select @@global.skip_networking; @@global.skip_networking 0 select @@session.skip_networking; ERROR HY000: Variable 'skip_networking' is a GLOBAL variable show global variables like 'skip_networking'; Variable_name Value skip_networking OFF show session variables like 'skip_networking'; Variable_name Value skip_networking OFF select * from information_schema.global_variables where variable_name='skip_networking'; VARIABLE_NAME VARIABLE_VALUE SKIP_NETWORKING OFF select * from information_schema.session_variables where variable_name='skip_networking'; VARIABLE_NAME VARIABLE_VALUE SKIP_NETWORKING OFF set global skip_networking=1; ERROR HY000: Variable 'skip_networking' is a read only variable set session skip_networking=1; ERROR HY000: Variable 'skip_networking' is a read only variable