# `AWSConfigRemediation-ModifyRDSInstancePortNumber`
<a name="automation-aws-modify-rds-port"></a>

 **Description** 

 The `AWSConfigRemediation-ModifyRDSInstancePortNumber` runbook modifies the port number on which the Amazon Relational Database Service (Amazon RDS) instance accepts connections. Running this automation will restart the database. 

 [Run this Automation (console)](https://console.aws.amazon.com/systems-manager/automation/execute/AWSConfigRemediation-ModifyRDSInstancePortNumber) 

**Document type**

Automation

**Owner**

Amazon

**Platforms**

Databases

**Parameters**
+ AutomationAssumeRole

  Type: String

  Description: (Required) The Amazon Resource Name (ARN) of the AWS Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf.
+ PortNumber

  Type: String

  Description: (Optional) The port number you want the DB instance to accept connections on.
+ RDSDBInstanceResourceId

  Type: String

  Description: (Required) The resource identifier for the DB instance whose inbound port number you want to modify.

**Required IAM permissions**

The `AutomationAssumeRole` parameter requires the following actions to use the runbook successfully.
+  `ssm:StartAutomationExecution` 
+  `ssm:GetAutomationExecution` 
+  `rds:DescribeDBInstances` 
+  `rds:ModifyDBInstance` 

 **Document Steps** 
+  `aws:executeAwsApi` - Gathers the DB instance identifier from the DB instance resource identifier. 
+  `aws:assertAwsResourceProperty` - Confirms the DB Instance is in an `AVAILABLE` state. 
+  `aws:executeAwsApi` - Modifies the inbound port number on which your DB instance accepts connections. 
+  `aws:waitForAwsResourceProperty` - Waits for the DB Instance to be in a `MODIFYING` state. 
+  `aws:waitForAwsResourceProperty` - Waits for the DB Instance to be in in an `AVAILABLE` state.