Creation of Route Table, Internet Gateway and Security Groups

 Route Table

A route table contains a set of rules, called routes that are used to determine where network traffic from your subnet or gateway is directed. For more information please navigate here.

·        Click on Route Tables from sidebar menu.

·        Click on Create Route Table button.

·        Enter Name Tag. For Exp: DemoDevOps-Public

·        Select the VPC created.

·        Click on Create button

·        Edit routes

·        Assign destination as 0.0.0.0/0 and assign internet gateway

Similarly create a private route table

·        Click on Route Tables from sidebar menu.

·        Click on Create Route Table button.

·        Enter Name Tag. For Exp: DemoDevOps-Private

·        Select the VPC created.

·        Click on Create button

·        Edit routes

·        Assign destination as 0.0.0.0/0 and assign nat gateway

Please Note: Public route should have Internet gateway attached with it, however private gateway should have nat gateway attached with it.


Creating Internet Gateway

An internet gateway is a horizontally scaled, redundant, and highly available VPC component that allows communication between instances in your VPC and the internet. It therefore imposes no availability risks or bandwidth constraints on your network traffic. For more information please navigate here.

·        Click on Internet Gateways from sidebar menu.

·        Click on Internet Gateways.

·        Enter Name tag. For Exp: DemoDevOps Internet Gateways

·        Click on Create button.

·        Attach proper VPC. If any wrong VPC attached then please detach that by clicking on Action > Detach and then Action > Attach VPC

Creating Security Groups

AWS Security Groups act like a firewall for your Amazon EC2 instances controlling both inbound and outbound traffic. When you launch an instance on Amazon EC2, you need to assign it to a particular security group.

·        Click on Security Groups from side bar menu.

·        Click on Create security Group button.

·        Enter Security Group name. For Exp: DemoDevOps

·        Associate the VPC created.

·        Click on Inbound tab and Click on Add Rule.

·        Enter Port range as 22 and IP as 10.0.0.0/24

·        Click on Outbound and Select Type as All Traffic and IP as 0.0.0.0/0

·        Click on Create

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