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Reviewed-by: Pristromskaia, Margarita <margarita.pristromskaia@t-systems.com> Co-authored-by: wanghuijuan738 <wanghuijuan738@huawei.com> Co-committed-by: wanghuijuan738 <wanghuijuan738@huawei.com>
5.5 KiB
5.5 KiB
Default Security Group and Rules
Default Security Group Rules
Note the following when using default security group rules:
- Inbound rules control incoming traffic to instances in the default security group. The instances can communicate with each other but cannot be accessed from external networks.
- Outbound rules allow all traffic from the instances in the default security group to external networks.
Figure 1 shows the default security group.
Table 1 describes the default security group rules.
Direction |
Protocol |
Port |
Source/Destination |
Description |
|---|---|---|---|---|
Outbound |
All |
All |
Destination: 0.0.0.0/0 |
Allows all outbound traffic. |
Inbound |
All |
All |
Source: the current security group (for example, sg-xxxxx) |
Allows communications among cloud servers within the security group and denies all inbound traffic. |
Parent topic: Security Groups