A Security Group Whose Members Cannot Reach Each Other Unless Told

inner_access_policy defaults to Accept, so every instance in a group talks to every other on every port and one compromised web node is a route to the database beside it; SSH from 0.0.0.0/0 is the first rule offered; and the group is attached by the instance, which it cannot see. Members isolated unless told otherwise, SSH from anywhere refused unless accepted, egress open until rules narrow it.

This is the operations reference: version drift, dependants and neighbours. For what the module provisions, its inputs and outputs, and how to buy it, see the catalogue entry.

terraformAlibaba CloudSecurity & Identityv1.0.0static-validated

Provider drift

This artifact declares no Terraform provider requirements, so there is nothing to drift. Provider freshness applies to Terraform and OpenTofu modules.

What depends on this

No reference architecture names this module, so changing it affects only configurations that reference it directly.

Nearest alternatives

Nothing else in the catalogue covers security & identity on Alibaba Cloud. If this module is not the right shape, the closest options are on other clouds.

The same job on other clouds

Cloud Firewall on other providers. Useful when the cloud is still open, or when you are pricing a second one. How far a comparison like that can be trusted is covered in comparing clouds.

A Cloud Firewall Attached to Droplets with SSH from Somewhere SpecificDigitalOcean A Firewall Group that Names Its Sources and Says What It Does Not DoVultr A Firewall Policy that Governs a Network and Leaves a RecordGoogle Cloud A Firewall Without the Default Rules that Admit EverythingCivo A Hetzner Firewall Applied to Servers that Says What It Does About OutboundHetzner A Security Group Without the Rules You Did Not WriteHuawei Cloud A Security Group Written as One Ordered Rule Set with a Deny at the EndTencent Cloud A Security Group that Drops Inbound by DefaultScaleway A Security Group that Is Attached and Says What Empty MeansIBM Cloud A Security Group that Names Its Sources and Says What It Does Not FilterExoscale

Installing it

module "alicloud_security_group" {
  source  = "www.iac-bazaar.com/iac-bazaar/alicloud-security-group/alicloud"
  version = "1.0.0"
}

A registry token is required for the download itself. Installing through the registry protocol has the two credential steps.