How to Securely Configure an AWS EC2 Instance (2022)

AWS’ Elastic Compute Cloud, more popularly known as EC2, is aservice that allows organizations to spin up virtual machines that can be usedto host and run applications, databases, and much more. EC2 instances come witha wide variety of options, from selecting the number of CPU cores to diskspace, memory, and operating system, to name a few. The EC2 service also comespacked with different configuration options and settings for an instance towork with. Uncle Ben said, “With great power comes great responsibility,” andin this case with a lot of settings to choose from comes a lot ofmisconfigurations. Thus, this article will look at how we can securelyconfigure our EC2 instances.

Although this is not an exhaustive list of actions to take tosecure your instances, these configurations are a good starting point as theyare easy to understand as well as implement. As one gets familiar with AWS andits various other services, additional (advanced) measures can be taken tofurther strengthen the security of EC2 instances. For now, we will stick to thelist of security settings that are directly applicable to EC2 instances.

Instance metadata service (IMDS) provides information about theinstance and various parameters associated with it such as user data that isspecified at launch. IMDSv1 stored credentials in the endpoint which could beretrieved and then used to perform actions with, say, AWS CLI with thosecredentials. This could prove devastating in the case of the credentials beinginfiltrated. Thus, IMDSv2 was introduced to stop various attacks against theabuse of metadata endpoints. IMDSv2 uses a session but does not store thesession token as information in the endpoint itself, making it impossible toretrieve the token after it is generated in subsequent calls.

When launching an instance, under the “Configure InstanceDetails” page, navigate to the “Advanced Details” section, and:

Enable IMDSv2 for NewInstance With AWS CLI

To enable IMDSv2 while launching an instance with AWS CLI, usethe following flag in the command:

aws ec2 run-instances --image-id  \
 \
--metadata-options "HttpEndpoint=enabled,HttpTokens=required"

Enable IMDSv2 for ExistingInstances With AWS CLI

Run the following AWS CLI command to modify the instance andenable IMDSv2:

aws ec2 modify-instance-metadata-options \
--instance-id  \
--http-tokens required \
--http-endpoint enabled

ImplementLeast Permissive Security Group Rules

Security groups are firewalls that define permitted inbound andoutbound reachability to and from the instance to various other resources, onthe public internet as well as within the VPCs. It is important to ensure thatwe expose only those services running on the instance that are required andlimit the access to only those users/groups who require it. For that, we needto add security group rules that are as explicit as possible. For example,instead of using 0.0.0.0/0 as the allowed source for SSH protocol, we canspecify a common VPN that the team that needs access to the instance uses asthe source explicitly.

AWS has extensivedocumentation for creating and managing securitygroups and rulesavailable.

RegularPatching

Patching refers to the activity of applying software updates tothe operating system for a performance upgrade, bug fixes, and security fixesreleased by the vendor that maintains the operating system.

The steps for patching differ from OS to OS, but the ideaessentially remains the same: use the operating system’s mechanism to check ifthere is a patch/update available and apply it. Some patches also requirereboots for the system although this is not always the case.

For example, the following steps can be performed to patch anEC2 instance running Ubuntu 18.04 as the operating system:

<!--[if !supportLists]-->1. <!--[endif]-->SSH into theEC2 instance

<!--[if !supportLists]-->2. <!--[endif]-->Runsudo aptupdate.

<!--[if !supportLists]-->3. <!--[endif]-->Runsudo aptupgrade.

<!--[if !supportLists]-->4. <!--[endif]-->Runsudoreboot.

Patching Multiple MachinesParallelly With SSM Agent

Applying a patch manually is fine if the number of instances weare dealing with is small; say, 10. But in most real-life cases, the number isusually bigger than that, and thus patching manually becomes a fairly dauntingtask. Thankfully, AWS has a service called Systems Manager, or SSM for short.SSM can execute commands on multiple machines simultaneously and take away thehassle of manually accessing one machine at a time, making it an amazinglyuseful tool to utilize.

(Video) Secure an AWS EC2 instance with BlastShield™ in 6 steps

"How to Patch the Pwnkit vulnerability (CVE-2021-4034) on theCloud" explains how to patch multiple EC2 servers using AWS SSMunder the section “Patching multiple machines on AWS and GCP > AWS withSSM.”

EnableRegular Backups for EBS Volumes

Data stored on EC2 instances should be regularly backed up toavoid issues of data loss due to disk failures, data corruption, etc. AWS DataLifecycle Manager is a service that can be utilized to create a backup scheduleto take automated backups of our EBS volumes.

