Setting TLS 1.3 Cipher in mysqldump

The mysqldump command is used to create backups of MySQL databases. When using TLS (Transport Layer Security) connections, you can specify the TLS 1.3 cipher suite to be used during the dump process with the --tls-ciphersuites=name option.

Setting TLS 1.3 Cipher in mysqldump:

Example 1: Setting the TLS 1.3 cipher suite to TLS_AES_256_GCM_SHA384:

    mysqldump --tls-ciphersuites=TLS_AES_256_GCM_SHA384 -u username -p database_name > backup.sql
    

This command specifies that only the TLS_AES_256_GCM_SHA384 cipher suite should be used for the TLS connection when dumping the database database_name. Replace username with your MySQL username. After execution, verify by checking the backup.sql file for the dumped data.

Example 2: Using a different cipher suite, TLS_CHACHA20_POLY1305_SHA256:

    mysqldump --tls-ciphersuites=TLS_CHACHA20_POLY1305_SHA256 -u username -p database_name > backup2.sql
    

Here, the --tls-ciphersuites option specifies the use of TLS_CHACHA20_POLY1305_SHA256 for securing the connection. The output will be stored in backup2.sql. Verify the output file to ensure the dump was successful.

Example 3: Using multiple cipher suites, TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384:

    mysqldump --tls-ciphersuites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384 -u username -p database_name > backup3.sql
    

This command specifies a list of cipher suites separated by commas. MySQL will negotiate the best cipher suite available from this list. Check backup3.sql after execution to verify the backup.

Example 4: Using the default cipher suite (MySQL’s default behavior):

    mysqldump -u username -p database_name > backup4.sql
    

If the --tls-ciphersuites option is not specified, MySQL will use its default TLS configuration. Verify the dump by inspecting backup4.sql for the database content.

Verification Steps:
After executing each mysqldump command, follow these steps to verify the backup:

1. Open the output file (e.g., backup.sql, backup2.sql, etc.) using a text editor.
2. Confirm that the file contains SQL statements representing the dumped database content.
3. Check for any errors or warnings in the output of the command execution.

By carefully examining the dumped file, you can ensure that the mysqldump command executed successfully and that the specified TLS 1.3 cipher suite was applied as intended.

Also check similar articles.

Configuring SSL FIPS Mode in mysqldump (OpenSSL Only)
Setting TLS Version in mysqldump
Setting Certificate Revocation List Path in mysqldump
Setting Certificate Revocation List in mysqldump
Setting X509 Key for SSL in mysqldump