Table 1 lists some high-risk ports that are blocked by default. Even if you have added a security group rule to allow access over these ports, traffic over these ports in restricted regions is still denied. In this case, do not use these high-risk ports for your services.
Protocol | Port |
|---|---|
TCP | 42 135 137 138 139 444 445 593 1025 1068 1433 1434 3127 3128 3129 3130 4444 4789 4790 5554 5800 5900 8998 9995 9996 |
UDP | 135~139 1026 1027 1028 1068 1433 1434 4789 4790 5554 9995 9996 |