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** [tickets:#2613] dtm: Protect against inter-cluster communication**
**Status:** unassigned
**Milestone:** 5.17.10
**Created:** Thu Oct 05, 2017 04:07 PM UTC by Anders Widell
**Last Updated:** Thu Oct 05, 2017 04:07 PM UTC
**Owner:** nobody
With the unicast support, there is a possibility that nodes belonging to two
separate clusters will connect with each other. We can add protection against
this by including the DNS domain name in the node discovery message, and reply
with a NACK to the sender if the domain names do not match. When the sender
receives the NACK message, it will remove that IP address from its list of
peers.
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