Are my cluster transactions/messages encrypted.
For all versions prior to 3.3, there is no encryption done specifically on the contents being transferred. Furthermore, since it doesn’t use REST or Bolt, there is no SSL/https configuration either. Transactions are propagated via transaction logs, which are a binary representation of the data and are not human-readable. However, that does not equate to encryption.
A common way to solve this problem is to implement VPN tunneling between instances, such that the data is transferred through a secure tunnel.
Commencing with 3.3 we would recommend Intra-Cluster Encryption
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