对于现有连接，可以通过右键单击“连接”图标并选择“编辑”来绑定 SSL。 然后导航到“SSL”选项卡，并绑定证书文件。

使用 MySQL CLI 通过 SSL 连接到服务器

绑定 SSL 证书的另一种方法是使用 MySQL 命令行接口执行以下命令。

mysql.exe -h mydemoserver.mariadb.database.azure.com -u Username@mydemoserver -p --ssl-mode=REQUIRED --ssl-ca=c:\ssl\BaltimoreCyberTrustRoot.crt.pem
在 Windows 上使用 MySQL 命令行接口时，可能会收到错误 SSL connection error: Certificate signature check failed。 如果发生这种情况，请将 --ssl-mode=REQUIRED --ssl-ca={filepath} 参数替换为 --ssl。
在 Azure 中强制实施 SSL 连接
使用 Azure 门户
在 Azure 门户中，访问 Azure Database for MariaDB 服务器，并选择“连接安全性”。 使用切换按钮来启用或禁用“强制实施 SSL 连接”设置，并选择“保存”。 Microsoft 建议始终启用“强制实施 SSL 连接”设置，以增强安全性。
使用 Azure CLI

可以通过在 Azure CLI 中分别使用“Enabled”或“Disabled”值来启用或禁用“ssl-enforcement”参数。
az mariadb server update --resource-group myresource --name mydemoserver --ssl-enforcement Enabled
验证 SSL 连接
执行 mysql status 命令，验证是否已使用 SSL 连接到 MariaDB 服务器： 
status
通过查看输出来确认连接是否已加密，如果已加密，输出应显示为：“SSL: 使用中的密码为 AES256-SHA”
若要从应用程序通过 SSL 与 Azure Database for MariaDB 建立安全连接，请参阅以下代码示例：
$conn = mysqli_init();
mysqli_ssl_set($conn,NULL,NULL, "/var/www/html/BaltimoreCyberTrustRoot.crt.pem", NULL, NULL) ; 
mysqli_real_connect($conn, 'mydemoserver.mariadb.database.azure.com', 'myadmin@mydemoserver', 'yourpassword', 'quickstartdb', 3306, MYSQLI_CLIENT_SSL, MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT);
if (mysqli_connect_errno($conn)) {
die('Failed to connect to MySQL: '.mysqli_connect_error());
Python (MySQLConnector Python)
    conn = mysql.connector.connect(user='myadmin@mydemoserver',
                                   password='yourpassword',
                                   database='quickstartdb',
                                   host='mydemoserver.mariadb.database.azure.com',
                                   ssl_ca='/var/www/html/BaltimoreCyberTrustRoot.crt.pem')
except mysql.connector.Error as err:
    print(err)
Python (PyMySQL)
conn = pymysql.connect(user='myadmin@mydemoserver',
                       password='yourpassword',
                       database='quickstartdb',
                       host='mydemoserver.mariadb.database.azure.com',
                       ssl={'ca': '/var/www/html/BaltimoreCyberTrustRoot.crt.pem'})
client = Mysql2::Client.new(
        :host     => 'mydemoserver.mariadb.database.azure.com', 
        :username => 'myadmin@mydemoserver',      
        :password => 'yourpassword',    
        :database => 'quickstartdb',
        :sslca => '/var/www/html/BaltimoreCyberTrustRoot.crt.pem'
        :ssl_mode => 'required'
Ruby on Rails
default: &default
  adapter: mysql2
  username: username@mydemoserver
  password: yourpassword
  host: mydemoserver.mariadb.database.azure.com
  sslca: BaltimoreCyberTrustRoot.crt.pem
  sslverify: true
Golang
rootCertPool := x509.NewCertPool()
pem, _ := ioutil.ReadFile("/var/www/html/BaltimoreCyberTrustRoot.crt.pem")
if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
    log.Fatal("Failed to append PEM.")
mysql.RegisterTLSConfig("custom", &tls.Config{RootCAs: rootCertPool})
var connectionString string
connectionString = fmt.Sprintf("%s:%s@tcp(%s:3306)/%s?allowNativePasswords=true&tls=custom",'myadmin@mydemoserver' , 'yourpassword', 'mydemoserver.mariadb.database.azure.com', 'quickstartdb')	
db, _ := sql.Open("mysql", connectionString)
Java (JDBC)
# generate truststore and keystore in code
String importCert = " -import "+
    " -alias mysqlServerCACert "+
    " -file " + ssl_ca +
    " -keystore truststore "+
    " -trustcacerts " + 
    " -storepass password -noprompt ";
String genKey = " -genkey -keyalg rsa " +
    " -alias mysqlClientCertificate -keystore keystore " +
    " -storepass password123 -keypass password " + 
    " -dname CN=MS ";
sun.security.tools.keytool.Main.main(importCert.trim().split("\\s+"));
sun.security.tools.keytool.Main.main(genKey.trim().split("\\s+"));
# use the generated keystore and truststore 
System.setProperty("javax.net.ssl.keyStore","path_to_keystore_file");
System.setProperty("javax.net.ssl.keyStorePassword","password");
System.setProperty("javax.net.ssl.trustStore","path_to_truststore_file");
System.setProperty("javax.net.ssl.trustStorePassword","password");
url = String.format("jdbc:mysql://%s/%s?serverTimezone=UTC&useSSL=true", 'mydemoserver.mariadb.database.azure.com', 'quickstartdb');
properties.setProperty("user", 'myadmin@mydemoserver');
properties.setProperty("password", 'yourpassword');
conn = DriverManager.getConnection(url, properties);
Java (MariaDB)
# generate truststore and keystore in code
String importCert = " -import "+
    " -alias mysqlServerCACert "+
    " -file " + ssl_ca +
    " -keystore truststore "+
    " -trustcacerts " + 
    " -storepass password -noprompt ";
String genKey = " -genkey -keyalg rsa " +
    " -alias mysqlClientCertificate -keystore keystore " +
    " -storepass password123 -keypass password " + 
    " -dname CN=MS ";
sun.security.tools.keytool.Main.main(importCert.trim().split("\\s+"));
sun.security.tools.keytool.Main.main(genKey.trim().split("\\s+"));
# use the generated keystore and truststore 
System.setProperty("javax.net.ssl.keyStore","path_to_keystore_file");
System.setProperty("javax.net.ssl.keyStorePassword","password");
System.setProperty("javax.net.ssl.trustStore","path_to_truststore_file");
System.setProperty("javax.net.ssl.trustStorePassword","password");
url = String.format("jdbc:mariadb://%s/%s?useSSL=true&trustServerCertificate=true", 'mydemoserver.mariadb.database.azure.com', 'quickstartdb');
properties.setProperty("user", 'myadmin@mydemoserver');
properties.setProperty("password", 'yourpassword');
conn = DriverManager.getConnection(url, properties);
.NET (MySqlConnector)
var builder = new MySqlConnectionStringBuilder
    Server = "mydemoserver.mysql.database.azure.com",
    UserID = "myadmin@mydemoserver",
    Password = "yourpassword",
    Database = "quickstartdb",
    SslMode = MySqlSslMode.VerifyCA,
    CACertificateFile = "BaltimoreCyberTrustRoot.crt.pem",
using (var connection = new MySqlConnection(builder.ConnectionString))
    connection.Open();
若要了解证书到期和轮换，请参阅证书轮换文档