TLS Introduction

Overview

Transport Layer Security (TLS) is a widely adopted security protocol designed to promote privacy and data security for Internet communications.

MatrixOne uses non-encrypted connections by default and supports enabling encrypted connections based on the TLS protocol. The supported protocol versions are TLS 1.0, TLS 1.1, and TLS 1.2.

  • Disable TLS encrypted connection (default): Use the username and password to connect to MatrixOne directly.

  • Enable TLS encrypted connection: Encrypted connection support needs to be enabled on the MatrixOne server, and encrypted connection should be specified on the client side. You can follow the instructions below to enable a TLS secure connection.

This document will guide you how to enable TLS secure connection.

Main steps of TLS secure connection configuration:

  1. First, enable TLS in MatrixOne.

  2. Then, configure the MySQL client security connection parameters.

After completing the configuration of these two main steps, a TLS secure connection can be established, as detailed below:

Step 1: Enable MatrixOne’s TLS support

  1. Generate certificate and key: MatrixOne does not yet support loading a private key protected by a password, so a private key file without a password must be provided. Certificates and keys can be issued and generated using OpenSSL. It is recommended to use the tool mysql_ssl_rsa_setup that comes with MySQL to generate quickly:

    1. #Check your local MySQL client installation directory
    2. ps -ef|grep mysql
    3. #Go to the installation directory of your local MySQL client
    4. cd /usr/local/mysql/bin
    5. #Generate certificate and key
    6. ./mysql_ssl_rsa_setup --datadir=<yourpath>
    7. #Check your generated pem file
    8. ls <yourpath>
    9. ├── ca-key.pem
    10. ├── ca.pem
    11. ├── client-cert.pem
    12. ├── client-key.pem
    13. ├── private_key.pem
    14. ├── public_key.pem
    15. ├── server-cert.pem
    16. └── server-key.pem

    Note: <yourpath> in the above code is the local directory path where you need to store the generated certificate and key files.

  2. Enter the cn.toml configuration file in your local MatrixOne file directory path matrixone/etc/launch-tae-CN-tae-DN/:

    You can also use the vim command to open the cn. toml file directly in the terminal

    1. vim $matrixone/etc/launch-tae-CN-tae-DN/cn.toml

    Copy and paste the code below into the configuration file:

    1. [cn.frontend]
    2. #default is false. With true. Server will support tls
    3. enableTls = true
    5. #default is ''. Path of file that contains X509 certificate in PEM format for client
    6. tlsCertFile = "<yourpath>/server-cert.pem"
    8. #default is ''. Path of file that contains X509 key in PEM format for client
    9. tlsKeyFile = "<yourpath>/server-key.pem"
    11. #default is ''. Path of file that contains list of trusted SSL CAs for client
    12. tlsCaFile = "<yourpath>/ca.pem"

    Note: <yourpath> in the above code is the local directory path where you need to store the generated certificate and key files

    In the above code, the configuration parameters are explained as follows:

    ParametersDescription
    enableTlsBool, enable TLS support on the MatrixOne server.
    tlsCertFileSpecify the SSL certificate file path
    tlsKeyFileSpecify the private key corresponding to the certificate file
    tlsCaFileOptional, specify the trusted CA certificate file path

    Note: If you use Docker to install and launch MatrixOne, before modifying the configuration file, you need to mount the configuration file first and then modify it. For more information, see Mount directory to Docker container.

  3. Verify that MatrixOne’s SSL is enabled.

    ① Use the MySQL client to connect to MatrixOne:

    1. mysql -h 127.0.0.1 -P 6001 -udump -p111
    3. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

    ② Use the Status command to check whether SSL is enabled.

    Successfully enabled, the code example is as follows; you can see that the SSL status is Cipher in use is TLS_AES_128_GCM_SHA256:

    1. mysql> status
    2. mysql  Ver 8.0.28 for macos11 on arm64 (MySQL Community Server - GPL)
    4. Connection id:          1001
    5. Current database:
    6. Current user:           dump@0.0.0.0
    7. SSL:                    Cipher in use is TLS_AES_128_GCM_SHA256
    8. Current pager:          stdout
    9. Using outfile:          ''
    10. Using delimiter:        ;
    11. Server version:         0.6.0 MatrixOne
    12. Protocol version:       10
    13. Connection:             127.0.0.1 via TCP/IP
    14. ERROR 20101 (HY000): internal error: the system variable does not exist
    15. ERROR 2014 (HY000): Commands out of sync; you can't run this command now
    16. Client characterset:    utf8mb4
    17. Server characterset:    utf8mb4
    18. TCP port:               6001
    19. Binary data as:         Hexadecimal
    20. --------------

    If it is not enabled successfully, the returned result is as follows; you can see that the SSL status is Not in use; you need to recheck whether the local directory path (namely ) of the certificate and key file you configured in the above steps is correct:

    1. mysql> status;
    2. /usr/local/mysql/bin/mysql  Ver 8.0.30 for macos12 on arm64 (MySQL Community Server - GPL)
    4. Connection id:      1009
    5. Current database:   test
    6. Current user:       root@0.0.0.0
    7. SSL:            Not in use
    8. Current pager:      stdout
    9. Using outfile:      ''
    10. Using delimiter:    ;
    11. Server version:     8.0.30-MatrixOne-v0.6.0 MatrixOne
    12. Protocol version:   10
    13. Connection:     127.0.0.1 via TCP/IP
    14. Server characterset:    utf8mb4
    15. Db     characterset:    utf8mb4
    16. Client characterset:    utf8mb4
    17. Conn.  characterset:    utf8mb4
    18. TCP port:       6001
    19. Binary data as:     Hexadecimal
    20. --------------

After completing the above steps, MatrixOne’s TLS is enabled.

Step 2: Configure the parameters of MySQL client

When a MySQL client connects to Matrix One Server, the encrypted connection behavior needs to be specified by the --ssl-mode parameter, such as:

  1. mysql -h 127.0.0.1 -P 6001 -udump -p111 --ssl-mode=PREFFERED

The value types of ssl mode are as follows:

ssl-mode valueDescription
DISABLEDEstablish an encrypted connection without SSL/TLS, synonymous with skip-ssl.
PREFFEREDThe default behavior is first to establish an encrypted connection using SSL/TLS; if it cannot be established, it will try to establish a non-SSL/TLS connection.
REQUIREDOnly SSL/TLS will be attempted to establish an encrypted connection, and if the connection cannot be established, the connection will fail.
VERIFY_CAAs with the REQUIRED behavior, and also verifies that the CA certificate on the Server side is valid.
VERIFY_IDENTITYIt acts like VERIFY_CA and verifies that the host in the server-side CA certificate is the same as the hostname for the actual connection.

Note

When the client specifies --ssl-mode=VERIFY_CA, it needs to use --ssl-ca to specify the CA certificate; If --ssl-mode=VERIFY_IDENTITY is specified on the client, you need to specify the CA certificate. You need to use --ssl-key to specify the client private key and --ssl-cert to specify the client certificate.