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A security engineer recently rotated the host keys for an Amazon EC2 instance. The security engineer is trying to access the EC2 instance by using the EC2 Instance. Connect feature. However, the security engineer receives an error (or failed host key validation. Before the rotation of the host keys EC2 Instance Connect worked correctly with this EC2 instance.
What should the security engineer do to resolve this error?
To set up a CloudFront distribution for an S3 bucket that hosts a static website, and to allow only specified IP addresses to access the website, the following steps are required:
Create a CloudFront origin access identity (OAI), which is a special CloudFront user that you can associate with your distribution. An OAI allows you to restrict access to your S3 content by using signed URLs or signed cookies. For more information, see Using an origin access identity to restrict access to your Amazon S3 content.
Create the S3 bucket policy so that only the OAI has access. This will prevent users from accessing the website directly by using S3 URLs, as they will receive an Access Denied error. To do this, use the AWS Policy Generator to create a bucket policy that grants s3:GetObject permission to the OAI, and attach it to the S3 bucket. For more information, see Restricting access to Amazon S3 content by using an origin access identity.
Create an AWS WAF web ACL and add an IP set rule. AWS WAF is a web application firewall service that lets you control access to your web applications. An IP set is a condition that specifies a list of IP addresses or IP address ranges that requests originate from. You can use an IP set rule to allow or block requests based on the IP addresses of the requesters. For more information, see Working with IP match conditions.
Associate the web ACL with the CloudFront distribution. This will ensure that the web ACL filters all requests for your website before they reach your origin. You can do this by using the AWS WAF console, API, or CLI. For more information, see Associating or disassociating a web ACL with a CloudFront distribution.
This solution will meet the requirements of allowing only specified IP addresses to access the website and preventing direct access by using S3 URLs.
The other options are incorrect because they either do not create a CloudFront distribution for the S3 bucket (A), do not use an OAI to restrict access to the S3 bucket , or do not use AWS WAF to block traffic from outside the specified IP addresses (D).
Verified Reference:
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-restricting-access-to-s3.html
https://docs.aws.amazon.com/waf/latest/developerguide/web-acl-ip-conditions.html
A company has set up the following structure to ensure that their S3 buckets always have logging enabled
If there are any changes to the configuration to an S3 bucket, a config rule gets checked. If logging is disabled , then Lambda function is invoked. This Lambda function will again enable logging on the S3 bucket. Now there is an issue being encoutered with the entire flow. You have verified that the Lambda function is being invoked. But when logging is disabled for the bucket, the lambda function does not enable it again. Which of the following could be an issue
Please select:
The most probable cause is that you have not allowed the Lambda functions to have the appropriate permissions on the S3 bucket to make the relevant changes.
Option A is invalid because this is more of a permission instead of a configuration rule issue.
Option C is invalid because changing the language will not be the core solution.
Option D is invalid because you don't necessarily need to use the API gateway service
For more information on accessing resources from a Lambda function, please refer to below URL
https://docs.IAM.amazon.com/lambda/latest/ds/accessing-resources.htmll
The correct answer is: The IAM Lambda function does not have appropriate permissions for the bucket Submit your Feedback/Queries to our Experts
A security engineer is designing an incident response plan to address the risk of a compromised Amazon EC2 instance. The plan must recommend a solution to meet the following requirements:
* A trusted forensic environment must be provisioned
* Automated response processes must be orchestrated
Which IAM services should be included in the plan? {Select TWO)
A company usesAWS Organizations to run workloads in multiple AWS accounts Currently the individual team members at the company access all Amazon EC2 instances remotely by using SSH or Remote Desktop Protocol (RDP) The company does not have any audit trails and security groups are occasionally open The company must secure access management and implement a centralized togging solution
Which solution will meet these requirements MOST securely?
To meet the requirements of securing access management and implementing a centralized logging solution, the most secure solution would be to:
Install a bastion host in the management account.
Reconfigure all SSH and RDP to allow access only from the bastion host.
Install AWS Systems Manager Agent (SSM Agent) on the bastion host.
Attach the AmazonSSMManagedlnstanceCore role to the bastion host.
This solution provides the following security benefits:
It uses AWS Systems Manager Session Manager instead of traditional SSH and RDP protocols, which provides a secure method for accessing EC2 instances without requiring inbound firewall rules or open ports.
It provides audit trails by configuring Session Manager logging to Amazon CloudWatch Logs and creating a separate logging account to audit the log data.
It uses the AWS Systems Manager Agent to automate common administrative tasks and improve the security posture of the instances.
The separate logging account with cross-account permissions provides better data separation and improves security posture.
https://aws.amazon.com/solutions/implementations/centralized-logging/
Every application in a company's portfolio has a separate IAM account for development and production. The security team wants to prevent the root user and all IAM users in the production accounts from accessing a specific set of unneeded services. How can they control this functionality?
Please select:
As an administrator of the master account of an organization, you can restrict which IAM services and individual API actions the users and roles in each member account can access. This restriction even overrides the administrators of member accounts in the organization. When IAM Organizations blocks access to a service or API action for a member account a user or role in that account can't access any prohibited service or API action, even if an administrator of a member account explicitly grants such permissions in an IAM policy. Organization permissions overrule account permissions.
Option B is invalid because service policies cannot be assigned to the root account at the account level.
Option C and D are invalid because IAM policies alone at the account level would not be able to suffice the requirement
For more information, please visit the below URL
id=docs_orgs_console
https://docs.IAM.amazon.com/IAM/latest/UserGi
manage attach-policy.html
The correct answer is: Create a Service Control Policy that denies access to the services. Assemble all production accounts in an organizational unit. Apply the policy to that organizational unit
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