Enable Regular Backups viaAWS Console

To enable regular backup with Amazon Data Lifecycle Manager fromthe console, follow the below-mentioned steps:

<!--[if !supportLists]-->1. <!--[endif]-->Navigate tothe EC2 details page and then select the “Lifecycle Manager” link under the“Elastic Block Storage” sub-menu.

<!--[if !supportLists]-->2. <!--[endif]-->Select the“EBS snapshot policy” and click on the “Next step” button.

How to Securely Configure an AWS EC2 Instance (1)

<!--[if !supportLists]-->3. <!--[endif]-->Select thetarget resource type (Volume or Instance ), and specify the tag to identify theselected resource type. Click on the “Add” button.

How to Securely Configure an AWS EC2 Instance (2)

<!--[if !supportLists]-->4. <!--[endif]-->Add adescription of the backup policy.

How to Securely Configure an AWS EC2 Instance (3)

<!--[if !supportLists]-->5. <!--[endif]-->Addnecessary tags for the policy.

How to Securely Configure an AWS EC2 Instance (4)

<!--[if !supportLists]-->6. <!--[endif]-->Ensure the“Enabled” option is selected in the “Policy status” section, and click on the“Next” button.

How to Securely Configure an AWS EC2 Instance (5)

<!--[if !supportLists]-->7. <!--[endif]-->Add detailsfor the backup schedule as per requirement. Ideally, a daily backup isrecommended.

How to Securely Configure an AWS EC2 Instance (6)

<!--[if !supportLists]-->8. <!--[endif]-->Scroll downand click on the “Review policy” button.

How to Securely Configure an AWS EC2 Instance (7)

(Video) Restrict Access to Amazon EC2 Instances with Security Groups

<!--[if !supportLists]-->9. <!--[endif]-->Lastly,click on the “Create policy” button to create the backup policy and schedule.

How to Securely Configure an AWS EC2 Instance (8)\

Enable Regular Backups WithAWS CLI

To enable regular backup with Amazon Data Lifecycle Manager withAWS CLI, follow the below-mentioned steps:

<!--[if !supportLists]-->1. <!--[endif]-->Create afile called policy.json and add the following contents in the file replacingthe configuration as required.

{
 "ResourceTypes": [
 "VOLUME"
 ],
 "TargetTags": [
 {
 "Key": "createdBy",
 "Value": "ayush"
 }
 ],
 "Schedules":[
 {
 "Name": "DailySnapshots",
 "CopyTags": true,
 "TagsToAdd": [
 {
 "Key": "type",
 "Value": "myDailySnapshot"
 }
 ],
 "CreateRule": {
 "Interval": 24,
 "IntervalUnit": "HOURS",
 "Times": [
 "03:00"
 ]
 },
 "RetainRule": {
 "Count":5
 }
 }
 ]
}

<!--[if !supportLists]-->2. <!--[endif]-->Obtain theARN of the IAM role that would be used to create the backup for EBS volumes.

<!--[if !supportLists]-->3. <!--[endif]-->Lastly, runthe following AWS CLI command:

Encrypt EBS Volumes

EBS volumes should be encrypted to ensure that the data theyhold cannot be read or misused by unauthorized entities who may have gainedaccess to the volume. We can enable a configuration to enforce encryption onall EBS volumes by default when they are created.

Enable Encryption via Console

To enable encryption by default for the AWS account with AWSCLI, the following steps can be used:

<!--[if !supportLists]-->1. <!--[endif]-->Navigate tothe EC2 dashboard page and click on the “EBS encryption” link.

How to Securely Configure an AWS EC2 Instance (9)

<!--[if !supportLists]-->2. <!--[endif]-->Click on the“Manage” button.

How to Securely Configure an AWS EC2 Instance (10)

3. Select thecheckbox “Enable” for the “Always encrypt new EBS volumes” setting, and clickon the “Update EBS encryption” button.

How to Securely Configure an AWS EC2 Instance (11)

Enable Encryption With AWSCLI

To enable encryption by default for the AWS account with AWSCLI, the following command can be used:

aws ec2 enable-ebs-encryption-by-default
(Video) 8 Creating a Key Pair and a Security Group for AWS EC2

Additional Notes

The above configuration encrypts new EBS volumes that arecreated in the account. Toencrypt existing volumes, the documentation by AWS can beused as a reference.

