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How to create a security group with Inbound & Outbound rules in AWS EC2 Instance

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To create security group with Inbound & Outbound rules in AWS EC2 Instance

Introduction:

A security group runs as a virtual firewall for the EC2 instances to regulate incoming and outgoing traffic. If we didn't define a security group, Amazon EC2 utilizes the default security group which can add rules to each security group and allows traffic to or from its associated instances. Login to your AWS account: In AWS Console management click EC2 services: SNAP1 Then click Instances to Launch Instances: SNAP2 SNAP3 Continue the following steps to launch Instances: SNAP4 SNAP5 SNAP6 SNAP7

SNAP8 SNAP9 Create a new security group: SNAP10 SNAP11 SNAP12 SNAP13 Once completed connect to Instance: SNAP14 It will open the Linux terminal: SNAP15 Install httpd web server: SNAP16 SNAP17 Create a html file: SNAP18 SNAP19 Once completed go to Instances and copy the Instance Public Ip link: SNAP20 Open the link in browser: SNAP21 It will not show the content: SNAP22 Next, need to give Inbound and Outbound rues: Go to Security: SNAP23 SNAP24 Edit the Inbound rules: SNAP25 SNAP26 SNAP27 After that reload the browser It will show the content of the Instance: SNAP28 Edit the Outbound rules: SNAP29 Now, delete the default Outbound rule and check in terminal: SNAP30 SNAP31

It will show the mirror error: SNAP32 Then, again add the Outbound rule and check: SNAP33 SNAP34 SNAP35 With this method creation of security group with Inbound & Outbound rules in AWS EC2 Instance comes to an end.

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Frequently asked questions ( 5 )

Q

1)What types of rules can be defined in a security group?

A

By default, a security group includes an outbound rule that allows all outbound traffic. You can remove the rule and add outbound rules that allow specific outbound traffic only. If your security group has no outbound rules, no outbound traffic originating from your instance is allowed.

Q

What are the features of the security group in EC2?

A

A security group acts as a virtual firewall for your EC2 instances to control incoming and outgoing traffic. Inbound rules control the incoming traffic to your instance, and outbound rules control the outgoing traffic from your instance. When you launch an instance, you can specify one or more security groups.

Q

Do security groups cost money AWS?

A

There is no charge applicable to Security Groups in Amazon EC2 / Amazon VPC. You can drill-down into your billing charges via the Billing Dashboard. Just click Bill Details, expand the Elastic Compute Cloud section and a breakdown of charges will be displayed.

Q

At what level do security groups provide protection in AWS?

A

Every Security Group works in a similar fashion to a firewall as it carries a set of rules that filter traffic entering and leaving the EC2 instances. As said earlier, security groups are associated with the EC2 instances and offer protection at the ports and protocol access level.

Q

What are security groups in Active Directory?

A

Active Directory security groups include Account Operators, Administrators, DNS Admins, Domain Admins, Guests, Users, Protected Users, Server Operators, and many more. Understanding how to approach all these groups with a best-practice mindset is key to keeping your system secure.

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