Create Security Group

1. In the VPC interface:

   • Select Security Group
   • Select Cretae security group

2. Implement Security group

   • Security Group name, as Public subnet - SG
   • Description, as Allow SSH and Ping for servers in public subnet.
   • Choose Workshop1 VPC

3. Implement Inbound rules

   • Within Inbound rules, click Add rule
   • Select Type: SSH and **Source: My IP. (Use your public IPv4 address)
   • Select Add rule to add new rule.
   • Select Type: All ICMP - IPv4 và Source: Anywhere. Accept ping from anywhere.

4. Check Outbound rules and select Cretae security group

5. Complete the creation of the security group for the server located in the Public subnet

Same the way, create Security Group for instance in Private subnet

6. Complete the creation of the security group for the server located in the Private subnet