Encrypt EBSSnapshots

EBS snapshots are used as backups for EBS volumes, which can beused to recover instance states, launch new instances from the backup, etc.Since EBS snapshots are essentially equivalent to the EBS volumes themselves,ensuring that the snapshots are encrypted as well as their counterpart EBSvolumes is necessary.

A good feature in EC2 snapshots is that when a snapshot iscreated for an encrypted volume, the snapshot is also encrypted by default.This eliminates the need for ever having to encrypt snapshots that were createdafter enabling the EBS encryption setting that we configured in the previoussection on encrypting EBS volumes. That being said, there might be oldsnapshots that are unencrypted that we need to encrypt, which can be done bycreating a copy of the unencrypted snapshot. For the new, copied snapshot wewill enable encryption.

Enable Encryption forSnapshot via Console

To enable encryption for an existing unencrypted snapshot viaConsole, the following steps can be performed:

<!--[if !supportLists]-->1. <!--[endif]-->Navigate tothe EC2 dashboard.

<!--[if !supportLists]-->2. <!--[endif]-->Click on the“Snapshots” link under the “Elastic Block Storage” sub-menu.

<!--[if !supportLists]-->3. <!--[endif]-->Select thesnapshot to make an encrypted copy for, click on the Actions drop-down, andclick on the “Copy snapshot” option.

Use TrustedAMIs

Amazon Machine Images, or AMIs, are launch configurationpackages for EC2 instances that need to be specified when launching aninstance. These AMIs can be created by anyone and shared with specific AWSaccounts or with everyone by making them public. This may lead to a possibilitywhere a malicious AMI may be shared. Thus as a security measure, we shouldeither create and use AMIs ourselves for our instances or use public AMIs thatare published by trusted vendors only. One such trusted AMI is the Amazon LinuxImage which is created and maintained by Amazon itself. Other images can alsobe trusted although based on the vendor, not the name, as one can create animage and call it Ubuntu, for example, but the publisher may not actually beassociated with the Canonical Group that maintains and releases UbuntuOperating Systems.

AMIs selected at the time of launching an image are not exactlya configuration associated with the instance, so there are no specific steps totake in the case of this security measure. The AMI being used needs to bevetted for trust before usage, and at the time of launching an instance:

<!--[if !supportLists]-->1. <!--[endif]-->With theconsole, the AMI needs to be selected from the available list present.

<!--[if !supportLists]-->2. <!--[endif]-->With the AWSCLI, the appropriate AMI ID needs to be supplied to launch the instance.

Utilize IAMRoles To Allow the Instance to Work With AWS Resources

IAM roles are used to delegate permissions to perform actions onAWS resources and perform their required roles. When an IAM role is attached toan EC2 instance, it is called an instance role, and this instance role can beused by the server to perform permitted actions; for example, uploading a localbackup to an S3 bucket.

Least-privilege access is a security best practice where we addthe exact permission(s) that a role (or in other cases, an IAM user) requiresto perform its job. Applying this principle to IAM roles that are attached toinstances, only the permissions that are required by the instance to performits job should be added to the instance role and nothing else. This ensuresthat in the case of the credentials getting leaked, the damage is minimized.

Configuring the least-privilege permission for an IAM role isvery contextual; i.e., it cannot be generalized. Therefore, it goes beyond thescope of this article to provide an exhaustive list of combinations ofdifferent possible permissions that can be utilized by an instance and thevarious use cases.

Use VPCs andSubnets To Isolate Machines

Virtual Private Cloud

Virtual Private Cloud or VPC is an AWS service that allows usersto create virtual networks that are isolated logically from one another.Talking specifically about EC2 instances, as an example, we can think of a casewhere some EC2 instances need to access only internal resources and do notrequire access to the internet. For such instances, we can create a VPC thatdoes not allow inbound and outbound connections from the internet so thecommunication can only happen between resources in the same VPC. Thedocumentation from AWS can be used to understandhow to create new VPCs.

Create VPC via Console

Perform the following steps to create a new VPC:

<!--[if !supportLists]-->1. <!--[endif]-->Navigate tothe VPC management page.

<!--[if !supportLists]-->2. <!--[endif]-->Click on the“Launch VPC Wizard” button.

