Security Groups¶
Check Items¶
Check whether the Protocol & Port of the worker node security groups are set to ICMP: All and whether the security group with the source IP address set to the master node security group is deleted.
Note
This check item is performed only for clusters using VPC networking. For clusters using other networking, skip this check item.
Solution¶
Log in to the VPC console, choose Access Control > Security Groups, and enter the target cluster name in the search box. Two security groups are expected to display:
The security group name is cluster name-node-xxx. This security group is associated with the worker nodes.
The security group name is cluster name-control-xxx. This security group is associated with the master nodes.
Click the node security group and ensure that the following rules are configured to allow the master node to access the node using ICMP.
If the preceding security group rule is unavailable, add the rule with the following configurations to the node security group: Set Protocol & Port to Protocols/ICMP and All, and Source to Security group and the master security group.