Modify Public Subnet

Configure Auto-assign Public IP for Public Subnets

ℹ️ Objective

• Enable the feature to automatically assign a Public IP address to EC2 instances launched in the Public Subnets.
• This is a mandatory step so that we can access and configure the initial server from the Internet via SSH.

🔒 Steps to Follow

1. Access the Subnet Management Page

• From the VPC Dashboard interface, select Subnets from the left menu to view the list of all subnets belonging to your ors-vpc.

2. Edit the First Public Subnet

• Identify and select one of the two created Public Subnets (e.g., ors-vpc-subnet-public1-ap-southeast-1a).
• Click the Actions button and select Edit subnet settings.

3. Enable the Auto-assign IP Feature

• On the Edit subnet settings page, find the Auto-assign IP settings section.
• Check the box for Enable auto-assign public IPv4 address.
• Scroll down and click Save to apply the changes.

4. Repeat for the Remaining Public Subnet

• Repeat steps 2 and 3 for the second Public Subnet (e.g., ors-vpc-subnet-public2-ap-southeast-1b).
• This ensures that our system can operate uniformly across both Availability Zones, maintaining high availability.