1select @@global.skip_networking; 2@@global.skip_networking 30 4select @@session.skip_networking; 5ERROR HY000: Variable 'skip_networking' is a GLOBAL variable 6show global variables like 'skip_networking'; 7Variable_name Value 8skip_networking OFF 9show session variables like 'skip_networking'; 10Variable_name Value 11skip_networking OFF 12select * from information_schema.global_variables where variable_name='skip_networking'; 13VARIABLE_NAME VARIABLE_VALUE 14SKIP_NETWORKING OFF 15select * from information_schema.session_variables where variable_name='skip_networking'; 16VARIABLE_NAME VARIABLE_VALUE 17SKIP_NETWORKING OFF 18set global skip_networking=1; 19ERROR HY000: Variable 'skip_networking' is a read only variable 20set session skip_networking=1; 21ERROR HY000: Variable 'skip_networking' is a read only variable 22