP, or Caller ?
Thanks in advance for your help.