When using MySQL’s `mysqldump` utility to create backups, it’s essential to secure data transmission using SSL encryption. One crucial option for this is `–ssl-key=name`, which allows specifying the X509 key file required for SSL communication during the dump process.
Here are several examples demonstrating the use of `mysqldump` with the `–ssl-key` option:
Example 1: Dumping a database with SSL encryption using a specific key file:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p database_name > backup.sql
This command exports the `database_name` database to `backup.sql`, encrypting the connection using the X509 key file `client-key.pem`. To verify, check the presence of `backup.sql` and review its contents.
Example 2: Dumping all databases with SSL and specifying the key:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --all-databases > alldatabases_backup.sql
Here, `mysqldump` backs up all databases to `alldatabases_backup.sql` while encrypting using `client-key.pem`. Verify by inspecting `alldatabases_backup.sql` after execution.
Example 3: Dumping with SSL and including table structure only:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --no-data database_name > structure_only.sql
This command exports only the structure (no data) of `database_name` to `structure_only.sql`, securing the connection with `client-key.pem`. Verify by examining `structure_only.sql` for schema definitions.
Example 4: Dumping a single table with SSL and gzip compression:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p database_name table_name | gzip > table_backup.sql.gz
This command dumps `table_name` from `database_name`, compresses it using gzip (`table_backup.sql.gz`), and secures the connection using `client-key.pem`. Verify by unzipping `table_backup.sql.gz` and inspecting its contents.
Example 5: Dumping with SSL and excluding certain tables:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --ignore-table=database_name.table1 --ignore-table=database_name.table2 database_name > backup_exclude.sql
This command excludes `table1` and `table2` from `database_name` while dumping the rest to `backup_exclude.sql`, utilizing SSL encryption with `client-key.pem`. Verify by reviewing `backup_exclude.sql` after execution.
Example 6: Dumping with SSL and specifying row-based inserts:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --skip-extended-insert database_name > row_based_backup.sql
This command dumps `database_name` to `row_based_backup.sql`, using row-based inserts for data and securing the connection with `client-key.pem`. Verify by checking `row_based_backup.sql` for row-based insert statements.
Example 7: Dumping with SSL and including extended insert statements:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --extended-insert=FALSE database_name > extended_insert_backup.sql
This command exports `database_name` to `extended_insert_backup.sql`, including extended insert statements, and securing the connection with `client-key.pem`. Verify by examining `extended_insert_backup.sql` for extended insert syntax.
Example 8: Dumping with SSL and specifying maximum allowed packet size:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --max_allowed_packet=32M database_name > large_packet_backup.sql
This command dumps `database_name` to `large_packet_backup.sql`, allowing a maximum packet size of 32MB for secure transmission using `client-key.pem`. Verify by reviewing `large_packet_backup.sql` for data size and contents.
Example 9: Dumping with SSL and excluding triggers:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --skip-triggers database_name > no_triggers_backup.sql
This command exports `database_name` to `no_triggers_backup.sql`, excluding triggers and securing the connection with `client-key.pem`. Verify by checking `no_triggers_backup.sql` for trigger exclusion and data consistency.
Example 10: Dumping with SSL and including stored procedures:
mysqldump --ssl-key=/path/to/client-key.pem -u username -p --routines database_name > with_procedures_backup.sql
This command exports `database_name` to `with_procedures_backup.sql`, including stored procedures and securing the connection with `client-key.pem`. Verify by examining `with_procedures_backup.sql` for stored procedure definitions.
Also check similar articles.
Configuring SSL Cipher in mysqldump
Setting X509 Cert for SSL in mysqldump
Setting CA Directory for SSL in mysqldump
Setting CA File for SSL in mysqldump
Configuring SSL Connection Mode in mysqldump
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