(Video) Amazon EC2 Security Groups Tutorial

Enable Detailed MonitoringWith AWS CLI

Run the following AWS CLI command to enable detailed monitoringfor existing instances:

aws ec2 monitor-instances --instance-ids 

Run the following AWS CLI command to enable detailed monitoringwhen launching a new instance:

aws ec2 run-instances --image-id  --monitoring Enabled=true #Amongst other options/flags

Conclusion

EC2 is an extensively utilized service offered by AWS to run ourapplications and so much more. With its list of extensive usability comes along list of options to apply to these instances, which can lead tomisconfigurations or the use of insecure default configurations.

In this article, we took a look at the various security measureswe can take to secure our EC2 instances, some by applying settings directly onthe EC2 instances like using trusted AMIs or enabling IMDSv2, and some thatalign with the instance tangentially, such as using VPCs to isolate variousinstances from each other or encrypting the EBS volumes and snapshots. In allthese cases we saw why these configurations are highly recommended to use, ifnot outright mandatory to apply.

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FAQs

How can a user protect an Amazon EC2 instances from a suspicious IP address? ›

To allow or block specific IP addresses for your EC2 instances, use a network Access Control List (ACL) or security group rules in your VPC. Network ACLs and security group rules act as firewalls allowing or blocking IP addresses from accessing your resources.

Which one would be the most secure approach for AWS console access? ›

MFA is the best way to protect accounts from inappropriate access. Always set up MFA on your Root user and AWS Identity and Access Management (IAM) users. If you use AWS IAM Identity Center to control access to AWS or to federate your corporate identity store, you can enforce MFA there.

Which of the following option would you suggest to secure EC2 instance? ›

Options are : Encrypt the EBS volumes of the underlying EC2 Instances. Use AWS(Amazon Web Service) KMS Customer Default master key. Use SSL/TLS for encrypting the data.

How secure is AWS EC2? ›

Security, Identity, and Compliance on AWS

AWS identifies threats by continuously monitoring the network activity and account behavior within your cloud environment. Network and application protection services enable you to enforce fine-grained security policy at network control points across your organization.

How do I secure my AWS environment? ›

Best Practices for AWS Infrastructure Security
  1. Tighten the security configurations of CloudTrail. ...
  2. Follow IAM best practices. ...
  3. Create timely backups. ...
  4. Follow best practices for using Amazon VPC. ...
  5. Use network segmentation and security zoning. ...
  6. Strengthen network security. ...
  7. Secure the periphery systems such as DNS.
30 Dec 2020

Which is the best practice to connect to an EC2 instance? ›

Ensure that no security group allows unrestricted inbound access on TCP port 6379 (Redis). Ensure that your EC2 instances do not reach the limit set by AWS for the number of vCPUs. Ensure the default security group of every VPC restricts all traffic. Ensure default security groups aren't in use.

How do I ensure security in AWS? ›

Best practices to help secure your AWS resources
  1. Create a strong password for your AWS resources. ...
  2. Use a group email alias with your AWS account. ...
  3. Enable multi-factor authentication. ...
  4. Set up AWS IAM users, groups, and roles for daily account access. ...
  5. Delete your account's access keys. ...
  6. Enable CloudTrail in all AWS regions.
8 Jun 2017

How can the EC2 instance be configured to make AWS API calls securely? ›

How can the EC2 instance be configured to make AWS API calls securely? A. Sign the AWS CLI command using the signature version 4 process.

Which of the below are you responsible for when running an EC2 instance on AWS? ›

Customers that deploy an Amazon EC2 instance are responsible for management of the guest operating system (including updates and security patches), any application software or utilities installed by the customer on the instances, and the configuration of the AWS-provided firewall (called a security group) on each ...

What is the most secure way to store password on AWS? ›

Encrypt your secret data

Secrets Manager encrypts the protected text of a secret by using AWS Key Management Service (AWS KMS). Many AWS services use AWS KMS for key storage and encryption. AWS KMS ensures secure encryption of your secret when at rest.

Which of the following are best practices to secure your AWS account? ›

Short description
  • Safeguard your passwords and access keys.
  • Activate multi-factor authentication (MFA) on the AWS account root user and any users with interactive access to AWS Identity and Access Management (IAM)
  • Limit AWS account root user access to your resources.
  • Audit IAM users and their policies frequently.
22 Aug 2022

Which of the following is specifically an AWS security best practice? ›

Always Use Encryption

Ideally, you should encrypt all of your data –– even if you're not required to for compliance reasons. This means using encryption for data in transit and data stored on S3. AWS makes it easy to encrypt data within their cloud environment.

