Is Port 1521 Secure?
Port 1521 is the default client connections port, however, you can configure another TCP port via the Oracle configuration and administration tools. The default SSL port for secured Oracle client connections to the database via the Oracle’s SQL*Net protocol. Open this port if you need secure connection.
Does Oracle encrypt data in transit?
Together with other methods of security such as Oracle Cloud Infrastructure Vault (KMS) and File Storage’s encryption-at-rest, in-transit encryption provides for end-to-end security. For general information about getting started with file systems, see Overview of File Storage.
How to verify Oracle Net network encryption and integrity?
For the current session, it is easier to select SYS_CONTEXT (‘USERENV’,’NETWORK_PROTOCOL’) from dual Using Network Encryption and Integrity (in the Oracle Database Cloud Service documentation) shows the reason for your observation:
How can I verify the use of Oracle Net Services?
You can verify the use of native Oracle Net Services encryption and integrity by connecting to your Oracle database and examining the network service banner entries associated with each connection.
How to encrypt network traffic between Oracle servers?
To encrypt network traffic between the Oracle Database server and potentially hundreds or thousands of Oracle clients, you only need to enable encryption on the server. The purpose of a secure cryptosystem is to convert plaintext data into unintelligible ciphertext based on a key, in such a way that it is very hard…
How is encryption used in Oracle Cloud Services?
To secure connections to your Oracle Database Cloud Service databases, you can use native Oracle Net Services encryption and integrity capabilities. Encryption of network data provides data privacy so that unauthorized parties are not able to view data as it passes over the network.