Server Command Options buffer, and the amount of space required might be platform dependent. This means that when you assign a value to an option that controls a buffer size, the amount of space actually available might differ from the value assigned. In some cases, the amount might be less than the value assigned. It is also possible that the server adjusts a value upward. For example, if you assign a value of 0 to an option for which the minimal value is 1024, the server sets the value to 1024. Values for buffer sizes, lengths, and stack sizes are given in bytes unless otherwise specified. Some options take file name values. Unless otherwise specified, the default file location is the data directory if the value is a relative path name. To specify the location explicitly, use an absolute path name. Suppose that the data directory is  /var/mysql/data . If a file-valued option is given as a relative path name, it is located under  /var/mysql/data . If the value is an absolute path name, its location is as given by the path name. You can also set the values of server system variables at server startup by using variable names as options. To assign a value to a server system variable, use an option of the form  -- var_name = value . For example,  --sort_buffer_size=384M  sets the  sort_buffer_size  variable to a value of 384MB. When you assign a value to a variable, MySQL might automatically correct the value to stay within a given range, or adjust the value to the closest permissible value if only certain values are permitted. To restrict the maximum value to which a system variable can be set at runtime with the  SET  statement, specify this maximum by using an option of the form  --maximum- var_name = value  at server startup. You can change the values of most system variables at runtime with the  SET  statement. See Section 13.7.6.1, “SET Syntax for Variable Assignment” . Section 5.1.8, “Server System Variables” , provides a full description for all variables, and additional information for setting them at server startup and runtime. For information on changing system variables, see Section 5.1.1, “Configuring the Server” . • --help ,  -? • --admin-ssl ,  --skip-admin-ssl Display a short help message and exit. Use both the  --verbose  and  --help  options to see the full message. Command-Line Format --help Command-Line Format --admin-ssl[={OFF|ON}] Introduced 8.0.21 Deprecated 8.0.26 Type Boolean Default Value ON The  --admin-ssl  option is like the  --ssl  option, except that it applies to the administrative connection interface rather than the main connection interface. For information about these interfaces, see Section 5.1.12.1, “Connection Interfaces” . The  --admin-ssl  option specifies that the server permits but does not require encrypted connections on the administrative interface. This option is enabled by default. --admin-ssl  can be specified in negated form as  --skip-admin-ssl  or a synonym ( --admin- ssl=OFF ,  --disable-admin-ssl ). In this case, the option specifies that the server does  not  permit 733