What is the best practice for maintaining Windows EC2? ›

To ensure the best results from running Windows on Amazon EC2, we recommend that you perform the following best practices.
  • Update drivers.
  • Use the latest Windows AMIs.
  • Security.
  • Storage.
  • Resource management.
  • Backup and recovery.
  • Networking.

What should you use to control traffic in and out of EC2 instances? ›

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.

How do you increase security of the servers you have deployed so that they are not reachable from external sources? ›

10 Tips to Increase Security on Web Hosting Servers
  1. Use Public Key Authentication For SSH. Remove unencrypted access. ...
  2. Strong Passwords. ...
  3. Install And Configure The CSF Firewall. ...
  4. Install And Configure Fail2Ban. ...
  5. Install Malware Scanning Software. ...
  6. Keep Software Up-To-Date. ...
  7. Backup Regularly. ...
  8. Monitor Logs.

Is AWS secure enough? ›

AWS supports more security standards and compliance certifications than any other offering, including PCI-DSS, HIPAA/HITECH, FedRAMP, GDPR, FIPS 140-2, and NIST 800-171, helping satisfy compliance requirements for virtually every regulatory agency around the globe.

How do you ensure cloud security? ›

How to secure your information in the cloud
  1. Use a Cloud Service That Encrypts. ...
  2. Read the User Agreements. ...
  3. Set Up Your Privacy Settings. ...
  4. Use Strong Passwords. ...
  5. Use Two-Factor Authentication. ...
  6. Don't Share Personal Information. ...
  7. Don't Store Sensitive Information. ...
  8. Use a Strong Anti-Malware Program.

What are the security controls providing by Amazon? ›

Amazon Web Services (AWS) enables organizations to build and scale applications quickly and securely. However, continuously adding new tools and services introduces new security challenges.
...
Top 4 AWS Application Security Tools
  • Amazon Inspector. ...
  • AWS Shield. ...
  • AWS Web Application Firewall. ...
  • AWS Secrets Manager.

What are examples of security best practices in infrastructure protection AWS? ›

There are six best practice areas for security in the cloud:
  • Security.
  • Identity and Access Management.
  • Detection.
  • Infrastructure Protection.
  • Data Protection.
  • Incident Response.

What are the three authentication options offered by AWS? ›

What are the three authentication options offered by AWS?
  • Username and password, certificate, access keys.
  • Access monitoring, password, locking systems.
  • Access keys, system monitoring, password.
29 Sept 2014

What is AWS security called? ›

The AWS CloudHSM is a cloud-based hardware security module (HSM) that enables you to easily generate and use your own encryption keys on the AWS Cloud. With AWS CloudHSM, you can manage your own encryption keys using dedicated FIPS 140-2 Level 3 validated HSMs.

How many security groups can you assign to an Amazon EC2 instance? ›

You can assign up to 5 security groups to a network interface. If you need to increase or decrease this limit, you can contact AWS Support. The maximum is 16.

How do I connect two instances to AWS? ›

If the instance does not have a public IP address, you can connect to the instance over a private network using an SSH client or the EC2 Instance Connect CLI. For example, you can connect from within the same VPC or through a VPN connection, transit gateway, or AWS Direct Connect.

Can an EC2 instance have multiple security groups? ›

You can apply multiple security groups to a single EC2 instance or apply a single security group to multiple EC2 instances. System administrators often make changes to the state of the ports; however, when multiple security groups are applied to one instance, there is a higher chance of overlapping security rules.

Which of the following security measures protect access to an AWS account? ›

Activate multi-factor authentication (MFA) for privileged users.

How many roles can be attached to an EC2 instance? ›

An instance profile can contain only one IAM role. This limit cannot be increased.

Which of the following are important steps for securing IAM user accounts? ›

Security best practices in IAM
  • Require human users to use federation with an identity provider to access AWS using temporary credentials.
  • Require workloads to use temporary credentials with IAM roles to access AWS.
  • Require multi-factor authentication (MFA)
14 Jul 2022

What is the most secure way to provide access to the AWS services with minimum management overhead? ›

What is the MOST secure way to provide access to the AWS services with MINIMAL management overhead? A. Use AWS KMS to store and retrieve credentials.

What is the most secure way to configure this access for the Lambda function? ›

D. Add the AWS account root user access key ID and secret access key as encrypted environment variables in the Lambda function.

