Determining your AWS IP address range for a dynamic IP

To work with your AWS RDS PostgreSQL instance, you will need to provide your IP address or range. If you’ve got a dynamic IP address, this is the process to follow:

1. Determine your current IP:

2. Look up the IP address range assigned to your ISP:

3. Convert that range into CIDR notation:

4. Enter that range (or ranges) into your EC2 Security Group.

With thanks to Andy

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