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Understanding the AWS Shared Responsibility Model

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  1. Understanding the AWS Shared Responsibility Model
  2. Before diving into specific security practices, it's important to understand the AWS Shared Responsibility Model. This model defines the security obligations of both AWS and its customers: AWS Training in Pune. https://www.sevenmentor.com/amazon-web-services-training-institute-in-pune.php
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  4. AWS's Responsibility: AWS is responsible for protecting the infrastructure that runs its services. This includes the hardware, software, networking, and facilities that host AWS services.
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  6. Customer's Responsibility: As an AWS customer, you are responsible for securing the data, applications, and services you deploy on AWS. This includes managing identity and access, configuring security settings, encrypting data, and monitoring your environment.
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  8. 1. Identity and Access Management (IAM)
  9. Effective identity and access management is the cornerstone of cloud security. AWS Identity and Access Management (IAM) provides the tools you need to control who can access your AWS resources and what they can do with them.
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  11. Principle of Least Privilege: Always apply the principle of least privilege when granting access to AWS resources. Users should only have the permissions they need to perform their job functions, nothing more.
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  13. Use IAM Roles Instead of Root Access: Avoid using the AWS root account for everyday tasks. Instead, create IAM users and roles with specific permissions. Enable multi-factor authentication (MFA) for added security, especially for privileged accounts.
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  15. Federated Access and Single Sign-On (SSO): For large organizations, use federated access and AWS Single Sign-On (SSO) to manage user identities and permissions centrally. This reduces the risk of misconfigured access and simplifies user management.
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  17. 2. Network Security
  18. Securing your network on AWS is crucial for preventing unauthorized access and protecting your data from external threats.
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  20. Amazon Virtual Private Cloud (VPC): Use Amazon VPC to isolate your AWS resources within a private network. Within the VPC, create subnets, route tables, and network access control lists (NACLs) to control traffic flow.
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  22. Security Groups: Implement security groups as virtual firewalls for your EC2 instances. Security groups control inbound and outbound traffic at the instance level, ensuring that only authorized traffic is allowed.
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  24. AWS WAF and Shield: Deploy AWS Web Application Firewall (WAF) to protect your web applications from common exploits like SQL injection and cross-site scripting (XSS). AWS Shield provides protection against distributed denial-of-service (DDoS) attacks, ensuring your applications remain available even under attack.
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  26. 3. Data Protection and Encryption
  27. Protecting data at rest and in transit is critical for maintaining the confidentiality and integrity of your information.
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  29. Encryption: AWS offers various encryption services to protect your data. Use AWS Key Management Service (KMS) to manage encryption keys and encrypt data stored in S3, EBS, RDS, and other AWS services. Encrypt data in transit using SSL/TLS for secure communication between your applications and users.
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  31. Backup and Disaster Recovery: Regularly back up your data using AWS Backup or native service-level backup options. Ensure you have a robust disaster recovery plan in place, including cross-region replication and recovery procedures to minimize data loss in the event of a failure.
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  33. Data Lifecycle Management: Implement data lifecycle policies to automatically transition data between storage classes or delete it after a specified period. This not only saves costs but also reduces the risk of storing outdated or unnecessary sensitive data.
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  35. 4. Monitoring and Logging
  36. Continuous monitoring and logging are essential for detecting and responding to security incidents.
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  38. AWS CloudTrail: Enable AWS CloudTrail to log all API calls made within your AWS account. CloudTrail provides a complete audit trail of all user activity, which is crucial for investigating security incidents and ensuring compliance.
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  40. Amazon CloudWatch: Use Amazon CloudWatch to monitor the performance and health of your AWS resources in real-time. Set up alarms to notify you of unusual activity, such as spikes in resource usage, which could indicate a security breach.
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  42. AWS Config: Implement AWS Config to track and assess the configurations of your AWS resources. AWS Config helps ensure that resources comply with your organization's security policies and provides visibility into changes that could introduce vulnerabilities.

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