Case Study

Optimized Performance and Reduced Licensing Costs Through AWS Re-Architecture and Migration from CentOS to RHEL

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Industry 

Software Development

Expertise 

Amazon EC2, Amazon RDS, AWS DMS, AWS WAF, Amazon GuardDuty

Offerings/solutions 

Modernized infrastructure while enhancing security and reducing operational costs using AWS.

About the Client

Tiez Interactive is a Mumbai-based software development company delivering innovative and tailored digital solutions for over 18 years. They specialize in custom software development, UI/UX design, mobile and web app development, API integrations, and digital transformation services.

Highlights

RHEL Migration

CentOS → RHEL

Performance Boost

Through re-architecture

Cost Savings

Reduced licensing costs

The Challenge

The client’s AWS environment was entirely hosted on CentOS 7, which was reaching end-of-life. It lacked AWS IAM segregation, centralized monitoring, and automated backups. Application and database workloads ran together in a monolithic setup, creating high downtime risk and operational inefficiency.

Solutions

• Built custom VPC with private/public subnets, NAT gateways, and Bastion Host for secure access.
• Migrated 13 servers (GitLab, OpenVPN, databases) to RHEL 9 EC2 instances.
• Migrated MySQL databases from Amazon EC2 to Amazon RDS Multi-AZ using AWS DMS.
• Implemented Application Load Balancer with SSL/TLS via Certificate Manager.
• Integrated AWS WAF, Amazon GuardDuty, Amazon Inspector, AWS IAM, AWS Config, Amazon CloudWatch, and Amazon CloudTrail for security and monitoring.
• Deployed AWS Backup with EBS snapshots in Amazon S3 for disaster recovery.
• Delivered documentation and conducted knowledge transfer sessions.

The Results

The migration improved availability with a two-tier AWS architecture and enhanced security by reducing threats by over 80%. All 13 servers were seamlessly moved to RHEL 9, while centralized monitoring and automated backups cut response time by 40%. The new setup is scalable, compliant, and future-ready.

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