Which of the following is true about security groups for EC2 instances? ›

Option(4) Allow all outbound traffic is the correct answer.

The security in elastic compute cloud allows all the types of outgoing traffic. That is it allows the traffic going from ec2instance to out.

How do you whitelist IP address in EC2? ›

How to Whitelist an IP Address on AWS?
  1. Click the dropdown “Services” from the top-right menu.
  2. Find the “EC2” service section.
  3. Click the “Security Groups” option located in the left menu.
  4. Click “Create Security Group”
  5. Here, you'll set the information and rules for the group.
  6. Click “Add Rule” in the “Inbound” tab.
3 Dec 2021

How do I block an IP address on AWS EC2 instance? ›

So here is a quick tutorial.
  1. Open your VPC dashboard.
  2. Open the “Network ACLs” view.
  3. Open the ACL editor. Select the subnet to which your EC2 instances or load balancers are connected. Click “Inbound Rules” Click “Edit”
  4. Add a rule to block the traffic. You will now see the ACL editor. On the last row, you can add a new rule.
13 Jun 2015

How do instances without a public IP access the Internet? ›

To provide your instances with internet access without assigning them public IP addresses, you can use a NAT device instead. A NAT device enables instances in a private subnet to connect to the internet, but prevents hosts on the internet from initiating connections with the instances.

How do I make my EC2 more secure? ›

Security in Amazon EC2
  1. Controlling network access to your instances, for example, through configuring your VPC and security groups. ...
  2. Managing the credentials used to connect to your instances.
  3. Managing the guest operating system and software deployed to the guest operating system, including updates and security patches.

Which of the following options would you suggest to secure EC2 instances? ›

Options are : Encrypt the EBS volumes of the underlying EC2 Instances. Use AWS(Amazon Web Service) KMS Customer Default master key. Use SSL/TLS for encrypting the data.

How do I protect my AWS instances? ›

Controlling network traffic
  1. Restrict access to your instances using security groups. ...
  2. Use private subnets for your instances if they should not be accessed directly from the internet. ...
  3. Use AWS Virtual Private Network or AWS Direct Connect to establish private connections from your remote networks to your VPCs.

Which one would be the most secure approach for AWS console access? ›

MFA is the best way to protect accounts from inappropriate access. Always set up MFA on your Root user and AWS Identity and Access Management (IAM) users. If you use AWS IAM Identity Center to control access to AWS or to federate your corporate identity store, you can enforce MFA there.

How can a user protect an Amazon EC2 instance from a suspicious IP address? ›

To allow or block specific IP addresses for your EC2 instances, use a network Access Control List (ACL) or security group rules in your VPC. Network ACLs and security group rules act as firewalls allowing or blocking IP addresses from accessing your resources.

What is the most secure way to store password on AWS? ›

Encrypt your secret data

Secrets Manager encrypts the protected text of a secret by using AWS Key Management Service (AWS KMS). Many AWS services use AWS KMS for key storage and encryption. AWS KMS ensures secure encryption of your secret when at rest.

How do you secure your environment? ›

Top 10 Actions to Secure Your Environment
  1. Identify users. ...
  2. Manage authentication and safeguard access. ...
  3. Protect your identities. ...
  4. Set conditional access policies. ...
  5. Set up mobile device management. ...
  6. Manage mobile apps. ...
  7. Discover shadow IT and take control of your cloud apps. ...
  8. Protect your documents and email.

What are the best practices around EC2 security? ›

Best practices for Amazon EC2
  • Manage access to AWS resources and APIs using identity federation, IAM users, and IAM roles. ...
  • Implement the least permissive rules for your security group. ...
  • Regularly patch, update, and secure the operating system and applications on your instance.

What is the best method to give privilege to an EC2 instance to access other AWS? ›

You can use IAM to control how other users use resources in your AWS account, and you can use security groups to control access to your Amazon EC2 instances. You can choose to allow full use or limited use of your Amazon EC2 resources.

How can the EC2 instance be configured to make AWS API calls securely? ›

How can the EC2 instance be configured to make AWS API calls securely? A. Sign the AWS CLI command using the signature version 4 process.

What is the best practice for maintaining Windows EC2? ›

To ensure the best results from running Windows on Amazon EC2, we recommend that you perform the following best practices.
  • Update drivers.
  • Use the latest Windows AMIs.
  • Security.
  • Storage.
  • Resource management.
  • Backup and recovery.
  • Networking.

