Server Command Options encrypted connections, regardless of the settings of the  admin_tsl_ xxx  and  admin_ssl_ xxx  system variables. The  --admin-ssl  option has an effect only at server startup on whether the administrative interface supports encrypted connections. It is ignored and has no effect on the operation of  ALTER INSTANCE RELOAD TLS  at runtime. For example, you can use  --admin-ssl=OFF  to start the administrative interface with encrypted connections disabled, then reconfigure TLS and execute  ALTER INSTANCE RELOAD TLS FOR CHANNEL mysql_admin  to enable encrypted connections at runtime. For general information about configuring connection-encryption support, see Section 6.3.1, “Configuring MySQL to Use Encrypted Connections” . That discussion is written for the main connection interface, but the parameter names are similar for the administrative connection interface. Consider setting at least the admin_ssl_cert  and  admin_ssl_key  system variables on the server side and the  --ssl-ca  (or  -- ssl-capath ) option on the client side. For additional information specifically about the administrative interface, see Administrative Interface Support for Encrypted Connections. Because support for encrypted connections is enabled by default, it is normally unnecessary to specify --admin-ssl . As of MySQL 8.0.26,  --admin-ssl  is deprecated and subject to removal in a future MySQL version. If it is desired to disable encrypted connections, that can be done without specifying --admin-ssl  in negated form. Set the  admin_tls_version  system variable to the empty value to indicate that no TLS versions are supported. For example, these lines in the server  my.cnf  file disable encrypted connections: [mysqld] admin_tls_version=’’ • --allow-suspicious-udfs • --ansi •  --basedir= dir_name ,  -b  dir_name 734 Command-Line Format --basedir=dir_name System Variable basedir Scope Global Dynamic No SET_VAR  Hint Applies No Type Directory name Command-Line Format --ansi Command-Line Format --allow-suspicious-udfs[={OFF|ON}] Type Boolean Default Value OFF This option controls whether loadable functions that have only an  xxx  symbol for the main function can be loaded. By default, the option is off and only loadable functions that have at least one auxiliary symbol can be loaded; this prevents attempts at loading functions from shared object files other than those containing legitimate functions. See Loadable Function Security Precautions. Use standard (ANSI) SQL syntax instead of MySQL syntax. For more precise control over the server SQL mode, use the  --sql-mode  option instead. See Section 1.7, “MySQL Standards Compliance” , and Section 5.1.11, “Server SQL Modes” .