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Can configuration of AWS External Security Groups for CVO be changed?

Last Updated:

Applies to

  • Cloud Volumes ONTAP (CVO)
  • Amazon Web Services (AWS)
  • Cloud Manager
  • Internal and External Security Group configuration


  • Cloud Manager creates AWS security groups – which include inbound and outbound rules – that Cloud Manager and CVO need to operate successfully
  • You can create your own rules or edit predefined ones, if required


Predefined external security group for CVO HA mediator includes 2 inbound rules, allowing SSH access (port 22) and TCP port 3000 for RESTful API access from Cloud Manager. By default, those two rules allow all IPs to connect (source is

  • You can restrict source IPs for those rules, if needed


  • SSH port 22: allows only trusted Public IPs or disable SSH access from outside of network
  • TCP port 3000: allows only Cloud Manager IP
For information on necessary ports and protocols for each instance, see Cloud Manager - Security group rules for AWS documentation.


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