How do you increase security of the servers you have deployed so that they are not reachable from external sources? ›

10 Tips to Increase Security on Web Hosting Servers
  1. Use Public Key Authentication For SSH. Remove unencrypted access. ...
  2. Strong Passwords. ...
  3. Install And Configure The CSF Firewall. ...
  4. Install And Configure Fail2Ban. ...
  5. Install Malware Scanning Software. ...
  6. Keep Software Up-To-Date. ...
  7. Backup Regularly. ...
  8. Monitor Logs.

What is Amazon security hub? ›

AWS Security Hub is a cloud security posture management service that performs security best practice checks, aggregates alerts, and enables automated remediation.

What is the most secure way to provide access to the AWS services with minimum management overhead? ›

What is the MOST secure way to provide access to the AWS services with MINIMAL management overhead? A. Use AWS KMS to store and retrieve credentials.

What is the most secure way to configure this access for the Lambda function? ›

D. Add the AWS account root user access key ID and secret access key as encrypted environment variables in the Lambda function.

Which of the following is true about security groups for EC2 instances? ›

Option(4) Allow all outbound traffic is the correct answer.

The security in elastic compute cloud allows all the types of outgoing traffic. That is it allows the traffic going from ec2instance to out.

Which is the best practice to connect to an EC2 instance? ›

Ensure that no security group allows unrestricted inbound access on TCP port 6379 (Redis). Ensure that your EC2 instances do not reach the limit set by AWS for the number of vCPUs. Ensure the default security group of every VPC restricts all traffic. Ensure default security groups aren't in use.

Which of the following are steps you should take in securing your AWS account? ›

Best practices to help secure your AWS resources
  • Create a strong password for your AWS resources. ...
  • Use a group email alias with your AWS account. ...
  • Enable multi-factor authentication. ...
  • Set up AWS IAM users, groups, and roles for daily account access. ...
  • Delete your account's access keys. ...
  • Enable CloudTrail in all AWS regions.
8 Jun 2017

What is considered a best practice for using AWS? ›

One of the very best of AWS best practices is to avoid creating an access key for your root account. Unless, for some strange reason, you absolutely must have a root access key, it is best not to generate one.

How do I secure my AWS environment? ›

Best Practices for AWS Infrastructure Security
  1. Tighten the security configurations of CloudTrail. ...
  2. Follow IAM best practices. ...
  3. Create timely backups. ...
  4. Follow best practices for using Amazon VPC. ...
  5. Use network segmentation and security zoning. ...
  6. Strengthen network security. ...
  7. Secure the periphery systems such as DNS.
30 Dec 2020

What steps will you take to secure a server? ›

Server Security Best Practices
  1. Constantly Upgrade the Software and the Operating System. ...
  2. Configure Your Computer to File Backups. ...
  3. Set up Access Limitations to Your Computers files. ...
  4. Install SSL Certificates. ...
  5. Use Virtual Private Networks (Private Networking) ...
  6. Server Password Security. ...
  7. Use Firewall Protection.
8 Mar 2021

How do I secure my connection to the server? ›

21 Server Security Tips to Secure Your Server
  1. Establish and Use a Secure Connection.
  2. Use SSH Keys Authentication.
  3. Secure File Transfer Protocol.
  4. Secure Sockets Layer Certificates.
  5. Use Private Networks and VPNs. Server User Management.
  6. Monitor Login Attempts.
  7. Manage Users. Server Password Security.
  8. Establish Password Requirements.
20 Apr 2019

What are AWS guardrails? ›

A guardrail is a high-level rule that provides ongoing governance for your overall AWS environment. It's expressed in plain language. Through guardrails, AWS Control Tower implements preventive or detective controls that help you govern your resources and monitor compliance across groups of AWS accounts.

What is AWS config? ›

AWS Config is a service that enables you to assess, audit, and evaluate the configurations of your AWS resources. Config continuously monitors and records your AWS resource configurations and allows you to automate the evaluation of recorded configurations against desired configurations.

What is security center in AWS? ›

The AWS Security Center is a central location from which you can obtain the latest versions of our security whitepaper, receive security updates and where you can report any security concerns.

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3. AWS CLI on Amazon EC2 Tutorial
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5. AWS SSM Session Manager for Shell Access to EC2 Instances | Temporary SSH Credentials | Security 🔐
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6. Create EC2 Instance in AWS : Step by Step | javatechie
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